Sync zoneinfo database with tzdata2010n from elsie.nci.nih.gov
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fe5ecec3 1# @(#)asia 8.62
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2# This file is in the public domain, so clarified as of
3# 2009-05-17 by Arthur David Olson.
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4
5# This data is by no means authoritative; if you think you know better,
6# go ahead and edit the file (and please send any changes to
7# tz@elsie.nci.nih.gov for general use in the future).
8
bd7414aa 9# From Paul Eggert (2006-03-22):
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10#
11# A good source for time zone historical data outside the U.S. is
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12# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
13# San Diego: ACS Publications, Inc. (2003).
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14#
15# Gwillim Law writes that a good source
16# for recent time zone data is the International Air Transport
17# Association's Standard Schedules Information Manual (IATA SSIM),
18# published semiannually. Law sent in several helpful summaries
19# of the IATA's data after 1990.
20#
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21# Except where otherwise noted, Shanks & Pottenger is the source for
22# entries through 1990, and IATA SSIM is the source for entries afterwards.
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23#
24# Another source occasionally used is Edward W. Whitman, World Time Differences,
25# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
26# I found in the UCLA library.
27#
28# A reliable and entertaining source about time zones is
29# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
30#
31# I invented the abbreviations marked `*' in the following table;
32# the rest are from earlier versions of this file, or from other sources.
33# Corrections are welcome!
34# std dst
35# LMT Local Mean Time
36# 2:00 EET EEST Eastern European Time
37# 2:00 IST IDT Israel
38# 3:00 AST ADT Arabia*
39# 3:30 IRST IRDT Iran
40# 4:00 GST Gulf*
41# 5:30 IST India
42# 7:00 ICT Indochina*
43# 7:00 WIT west Indonesia
44# 8:00 CIT central Indonesia
45# 8:00 CST China
46# 9:00 CJT Central Japanese Time (1896/1937)*
47# 9:00 EIT east Indonesia
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48# 9:00 JST JDT Japan
49# 9:00 KST KDT Korea
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50# 9:30 CST (Australian) Central Standard Time
51#
52# See the `europe' file for Russia and Turkey in Asia.
53
54# From Guy Harris:
55# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
56# additional information from Tom Yap, Sun Microsystems Intercontinental
57# Technical Support (including a page from the Official Airline Guide -
58# Worldwide Edition). The names for time zones are guesses.
59
60###############################################################################
61
62# These rules are stolen from the `europe' file.
63# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
64Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S
bd7414aa 65Rule EUAsia 1979 1995 - Sep lastSun 1:00u 0 -
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66Rule EUAsia 1996 max - Oct lastSun 1:00u 0 -
67Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S
68Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 -
69Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
70Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
71Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
72Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 -
73Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S
74Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S
75Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 -
76Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
77Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
78Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -
79
80# Afghanistan
81# Zone NAME GMTOFF RULES FORMAT [UNTIL]
82Zone Asia/Kabul 4:36:48 - LMT 1890
83 4:00 - AFT 1945
84 4:30 - AFT
85
86# Armenia
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87# From Paul Eggert (2006-03-22):
88# Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST)
89# in spring 1991, then to 4:00 with no DST in fall 1995, then
90# readopting Russian DST in 1997. Go with Shanks & Pottenger, even
91# when they disagree with others. Edgar Der-Danieliantz
34850bd5 92# reported (1996-05-04) that Yerevan probably wouldn't use DST
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93# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
94# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
95# but started switching at 3:00s in 1998.
96# Zone NAME GMTOFF RULES FORMAT [UNTIL]
97Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
98 3:00 - YERT 1957 Mar # Yerevan Time
99 4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
100 3:00 1:00 YERST 1991 Sep 23 # independence
101 3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
102 4:00 - AMT 1997
103 4:00 RussiaAsia AM%sT
104
105# Azerbaijan
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106# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23):
107# According to the resolution of Cabinet of Ministers, 1997
108# Resolution available at: http://aif.az/docs/daylight_res.pdf
984263bc 109# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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110Rule Azer 1997 max - Mar lastSun 4:00 1:00 S
111Rule Azer 1997 max - Oct lastSun 5:00 0 -
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112# Zone NAME GMTOFF RULES FORMAT [UNTIL]
113Zone Asia/Baku 3:19:24 - LMT 1924 May 2
114 3:00 - BAKT 1957 Mar # Baku Time
115 4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
116 3:00 1:00 BAKST 1991 Aug 30 # independence
bc95ec93 117 3:00 RussiaAsia AZ%sT 1992 Sep lastSat 23:00
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118 4:00 - AZT 1996 # Azerbaijan time
119 4:00 EUAsia AZ%sT 1997
120 4:00 Azer AZ%sT
121
122# Bahrain
123# Zone NAME GMTOFF RULES FORMAT [UNTIL]
124Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al Manamah
125 4:00 - GST 1972 Jun
126 3:00 - AST
127
128# Bangladesh
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129# From Alexander Krivenyshev (2009-05-13):
130# According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce
131# Daylight Saving Time from June 16 to Sept 30
132#
133# Bangladesh to introduce daylight saving time likely from June 16
134# <a href="http://www.asiantribune.com/?q=node/17288">
135# http://www.asiantribune.com/?q=node/17288
136# </a>
137# or
138# <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html">
139# http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html
140# </a>
141#
142# "... Bangladesh government has decided to switch daylight saving time from
143# June
144# 16 till September 30 in a bid to ensure maximum use of daylight to cope with
145# crippling power crisis. "
146#
147# The switch will remain in effect from June 16 to Sept 30 (2009) but if
148# implemented the next year, it will come in force from April 1, 2010
149
150# From Steffen Thorsen (2009-06-02):
151# They have finally decided now, but changed the start date to midnight between
152# the 19th and 20th, and they have not set the end date yet.
153#
154# Some sources:
155# <a href="http://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601">
156# http://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
157# </a>
158# <a href="http://bdnews24.com/details.php?id=85889&cid=2">
159# http://bdnews24.com/details.php?id=85889&cid=2
160# </a>
161#
162# Our wrap-up:
163# <a href="http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html">
164# http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
165# </a>
166
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167# From A. N. M. Kamrus Saadat (2009-06-15):
168# Finally we've got the official mail regarding DST start time where DST start
169# time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh
170# Telecommunication Regulatory Commission).
171#
172# No DST end date has been announced yet.
78a8cef0 173
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174# From Alexander Krivenyshev (2009-09-25):
175# Bangladesh won't go back to Standard Time from October 1, 2009,
176# instead it will continue DST measure till the cabinet makes a fresh decision.
177#
178# Following report by same newspaper-"The Daily Star Friday":
179# "DST change awaits cabinet decision-Clock won't go back by 1-hr from Oct 1"
180# <a href="http://www.thedailystar.net/newDesign/news-details.php?nid=107021">
181# http://www.thedailystar.net/newDesign/news-details.php?nid=107021
182# </a>
183# or
184# <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html">
185# http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html
186# </a>
187
188# From Steffen Thorsen (2009-10-13):
189# IANS (Indo-Asian News Service) now reports:
190# Bangladesh has decided that the clock advanced by an hour to make
191# maximum use of daylight hours as an energy saving measure would
192# "continue for an indefinite period."
193#
194# One of many places where it is published:
195# <a href="http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html">
196# http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html
197# </a>
ca05ab86 198
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199# From Alexander Krivenyshev (2009-12-24):
200# According to Bangladesh newspaper "The Daily Star,"
201# Bangladesh will change its clock back to Standard Time on Dec 31, 2009.
202#
203# Clock goes back 1-hr on Dec 31 night.
204# <a href="http://www.thedailystar.net/newDesign/news-details.php?nid=119228">
205# http://www.thedailystar.net/newDesign/news-details.php?nid=119228
206# </a>
207# and
208# <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html">
209# http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html
210# </a>
211#
212# "...The government yesterday decided to put the clock back by one hour
213# on December 31 midnight and the new time will continue until March 31,
214# 2010 midnight. The decision came at a cabinet meeting at the Prime
215# Minister's Office last night..."
216
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217# From Alexander Krivenyshev (2010-03-22):
218# According to Bangladesh newspaper "The Daily Star,"
219# Cabinet cancels Daylight Saving Time
220# <a href="http://www.thedailystar.net/newDesign/latest_news.php?nid=22817">
221# http://www.thedailystar.net/newDesign/latest_news.php?nid=22817
222# </a>
223# or
224# <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html">
225# http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html
5a0c5ddc 226# </a>
5a0c5ddc 227
3c502036 228# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
ea962814 229Rule Dhaka 2009 only - Jun 19 23:00 1:00 S
7ebe6e57 230Rule Dhaka 2009 only - Dec 31 23:59 0 -
3c502036 231
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232# Zone NAME GMTOFF RULES FORMAT [UNTIL]
233Zone Asia/Dhaka 6:01:40 - LMT 1890
234 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
235 6:30 - BURT 1942 May 15 # Burma Time
236 5:30 - IST 1942 Sep
237 6:30 - BURT 1951 Sep 30
238 6:00 - DACT 1971 Mar 26 # Dacca Time
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239 6:00 - BDT 2009
240 6:00 Dhaka BD%sT
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241
242# Bhutan
243# Zone NAME GMTOFF RULES FORMAT [UNTIL]
244Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu
245 5:30 - IST 1987 Oct
246 6:00 - BTT # Bhutan Time
247
248# British Indian Ocean Territory
249# Whitman and the 1995 CIA time zone map say 5:00, but the
250# 1997 and later maps say 6:00. Assume the switch occurred in 1996.
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251# We have no information as to when standard time was introduced;
252# assume it occurred in 1907, the same year as Mauritius (which
253# then contained the Chagos Archipelago).
984263bc 254# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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255Zone Indian/Chagos 4:49:40 - LMT 1907
256 5:00 - IOT 1996 # BIOT Time
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257 6:00 - IOT
258
259# Brunei
260# Zone NAME GMTOFF RULES FORMAT [UNTIL]
261Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
262 7:30 - BNT 1933
263 8:00 - BNT
264
265# Burma / Myanmar
266# Zone NAME GMTOFF RULES FORMAT [UNTIL]
267Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
268 6:24:36 - RMT 1920 # Rangoon Mean Time?
269 6:30 - BURT 1942 May # Burma Time
270 9:00 - JST 1945 May 3
271 6:30 - MMT # Myanmar Time
272
273# Cambodia
274# Zone NAME GMTOFF RULES FORMAT [UNTIL]
275Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
276 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
277 7:00 - ICT 1912 May
278 8:00 - ICT 1931 May
279 7:00 - ICT
280
281# China
282
283# From Guy Harris:
284# People's Republic of China. Yes, they really have only one time zone.
285
286# From Bob Devine (1988-01-28):
287# No they don't. See TIME mag, 1986-02-17 p.52. Even though
288# China is across 4 physical time zones, before Feb 1, 1986 only the
289# Peking (Bejing) time zone was recognized. Since that date, China
290# has two of 'em -- Peking's and Urumqi (named after the capital of
291# the Xinjiang Uyghur Autonomous Region). I don't know about DST for it.
292#
293# . . .I just deleted the DST table and this editor makes it too
294# painful to suck in another copy.. So, here is what I have for
295# DST start/end dates for Peking's time zone (info from AP):
296#
297# 1986 May 4 - Sept 14
298# 1987 mid-April - ??
299
300# From U. S. Naval Observatory (1989-01-19):
301# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
302# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
303
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304# From Paul Eggert (2006-03-22):
305# Shanks & Pottenger write that China (except for Hong Kong and Macau)
306# has had a single time zone since 1980 May 1, observing summer DST
307# from 1986 through 1991; this contradicts Devine's
984263bc 308# note about Time magazine, though apparently _something_ happened in 1986.
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309# Go with Shanks & Pottenger for now. I made up names for the other
310# pre-1980 time zones.
984263bc 311
bd7414aa 312# From Shanks & Pottenger:
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313# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
314Rule Shang 1940 only - Jun 3 0:00 1:00 D
315Rule Shang 1940 1941 - Oct 1 0:00 0 S
316Rule Shang 1941 only - Mar 16 0:00 1:00 D
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317Rule PRC 1986 only - May 4 0:00 1:00 D
318Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
319Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
bd7414aa 320
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321# From Anthony Fok (2001-12-20):
322# BTW, I did some research on-line and found some info regarding these five
323# historic timezones from some Taiwan websites. And yes, there are official
bd7414aa 324# Chinese names for these locales (before 1949).
8393cd87 325#
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326# From Jesper Norgaard Welen (2006-07-14):
327# I have investigated the timezones around 1970 on the
328# http://www.astro.com/atlas site [with provinces and county
329# boundaries summarized below].... A few other exceptions were two
330# counties on the Sichuan side of the Xizang-Sichuan border,
331# counties Dege and Baiyu which lies on the Sichuan side and are
332# therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege
333# county is GMT+8 according to astro.com while Baiyu county is GMT+6
334# (could be true), for the moment I am assuming that those two
335# counties are mistakes in the astro.com data.
336
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337# From Paul Eggert (2008-02-11):
338# I just now checked Google News for western news sources that talk
339# about China's single time zone, and couldn't find anything before 1986
340# talking about China being in one time zone. (That article was: Jim
341# Mann, "A clumsy embrace for another western custom: China on daylight
342# time--sort of", Los Angeles Times, 1986-05-05. By the way, this
343# article confirms the tz database's data claiming that China began
344# observing daylight saving time in 1986.
345#
346# From Thomas S. Mullaney (2008-02-11):
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347# I think you're combining two subjects that need to treated
348# separately: daylight savings (which, you're correct, wasn't
349# implemented until the 1980s) and the unified time zone centered near
350# Beijing (which was implemented in 1949). Briefly, there was also a
351# "Lhasa Time" in Tibet and "Urumqi Time" in Xinjiang. The first was
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352# ceased, and the second eventually recognized (again, in the 1980s).
353#
354# From Paul Eggert (2008-06-30):
355# There seems to be a good chance China switched to a single time zone in 1949
356# rather than in 1980 as Shanks & Pottenger have it, but we don't have a
357# reliable documentary source saying so yet, so for now we still go with
358# Shanks & Pottenger.
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359
360# Zone NAME GMTOFF RULES FORMAT [UNTIL]
984263bc 361# Changbai Time ("Long-white Time", Long-white = Heilongjiang area)
bd7414aa 362# Heilongjiang (except Mohe county), Jilin
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363Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin
364 8:30 - CHAT 1932 Mar # Changbai Time
365 8:00 - CST 1940
366 9:00 - CHAT 1966 May
367 8:30 - CHAT 1980 May
368 8:00 PRC C%sT
369# Zhongyuan Time ("Central plain Time")
bd7414aa 370# most of China
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371Zone Asia/Shanghai 8:05:52 - LMT 1928
372 8:00 Shang C%sT 1949
373 8:00 PRC C%sT
374# Long-shu Time (probably due to Long and Shu being two names of that area)
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375# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan;
376# most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong
377# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing,
378# Yangchun, Yangjiang, Yu'nan, and Yunfu.
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379Zone Asia/Chongqing 7:06:20 - LMT 1928 # or Chungking
380 7:00 - LONT 1980 May # Long-shu Time
381 8:00 PRC C%sT
382# Xin-zang Time ("Xinjiang-Tibet Time")
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383# The Gansu counties Aksay, Anxi, Dunhuang, Subei; west Qinghai;
384# the Guangdong counties Xuwen, Haikang, Suixi, Lianjiang,
385# Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, and Xinyi;
386# east Tibet, including Lhasa, Chamdo, Shigaise, Jimsar, Shawan and Hutubi;
387# east Xinjiang, including Urumqi, Turpan, Karamay, Korla, Minfeng, Jinghe,
388# Wusu, Qiemo, Xinyan, Wulanwusu, Jinghe, Yumin, Tacheng, Tuoli, Emin,
389# Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami,
390# Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan.
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391Zone Asia/Urumqi 5:50:20 - LMT 1928 # or Urumchi
392 6:00 - URUT 1980 May # Urumqi Time
393 8:00 PRC C%sT
394# Kunlun Time
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395# West Tibet, including Pulan, Aheqi, Shufu, Shule;
396# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke,
397# Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding,
398# and Yarkand.
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399
400# From Luther Ma (2009-10-17):
401# Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in
402# Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time,
403# but have no need of it. All planes, trains, and schools function on
404# what is called "Beijing time." When Han make an appointment in Chinese
405# they implicitly use Beijing time.
406#
407# On the other hand, ethnic Uyghurs, who make up about half the
408# population of Xinjiang, typically use "Xinjiang time" which is two
409# hours behind Beijing time, or UTC +0600. The government of the Xinjiang
410# Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as
411# local governments such as the Urumqi city government use both times in
412# publications, referring to what is popularly called Xinjiang time as
413# "Urumqi time." When Uyghurs make an appointment in the Uyghur language
414# they almost invariably use Xinjiang time.
415#
416# (Their ethnic Han compatriots would typically have no clue of its
417# widespread use, however, because so extremely few of them are fluent in
418# Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.)
419#
420# (...As with the rest of China there was a brief interval ending in 1990
421# or 1991 when summer time was in use. The confusion was severe, with
422# the province not having dual times but four times in use at the same
423# time. Some areas remained on standard Xinjiang time or Beijing time and
424# others moving their clocks ahead.)
425#
426# ...an example of an official website using of Urumqi time.
427#
428# The first few lines of the Google translation of
429# <a href="http://www.fjysgl.gov.cn/show.aspx?id=2379&cid=39">
430# http://www.fjysgl.gov.cn/show.aspx?id=2379&cid=39
431# </a>
432# (retrieved 2009-10-13)
433# > Urumqi fire seven people are missing the alleged losses of at least
434# > 500 million yuan
435# >
436# > (Reporter Dong Liu) the day before 20:20 or so (Urumqi Time 18:20),
437# > Urumqi City Department of International Plaza Luther Qiantang River
438# > burst fire. As of yesterday, 18:30, Urumqi City Fire officers and men
439# > have worked continuously for 22 hours...
440
441# From Luther Ma (2009-11-19):
442# With the risk of being redundant to previous answers these are the most common
443# English "transliterations" (w/o using non-English symbols):
444#
445# 1. Wulumuqi...
446# 2. Kashi...
447# 3. Urumqi...
448# 4. Kashgar...
449# ...
450# 5. It seems that Uyghurs in Urumqi has been using Xinjiang since at least the
451# 1960's. I know of one Han, now over 50, who grew up in the surrounding
452# countryside and used Xinjiang time as a child.
453#
454# 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any
455# start date for Xinjiang time.
456#
457# Without having access to local historical records, nor the ability to legally
458# publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur
459# Autonomous Region under the PRC. (Before that Uyghurs, of course, would also
460# not be using Beijing time, but some local time.)
461
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462Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
463 5:30 - KAST 1940 # Kashgar Time
464 5:00 - KAST 1980 May
465 8:00 PRC C%sT
466
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467
468# From Lee Yiu Chung (2009-10-24):
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469# I found there are some mistakes for the...DST rule for Hong
470# Kong. [According] to the DST record from Hong Kong Observatory (actually,
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471# it is not [an] observatory, but the official meteorological agency of HK,
472# and also serves as the official timing agency), there are some missing
473# and incorrect rules. Although the exact switch over time is missing, I
474# think 3:30 is correct. The official DST record for Hong Kong can be
475# obtained from
476# <a href="http://www.hko.gov.hk/gts/time/Summertime.htm">
477# http://www.hko.gov.hk/gts/time/Summertime.htm
478# </a>.
479
480# From Arthur David Olson (2009-10-28):
481# Here are the dates given at
482# <a href="http://www.hko.gov.hk/gts/time/Summertime.htm">
483# http://www.hko.gov.hk/gts/time/Summertime.htm
484# </a>
485# as of 2009-10-28:
486# Year Period
487# 1941 1 Apr to 30 Sep
488# 1942 Whole year
489# 1943 Whole year
490# 1944 Whole year
491# 1945 Whole year
492# 1946 20 Apr to 1 Dec
493# 1947 13 Apr to 30 Dec
494# 1948 2 May to 31 Oct
495# 1949 3 Apr to 30 Oct
496# 1950 2 Apr to 29 Oct
497# 1951 1 Apr to 28 Oct
498# 1952 6 Apr to 25 Oct
499# 1953 5 Apr to 1 Nov
500# 1954 21 Mar to 31 Oct
501# 1955 20 Mar to 6 Nov
502# 1956 18 Mar to 4 Nov
503# 1957 24 Mar to 3 Nov
504# 1958 23 Mar to 2 Nov
505# 1959 22 Mar to 1 Nov
506# 1960 20 Mar to 6 Nov
507# 1961 19 Mar to 5 Nov
508# 1962 18 Mar to 4 Nov
509# 1963 24 Mar to 3 Nov
510# 1964 22 Mar to 1 Nov
511# 1965 18 Apr to 17 Oct
512# 1966 17 Apr to 16 Oct
513# 1967 16 Apr to 22 Oct
514# 1968 21 Apr to 20 Oct
515# 1969 20 Apr to 19 Oct
516# 1970 19 Apr to 18 Oct
517# 1971 18 Apr to 17 Oct
518# 1972 16 Apr to 22 Oct
519# 1973 22 Apr to 21 Oct
520# 1973/74 30 Dec 73 to 20 Oct 74
521# 1975 20 Apr to 19 Oct
522# 1976 18 Apr to 17 Oct
523# 1977 Nil
524# 1978 Nil
525# 1979 13 May to 21 Oct
526# 1980 to Now Nil
527# The page does not give start or end times of day.
528# The page does not give a start date for 1942.
529# The page does not givw an end date for 1945.
530# The Japanese occupation of Hong Kong began on 1941-12-25.
531# The Japanese surrender of Hong Kong was signed 1945-09-15.
532# For lack of anything better, use start of those days as the transition times.
533
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534# Hong Kong (Xianggang)
535# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
f4d6ca16
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536Rule HK 1941 only - Apr 1 3:30 1:00 S
537Rule HK 1941 only - Sep 30 3:30 0 -
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538Rule HK 1946 only - Apr 20 3:30 1:00 S
539Rule HK 1946 only - Dec 1 3:30 0 -
540Rule HK 1947 only - Apr 13 3:30 1:00 S
541Rule HK 1947 only - Dec 30 3:30 0 -
542Rule HK 1948 only - May 2 3:30 1:00 S
f4d6ca16
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543Rule HK 1948 1951 - Oct lastSun 3:30 0 -
544Rule HK 1952 only - Oct 25 3:30 0 -
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545Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
546Rule HK 1953 only - Nov 1 3:30 0 -
547Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
548Rule HK 1954 only - Oct 31 3:30 0 -
549Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
fe5ecec3
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550Rule HK 1965 1976 - Apr Sun>=16 3:30 1:00 S
551Rule HK 1965 1976 - Oct Sun>=16 3:30 0 -
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552Rule HK 1973 only - Dec 30 3:30 1:00 S
553Rule HK 1979 only - May Sun>=8 3:30 1:00 S
554Rule HK 1979 only - Oct Sun>=16 3:30 0 -
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555# Zone NAME GMTOFF RULES FORMAT [UNTIL]
556Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
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557 8:00 HK HK%sT 1941 Dec 25
558 9:00 - JST 1945 Sep 15
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559 8:00 HK HK%sT
560
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561###############################################################################
562
563# Taiwan
564
bd7414aa 565# Shanks & Pottenger write that Taiwan observed DST during 1945, when it
984263bc
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566# was still controlled by Japan. This is hard to believe, but we don't
567# have any other information.
568
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569# From smallufo (2010-04-03):
570# According to Taiwan's CWB,
571# <a href="http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm">
572# http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm
573# </a>
574# Taipei has DST in 1979 between July 1st and Sep 30.
575
576# From Arthur David Olson (2010-04-07):
577# Here's Google's translation of the table at the bottom of the "summert.htm" page:
578# Decade Name Start and end date
579# Republic of China 34 years to 40 years (AD 1945-1951 years) Summer Time May 1 to September 30
580# 41 years of the Republic of China (AD 1952) Daylight Saving Time March 1 to October 31
581# Republic of China 42 years to 43 years (AD 1953-1954 years) Daylight Saving Time April 1 to October 31
582# In the 44 years to 45 years (AD 1955-1956 years) Daylight Saving Time April 1 to September 30
583# Republic of China 46 years to 48 years (AD 1957-1959) Summer Time April 1 to September 30
584# Republic of China 49 years to 50 years (AD 1960-1961) Summer Time June 1 to September 30
585# Republic of China 51 years to 62 years (AD 1962-1973 years) Stop Summer Time
586# Republic of China 63 years to 64 years (1974-1975 AD) Daylight Saving Time April 1 to September 30
587# Republic of China 65 years to 67 years (1976-1978 AD) Stop Daylight Saving Time
588# Republic of China 68 years (AD 1979) Daylight Saving Time July 1 to September 30
589# Republic of China since 69 years (AD 1980) Stop Daylight Saving Time
590
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591# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
592Rule Taiwan 1945 1951 - May 1 0:00 1:00 D
593Rule Taiwan 1945 1951 - Oct 1 0:00 0 S
594Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
595Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
596Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
597Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
598Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
599Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
600Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
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601Rule Taiwan 1979 only - Jun 30 0:00 1:00 D
602Rule Taiwan 1979 only - Sep 30 0:00 0 S
603
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604# Zone NAME GMTOFF RULES FORMAT [UNTIL]
605Zone Asia/Taipei 8:06:00 - LMT 1896 # or Taibei or T'ai-pei
606 8:00 Taiwan C%sT
607
608# Macau (Macao, Aomen)
609# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
610Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 S
611Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 -
612Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 S
613Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 S
614Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 S
615Rule Macau 1965 only - Oct 31 0:00 0 -
616Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 S
617Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 -
618Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 S
619Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 -
620Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 -
621Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 S
622Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 S
623Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 -
624# Zone NAME GMTOFF RULES FORMAT [UNTIL]
625Zone Asia/Macau 7:34:20 - LMT 1912
626 8:00 Macau MO%sT 1999 Dec 20 # return to China
627 8:00 PRC C%sT
628
629
630###############################################################################
631
632# Cyprus
633# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
634Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
635Rule Cyprus 1975 only - Oct 12 0:00 0 -
636Rule Cyprus 1976 only - May 15 0:00 1:00 S
637Rule Cyprus 1976 only - Oct 11 0:00 0 -
638Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S
639Rule Cyprus 1977 only - Sep 25 0:00 0 -
640Rule Cyprus 1978 only - Oct 2 0:00 0 -
641Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 -
642Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S
643# Zone NAME GMTOFF RULES FORMAT [UNTIL]
644Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
645 2:00 Cyprus EE%sT 1998 Sep
646 2:00 EUAsia EE%sT
647# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
648
649# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72.
650# However, for various reasons many users expect to find it under Europe.
651Link Asia/Nicosia Europe/Nicosia
652
653# Georgia
9ffe4b14 654# From Paul Eggert (1994-11-19):
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655# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
656# an hour recently, due to a law proposed by Zurab Murvanidze,
657# an MP who went on a hunger strike for 11 days to force discussion about it!
658# We have no details, but we'll guess they didn't move the clocks back in fall.
659#
9ffe4b14 660# From Mathew Englander, quoting AP (1996-10-23 13:05-04):
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661# Instead of putting back clocks at the end of October, Georgia
662# will stay on daylight savings time this winter to save energy,
663# President Eduard Shevardnadze decreed Wednesday.
ba5ba9da
JR
664#
665# From the BBC via Joseph S. Myers (2004-06-27):
bc95ec93 666#
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JR
667# Georgia moved closer to Western Europe on Sunday... The former Soviet
668# republic has changed its time zone back to that of Moscow. As a result it
669# is now just four hours ahead of Greenwich Mean Time, rather than five hours
670# ahead. The switch was decreed by the pro-Western president of Georgia,
671# Mikhail Saakashvili, who said the change was partly prompted by the process
672# of integration into Europe.
673
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674# From Teimuraz Abashidze (2005-11-07):
675# Government of Georgia ... decided to NOT CHANGE daylight savings time on
676# [Oct.] 30, as it was done before during last more than 10 years.
677# Currently, we are in fact GMT +4:00, as before 30 October it was GMT
678# +3:00.... The problem is, there is NO FORMAL LAW or governmental document
679# about it. As far as I can find, I was told, that there is no document,
680# because we just DIDN'T ISSUE document about switching to winter time....
681# I don't know what can be done, especially knowing that some years ago our
682# DST rules where changed THREE TIMES during one month.
683
684
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685# Zone NAME GMTOFF RULES FORMAT [UNTIL]
686Zone Asia/Tbilisi 2:59:16 - LMT 1880
687 2:59:16 - TBMT 1924 May 2 # Tbilisi Mean Time
688 3:00 - TBIT 1957 Mar # Tbilisi Time
689 4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
690 3:00 1:00 TBIST 1991 Apr 9 # independence
691 3:00 RussiaAsia GE%sT 1992 # Georgia Time
692 3:00 E-EurAsia GE%sT 1994 Sep lastSun
693 4:00 E-EurAsia GE%sT 1996 Oct lastSun
694 4:00 1:00 GEST 1997 Mar lastSun
ba5ba9da 695 4:00 E-EurAsia GE%sT 2004 Jun 27
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696 3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00
697 4:00 - GET
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698
699# East Timor
700
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701# See Indonesia for the 1945 transition.
702
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703# From Joao Carrascalao, brother of the former governor of East Timor, in
704# <a href="http://etan.org/et99c/december/26-31/30ETMAY.htm">
705# East Timor may be late for its millennium
706# </a> (1999-12-26/31):
707# Portugal tried to change the time forward in 1974 because the sun
708# rises too early but the suggestion raised a lot of problems with the
709# Timorese and I still don't think it would work today because it
710# conflicts with their way of life.
711
712# From Paul Eggert (2000-12-04):
713# We don't have any record of the above attempt.
714# Most likely our records are incomplete, but we have no better data.
715
716# <a href="http://www.hri.org/news/world/undh/last/00-08-16.undh.html">
717# From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General
718# (2000-08-16)</a>:
719# The Cabinet of the East Timor Transition Administration decided
720# today to advance East Timor's time by one hour. The time change,
721# which will be permanent, with no seasonal adjustment, will happen at
722# midnight on Saturday, September 16.
723
724# Zone NAME GMTOFF RULES FORMAT [UNTIL]
725Zone Asia/Dili 8:22:20 - LMT 1912
9ffe4b14 726 8:00 - TLT 1942 Feb 21 23:00 # E Timor Time
8393cd87 727 9:00 - JST 1945 Sep 23
9ffe4b14 728 9:00 - TLT 1976 May 3
984263bc 729 8:00 - CIT 2000 Sep 17 00:00
9ffe4b14 730 9:00 - TLT
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MD
731
732# India
733# Zone NAME GMTOFF RULES FORMAT [UNTIL]
e4a74243 734Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
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735 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
736 6:30 - BURT 1942 May 15 # Burma Time
737 5:30 - IST 1942 Sep
738 5:30 1:00 IST 1945 Oct 15
739 5:30 - IST
e4a74243 740# The following are like Asia/Kolkata:
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741# Andaman Is
742# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
743# Nicobar Is
744
745# Indonesia
746#
bd7414aa 747# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
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MD
748# <http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime>
749# says that Indonesia's time zones changed on 1988-01-01. Looking at some
750# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat
751# and Kalimantan Tengah) switching from UTC+8 to UTC+7.
752#
8393cd87
SW
753# From Paul Eggert (2007-03-10):
754# Here is another correction to Shanks & Pottenger.
755# JohnTWB writes that Japanese forces did not surrender control in
756# Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and
757# other formal surrender ceremonies were September 9, 11, and 13, plus
758# September 12 for the regional surrender to Mountbatten in Singapore.
759# These would be the earliest possible times for a change.
760# Regimes horaires pour le monde entier, by Henri Le Corre, (Editions
761# Traditionnelles, 1987, Paris) says that Java and Madura switched
762# from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
763# (Hollandia). For now, assume all Indonesian locations other than Jayapura
764# switched on 1945-09-23.
765#
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766# Zone NAME GMTOFF RULES FORMAT [UNTIL]
767Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
bd7414aa 768# Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13,
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769# but this must be a typo.
770 7:07:12 - JMT 1923 Dec 31 23:47:12 # Jakarta
771 7:20 - JAVT 1932 Nov # Java Time
772 7:30 - WIT 1942 Mar 23
8393cd87 773 9:00 - JST 1945 Sep 23
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774 7:30 - WIT 1948 May
775 8:00 - WIT 1950 May
776 7:30 - WIT 1964
777 7:00 - WIT
778Zone Asia/Pontianak 7:17:20 - LMT 1908 May
779 7:17:20 - PMT 1932 Nov # Pontianak MT
780 7:30 - WIT 1942 Jan 29
8393cd87 781 9:00 - JST 1945 Sep 23
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MD
782 7:30 - WIT 1948 May
783 8:00 - WIT 1950 May
784 7:30 - WIT 1964
785 8:00 - CIT 1988 Jan 1
786 7:00 - WIT
787Zone Asia/Makassar 7:57:36 - LMT 1920
788 7:57:36 - MMT 1932 Nov # Macassar MT
789 8:00 - CIT 1942 Feb 9
8393cd87 790 9:00 - JST 1945 Sep 23
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791 8:00 - CIT
792Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
8393cd87 793 9:00 - EIT 1944 Sep 1
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794 9:30 - CST 1964
795 9:00 - EIT
796
797# Iran
798
799# From Roozbeh Pournader (2003-03-15):
800# This is an English translation of what I just found (originally in Persian).
801# The Gregorian dates in brackets are mine:
802#
803# Official Newspaper No. 13548-1370/6/25 [1991-09-16]
804# No. 16760/T233 H 1370/6/10 [1991-09-01]
805#
806# The Rule About Change of the Official Time of the Country
807#
808# The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14],
809# based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13]
810# of the Country's Organization for Official and Employment Affairs,
811# and referring to the law for equating the working hours of workers
812# and officers in the whole country dated 1359/4/23 [1980-07-14], and
813# for synchronizing the official times of the country, agreed that:
814#
815# The official time of the country will should move forward one hour
816# at the 24[:00] hours of the first day of Farvardin and should return
817# to its previous state at the 24[:00] hours of the 30th day of
818# Shahrivar.
819#
820# First Deputy to the President - Hassan Habibi
821#
822# From personal experience, that agrees with what has been followed
823# for at least the last 5 years. Before that, for a few years, the
824# date used was the first Thursday night of Farvardin and the last
825# Thursday night of Shahrivar, but I can't give exact dates....
826# I have also changed the abbreviations to what is considered correct
827# here in Iran, IRST for regular time and IRDT for daylight saving time.
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SW
828#
829# From Roozbeh Pournader (2005-04-05):
830# The text of the Iranian law, in effect since 1925, clearly mentions
831# that the true solar year is the measure, and there is no arithmetic
832# leap year calculation involved. There has never been any serious
833# plan to change that law....
834#
bd7414aa
SW
835# From Paul Eggert (2006-03-22):
836# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter.
bc95ec93
SW
837# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates,
838# stopping after 2037 when 32-bit time_t's overflow.
839# That cal-persia used Birashk's approximation, which disagrees with the solar
840# calendar predictions for the year 2025, so I corrected those dates by hand.
841#
842# From Oscar van Vlijmen (2005-03-30), writing about future
843# discrepancies between cal-persia and the Iranian calendar:
844# For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for
845# the vernal equinox and that gets so close to 12:00 some local
846# Iranian time that the definition of the correct location needs to be
847# known exactly, amongst other factors. 2157 is even closer:
848# 2157-03-20 08:37:15.5 UT. But the Gregorian year 2025 should give
849# no interpretation problem whatsoever. By the way, another instant
850# in the near future where there will be a discrepancy between
851# arithmetical and astronomical Iranian calendars will be in 2058:
852# vernal equinox on 2058-03-20 09:03:05.9 UT. The Java version of
853# Reingold's/Dershowitz' calculator gives correctly the Gregorian date
854# 2058-03-21 for 1 Farvardin 1437 (astronomical).
984263bc 855#
bd7414aa
SW
856# From Steffen Thorsen (2006-03-22):
857# Several of my users have reported that Iran will not observe DST anymore:
858# http://www.irna.ir/en/news/view/line-17/0603193812164948.htm
859#
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SW
860# From Reuters (2007-09-16), with a heads-up from Jesper Norgaard Welen:
861# ... the Guardian Council ... approved a law on Sunday to re-introduce
862# daylight saving time ...
863# http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
864#
9d5f55b0
SW
865# From Roozbeh Pournader (2007-11-05):
866# This is quoted from Official Gazette of the Islamic Republic of
867# Iran, Volume 63, Number 18242, dated Tuesday 1386/6/24
868# [2007-10-16]. I am doing the best translation I can:...
869# The official time of the country will be moved forward for one hour
870# on the 24 hours of the first day of the month of Farvardin and will
871# be changed back to its previous state on the 24 hours of the
872# thirtieth day of Shahrivar.
873#
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874# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
875Rule Iran 1978 1980 - Mar 21 0:00 1:00 D
876Rule Iran 1978 only - Oct 21 0:00 0 S
877Rule Iran 1979 only - Sep 19 0:00 0 S
878Rule Iran 1980 only - Sep 23 0:00 0 S
879Rule Iran 1991 only - May 3 0:00 1:00 D
880Rule Iran 1992 1995 - Mar 22 0:00 1:00 D
881Rule Iran 1991 1995 - Sep 22 0:00 0 S
882Rule Iran 1996 only - Mar 21 0:00 1:00 D
883Rule Iran 1996 only - Sep 21 0:00 0 S
884Rule Iran 1997 1999 - Mar 22 0:00 1:00 D
885Rule Iran 1997 1999 - Sep 22 0:00 0 S
886Rule Iran 2000 only - Mar 21 0:00 1:00 D
887Rule Iran 2000 only - Sep 21 0:00 0 S
888Rule Iran 2001 2003 - Mar 22 0:00 1:00 D
889Rule Iran 2001 2003 - Sep 22 0:00 0 S
890Rule Iran 2004 only - Mar 21 0:00 1:00 D
891Rule Iran 2004 only - Sep 21 0:00 0 S
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892Rule Iran 2005 only - Mar 22 0:00 1:00 D
893Rule Iran 2005 only - Sep 22 0:00 0 S
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894Rule Iran 2008 only - Mar 21 0:00 1:00 D
895Rule Iran 2008 only - Sep 21 0:00 0 S
896Rule Iran 2009 2011 - Mar 22 0:00 1:00 D
897Rule Iran 2009 2011 - Sep 22 0:00 0 S
898Rule Iran 2012 only - Mar 21 0:00 1:00 D
899Rule Iran 2012 only - Sep 21 0:00 0 S
900Rule Iran 2013 2015 - Mar 22 0:00 1:00 D
901Rule Iran 2013 2015 - Sep 22 0:00 0 S
902Rule Iran 2016 only - Mar 21 0:00 1:00 D
903Rule Iran 2016 only - Sep 21 0:00 0 S
904Rule Iran 2017 2019 - Mar 22 0:00 1:00 D
905Rule Iran 2017 2019 - Sep 22 0:00 0 S
906Rule Iran 2020 only - Mar 21 0:00 1:00 D
907Rule Iran 2020 only - Sep 21 0:00 0 S
908Rule Iran 2021 2023 - Mar 22 0:00 1:00 D
909Rule Iran 2021 2023 - Sep 22 0:00 0 S
910Rule Iran 2024 only - Mar 21 0:00 1:00 D
911Rule Iran 2024 only - Sep 21 0:00 0 S
912Rule Iran 2025 2027 - Mar 22 0:00 1:00 D
913Rule Iran 2025 2027 - Sep 22 0:00 0 S
914Rule Iran 2028 2029 - Mar 21 0:00 1:00 D
915Rule Iran 2028 2029 - Sep 21 0:00 0 S
916Rule Iran 2030 2031 - Mar 22 0:00 1:00 D
917Rule Iran 2030 2031 - Sep 22 0:00 0 S
918Rule Iran 2032 2033 - Mar 21 0:00 1:00 D
919Rule Iran 2032 2033 - Sep 21 0:00 0 S
920Rule Iran 2034 2035 - Mar 22 0:00 1:00 D
921Rule Iran 2034 2035 - Sep 22 0:00 0 S
922Rule Iran 2036 2037 - Mar 21 0:00 1:00 D
923Rule Iran 2036 2037 - Sep 21 0:00 0 S
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924# Zone NAME GMTOFF RULES FORMAT [UNTIL]
925Zone Asia/Tehran 3:25:44 - LMT 1916
926 3:25:44 - TMT 1946 # Tehran Mean Time
927 3:30 - IRST 1977 Nov
928 4:00 Iran IR%sT 1979
929 3:30 Iran IR%sT
930
931
932# Iraq
933#
9ffe4b14 934# From Jonathan Lennox (2000-06-12):
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MD
935# An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in
936# the U.S. edition) on the Iraqi Kurds contains a paragraph:
937# "The three northern provinces ... switched their clocks this spring and
938# are an hour ahead of Baghdad."
939#
940# But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows:
941# In the past, some Kurdish nationalists, as a protest to the Iraqi
942# Government, did not adhere to daylight saving time. They referred
943# to daylight saving as Saddam time. But, as of today, the time zone
944# in Iraqi-Kurdistan is on standard time with Baghdad, Iraq.
945#
946# So we'll ignore the Economist's claim.
947
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948# From Steffen Thorsen (2008-03-10):
949# The cabinet in Iraq abolished DST last week, according to the following
950# news sources (in Arabic):
951# <a href="http://www.aljeeran.net/wesima_articles/news-20080305-98602.html">
952# http://www.aljeeran.net/wesima_articles/news-20080305-98602.html
953# </a>
954# <a href="http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10">
955# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10
956# </a>
957#
958# We have published a short article in English about the change:
959# <a href="http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html">
960# http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
961# </a>
962
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963# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
964Rule Iraq 1982 only - May 1 0:00 1:00 D
965Rule Iraq 1982 1984 - Oct 1 0:00 0 S
966Rule Iraq 1983 only - Mar 31 0:00 1:00 D
967Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
968Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S
969Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D
970# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo.
bd7414aa 971# Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
8393cd87 972#
e4a74243
SW
973Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 D
974Rule Iraq 1991 2007 - Oct 1 3:00s 0 S
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MD
975# Zone NAME GMTOFF RULES FORMAT [UNTIL]
976Zone Asia/Baghdad 2:57:40 - LMT 1890
977 2:57:36 - BMT 1918 # Baghdad Mean Time?
978 3:00 - AST 1982 May
979 3:00 Iraq A%sT
980
981
982###############################################################################
983
984# Israel
985
986# From Ephraim Silverberg (2001-01-11):
987#
988# I coined "IST/IDT" circa 1988. Until then there were three
989# different abbreviations in use:
990#
991# JST Jerusalem Standard Time [Danny Braniss, Hebrew University]
992# IZT Israel Zonal (sic) Time [Prof. Haim Papo, Technion]
993# EEST Eastern Europe Standard Time [used by almost everyone else]
994#
995# Since timezones should be called by country and not capital cities,
996# I ruled out JST. As Israel is in Asia Minor and not Eastern Europe,
997# EEST was equally unacceptable. Since "zonal" was not compatible with
998# any other timezone abbreviation, I felt that 'IST' was the way to go
999# and, indeed, it has received almost universal acceptance in timezone
1000# settings in Israeli computers.
1001#
1002# In any case, I am happy to share timezone abbreviations with India,
1003# high on my favorite-country list (and not only because my wife's
1004# family is from India).
1005
bd7414aa 1006# From Shanks & Pottenger:
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MD
1007# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1008Rule Zion 1940 only - Jun 1 0:00 1:00 D
1009Rule Zion 1942 1944 - Nov 1 0:00 0 S
1010Rule Zion 1943 only - Apr 1 2:00 1:00 D
1011Rule Zion 1944 only - Apr 1 0:00 1:00 D
1012Rule Zion 1945 only - Apr 16 0:00 1:00 D
1013Rule Zion 1945 only - Nov 1 2:00 0 S
1014Rule Zion 1946 only - Apr 16 2:00 1:00 D
1015Rule Zion 1946 only - Nov 1 0:00 0 S
1016Rule Zion 1948 only - May 23 0:00 2:00 DD
1017Rule Zion 1948 only - Sep 1 0:00 1:00 D
1018Rule Zion 1948 1949 - Nov 1 2:00 0 S
1019Rule Zion 1949 only - May 1 0:00 1:00 D
1020Rule Zion 1950 only - Apr 16 0:00 1:00 D
1021Rule Zion 1950 only - Sep 15 3:00 0 S
1022Rule Zion 1951 only - Apr 1 0:00 1:00 D
1023Rule Zion 1951 only - Nov 11 3:00 0 S
1024Rule Zion 1952 only - Apr 20 2:00 1:00 D
1025Rule Zion 1952 only - Oct 19 3:00 0 S
1026Rule Zion 1953 only - Apr 12 2:00 1:00 D
1027Rule Zion 1953 only - Sep 13 3:00 0 S
1028Rule Zion 1954 only - Jun 13 0:00 1:00 D
1029Rule Zion 1954 only - Sep 12 0:00 0 S
1030Rule Zion 1955 only - Jun 11 2:00 1:00 D
1031Rule Zion 1955 only - Sep 11 0:00 0 S
1032Rule Zion 1956 only - Jun 3 0:00 1:00 D
1033Rule Zion 1956 only - Sep 30 3:00 0 S
1034Rule Zion 1957 only - Apr 29 2:00 1:00 D
1035Rule Zion 1957 only - Sep 22 0:00 0 S
1036Rule Zion 1974 only - Jul 7 0:00 1:00 D
1037Rule Zion 1974 only - Oct 13 0:00 0 S
1038Rule Zion 1975 only - Apr 20 0:00 1:00 D
1039Rule Zion 1975 only - Aug 31 0:00 0 S
1040Rule Zion 1985 only - Apr 14 0:00 1:00 D
1041Rule Zion 1985 only - Sep 15 0:00 0 S
1042Rule Zion 1986 only - May 18 0:00 1:00 D
1043Rule Zion 1986 only - Sep 7 0:00 0 S
1044Rule Zion 1987 only - Apr 15 0:00 1:00 D
1045Rule Zion 1987 only - Sep 13 0:00 0 S
1046Rule Zion 1988 only - Apr 9 0:00 1:00 D
1047Rule Zion 1988 only - Sep 3 0:00 0 S
1048
9ffe4b14 1049# From Ephraim Silverberg
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SW
1050# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22,
1051# and 2005-02-17):
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MD
1052
1053# According to the Office of the Secretary General of the Ministry of
1054# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
1055# One thing is entrenched in law, however: that there must be at least 150
1056# days of daylight savings time annually. From 1993-1998, the change to
1057# daylight savings time was on a Friday morning from midnight IST to
1058# 1 a.m IDT; up until 1998, the change back to standard time was on a
1059# Saturday night from midnight daylight savings time to 11 p.m. standard
1060# time. 1996 is an exception to this rule where the change back to standard
1061# time took place on Sunday night instead of Saturday night to avoid
1062# conflicts with the Jewish New Year. In 1999, the change to
1063# daylight savings time was still on a Friday morning but from
1064# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
1065# was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for
1066# 1999 only. In the year 2000, the change to daylight savings time was
1067# similar to 1999, but although the change back will be on a Friday, it
1068# will take place from 1 a.m. IDT to midnight IST. Starting in 2001, all
1069# changes to/from will take place at 1 a.m. old time, but now there is no
1070# rule as to what day of the week it will take place in as the start date
1071# (except in 2003) is the night after the Passover Seder (i.e. the eve
1072# of the 16th of Nisan in the lunar Hebrew calendar) and the end date
1073# (except in 2002) is three nights before Yom Kippur [Day of Atonement]
1074# (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
1075
1076# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1077Rule Zion 1989 only - Apr 30 0:00 1:00 D
1078Rule Zion 1989 only - Sep 3 0:00 0 S
1079Rule Zion 1990 only - Mar 25 0:00 1:00 D
1080Rule Zion 1990 only - Aug 26 0:00 0 S
1081Rule Zion 1991 only - Mar 24 0:00 1:00 D
1082Rule Zion 1991 only - Sep 1 0:00 0 S
1083Rule Zion 1992 only - Mar 29 0:00 1:00 D
1084Rule Zion 1992 only - Sep 6 0:00 0 S
1085Rule Zion 1993 only - Apr 2 0:00 1:00 D
1086Rule Zion 1993 only - Sep 5 0:00 0 S
1087
1088# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
1089# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
1090# calling the office directly at 972-2-6701447 or 972-2-6701448.
1091
1092# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1093Rule Zion 1994 only - Apr 1 0:00 1:00 D
1094Rule Zion 1994 only - Aug 28 0:00 0 S
1095Rule Zion 1995 only - Mar 31 0:00 1:00 D
1096Rule Zion 1995 only - Sep 3 0:00 0 S
1097
1098# The dates for 1996 were determined by the Minister of Interior of the
1099# time, Haim Ramon. The official announcement regarding 1996-1998
1100# (with the dates for 1997-1998 no longer being relevant) can be viewed at:
1101#
bc95ec93 1102# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
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MD
1103#
1104# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
1105#
1106# The official announcements for the years 1997-1999 can be viewed at:
1107#
bc95ec93 1108# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
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MD
1109#
1110# where YYYY is the relevant year.
1111
1112# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1113Rule Zion 1996 only - Mar 15 0:00 1:00 D
1114Rule Zion 1996 only - Sep 16 0:00 0 S
1115Rule Zion 1997 only - Mar 21 0:00 1:00 D
1116Rule Zion 1997 only - Sep 14 0:00 0 S
1117Rule Zion 1998 only - Mar 20 0:00 1:00 D
1118Rule Zion 1998 only - Sep 6 0:00 0 S
1119Rule Zion 1999 only - Apr 2 2:00 1:00 D
1120Rule Zion 1999 only - Sep 3 2:00 0 S
1121
1122# The Knesset Interior Committee has changed the dates for 2000 for
1123# the third time in just over a year and have set new dates for the
1124# years 2001-2004 as well.
1125#
1126# The official announcement for the start date of 2000 can be viewed at:
1127#
bc95ec93 1128# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz
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MD
1129#
1130# The official announcement for the end date of 2000 and the dates
1131# for the years 2001-2004 can be viewed at:
1132#
bc95ec93 1133# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz
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MD
1134
1135# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1136Rule Zion 2000 only - Apr 14 2:00 1:00 D
1137Rule Zion 2000 only - Oct 6 1:00 0 S
1138Rule Zion 2001 only - Apr 9 1:00 1:00 D
1139Rule Zion 2001 only - Sep 24 1:00 0 S
1140Rule Zion 2002 only - Mar 29 1:00 1:00 D
1141Rule Zion 2002 only - Oct 7 1:00 0 S
1142Rule Zion 2003 only - Mar 28 1:00 1:00 D
1143Rule Zion 2003 only - Oct 3 1:00 0 S
1144Rule Zion 2004 only - Apr 7 1:00 1:00 D
1145Rule Zion 2004 only - Sep 22 1:00 0 S
1146
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SW
1147# The proposed law agreed upon by the Knesset Interior Committee on
1148# 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the
1149# last Friday before April 2nd (i.e. the last Friday in March or April
1150# 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday
1151# night _before_ the fast of Yom Kippur.
1152#
1153# Those who can read Hebrew can view the announcement at:
1154#
1155# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps
1156
1157# From Paul Eggert (2005-02-22):
1158# I used Ephraim Silverberg's dst-israel.el program
1159# <ftp://ftp.cs.huji.ac.il/pub/tz/software/dst-israel.el> (2005-02-20)
1160# along with Ed Reingold's cal-hebrew in GNU Emacs 21.4,
1161# to generate the transitions in this list.
1162# (I replaced "lastFri" with "Fri>=26" by hand.)
1163# The spring transitions below all correspond to the following Rule:
1164#
1165# Rule Zion 2005 max - Mar Fri>=26 2:00 1:00 D
1166#
1167# but older zic implementations (e.g., Solaris 8) do not support
1168# "Fri>=26" to mean April 1 in years like 2005, so for now we list the
1169# springtime transitions explicitly.
1170
1171# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1172Rule Zion 2005 only - Apr 1 2:00 1:00 D
1173Rule Zion 2005 only - Oct 9 2:00 0 S
1174Rule Zion 2006 2010 - Mar Fri>=26 2:00 1:00 D
1175Rule Zion 2006 only - Oct 1 2:00 0 S
1176Rule Zion 2007 only - Sep 16 2:00 0 S
1177Rule Zion 2008 only - Oct 5 2:00 0 S
1178Rule Zion 2009 only - Sep 27 2:00 0 S
1179Rule Zion 2010 only - Sep 12 2:00 0 S
1180Rule Zion 2011 only - Apr 1 2:00 1:00 D
1181Rule Zion 2011 only - Oct 2 2:00 0 S
1182Rule Zion 2012 2015 - Mar Fri>=26 2:00 1:00 D
1183Rule Zion 2012 only - Sep 23 2:00 0 S
1184Rule Zion 2013 only - Sep 8 2:00 0 S
1185Rule Zion 2014 only - Sep 28 2:00 0 S
1186Rule Zion 2015 only - Sep 20 2:00 0 S
1187Rule Zion 2016 only - Apr 1 2:00 1:00 D
1188Rule Zion 2016 only - Oct 9 2:00 0 S
1189Rule Zion 2017 2021 - Mar Fri>=26 2:00 1:00 D
1190Rule Zion 2017 only - Sep 24 2:00 0 S
1191Rule Zion 2018 only - Sep 16 2:00 0 S
1192Rule Zion 2019 only - Oct 6 2:00 0 S
1193Rule Zion 2020 only - Sep 27 2:00 0 S
1194Rule Zion 2021 only - Sep 12 2:00 0 S
1195Rule Zion 2022 only - Apr 1 2:00 1:00 D
1196Rule Zion 2022 only - Oct 2 2:00 0 S
1197Rule Zion 2023 2032 - Mar Fri>=26 2:00 1:00 D
1198Rule Zion 2023 only - Sep 24 2:00 0 S
1199Rule Zion 2024 only - Oct 6 2:00 0 S
1200Rule Zion 2025 only - Sep 28 2:00 0 S
1201Rule Zion 2026 only - Sep 20 2:00 0 S
1202Rule Zion 2027 only - Oct 10 2:00 0 S
1203Rule Zion 2028 only - Sep 24 2:00 0 S
1204Rule Zion 2029 only - Sep 16 2:00 0 S
1205Rule Zion 2030 only - Oct 6 2:00 0 S
1206Rule Zion 2031 only - Sep 21 2:00 0 S
1207Rule Zion 2032 only - Sep 12 2:00 0 S
1208Rule Zion 2033 only - Apr 1 2:00 1:00 D
1209Rule Zion 2033 only - Oct 2 2:00 0 S
1210Rule Zion 2034 2037 - Mar Fri>=26 2:00 1:00 D
1211Rule Zion 2034 only - Sep 17 2:00 0 S
1212Rule Zion 2035 only - Oct 7 2:00 0 S
1213Rule Zion 2036 only - Sep 28 2:00 0 S
1214Rule Zion 2037 only - Sep 13 2:00 0 S
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MD
1215
1216# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1217Zone Asia/Jerusalem 2:20:56 - LMT 1880
1218 2:20:40 - JMT 1918 # Jerusalem Mean Time?
1219 2:00 Zion I%sT
1220
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MD
1221
1222
1223###############################################################################
1224
1225# Japan
1226
1227# `9:00' and `JST' is from Guy Harris.
1228
9ffe4b14 1229# From Paul Eggert (1995-03-06):
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MD
1230# Today's _Asahi Evening News_ (page 4) reports that Japan had
1231# daylight saving between 1948 and 1951, but ``the system was discontinued
1232# because the public believed it would lead to longer working hours.''
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SW
1233
1234# From Mayumi Negishi in the 2005-08-10 Japan Times
1235# <http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm>:
1236# Occupation authorities imposed daylight-saving time on Japan on
1237# [1948-05-01].... But lack of prior debate and the execution of
1238# daylight-saving time just three days after the bill was passed generated
1239# deep hatred of the concept.... The Diet unceremoniously passed a bill to
1240# dump the unpopular system in October 1951, less than a month after the San
1241# Francisco Peace Treaty was signed. (A government poll in 1951 showed 53%
1242# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who
1243# wanted to keep it.)
1244
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SW
1245# From Paul Eggert (2006-03-22):
1246# Shanks & Pottenger write that DST in Japan during those years was as follows:
984263bc 1247# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
9ffe4b14
SW
1248Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
1249Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
1250Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
1251Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
1252# but the only locations using it (for birth certificates, presumably, since
bd7414aa 1253# their audience is astrologers) were US military bases. For now, assume
9ffe4b14
SW
1254# that for most purposes daylight-saving time was observed; otherwise, what
1255# would have been the point of the 1951 poll?
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MD
1256
1257# From Hideyuki Suzuki (1998-11-09):
1258# 'Tokyo' usually stands for the former location of Tokyo Astronomical
1259# Observatory: E 139 44' 40".90 (9h 18m 58s.727), N 35 39' 16".0.
1260# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
1261# edited by National Astronomical Observatory of Japan....
1262# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
1263# The law is enacted on 1886-07-07.
1264
1265# From Hideyuki Suzuki (1998-11-16):
1266# The ordinance No. 51 (1886) established "standard time" in Japan,
1267# which stands for the time on E 135 degree.
1268# In the ordinance No. 167 (1895), "standard time" was renamed to "central
1269# standard time". And the same ordinance also established "western standard
1270# time", which stands for the time on E 120 degree.... But "western standard
1271# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
1272# 167, there is no mention regarding for what place western standard time is
1273# standard....
1274#
1275# I wrote "ordinance" above, but I don't know how to translate.
1276# In Japanese it's "chokurei", which means ordinance from emperor.
1277
bd7414aa
SW
1278# Shanks & Pottenger claim JST in use since 1896, and that a few
1279# places (e.g. Ishigaki) use +0800; go with Suzuki. Guess that all
1280# ordinances took effect on Jan 1.
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MD
1281
1282# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1283Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
1284 9:00 - JST 1896
1285 9:00 - CJT 1938
9ffe4b14 1286 9:00 Japan J%sT
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MD
1287# Since 1938, all Japanese possessions have been like Asia/Tokyo.
1288
1289# Jordan
1290#
1291# From <a href="http://star.arabia.com/990701/JO9.html">
1292# Jordan Week (1999-07-01) </a> via Steffen Thorsen (1999-09-09):
1293# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
1294# in accordance with the government's decision to implement summer time
1295# all year round.
1296#
1297# From <a href="http://star.arabia.com/990930/JO9.html">
1298# Jordan Week (1999-09-30) </a> via Steffen Thorsen (1999-11-09):
1299# Winter time starts today Thursday, 30 September. Clocks will be turned back
1300# by one hour. This is the latest government decision and it's final!
1301# The decision was taken because of the increase in working hours in
1302# government's departments from six to seven hours.
1303#
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SW
1304# From Paul Eggert (2005-11-22):
1305# Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com.
1306#
bd7414aa
SW
1307# From Steffen Thorsen (2005-11-23):
1308# For Jordan I have received multiple independent user reports every year
1309# about DST end dates, as the end-rule is different every year.
1310#
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SW
1311# From Steffen Thorsen (2006-10-01), after a heads-up from Hilal Malawi:
1312# http://www.petranews.gov.jo/nepras/2006/Sep/05/4000.htm
1313# "Jordan will switch to winter time on Friday, October 27".
1314#
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SW
1315
1316# From Phil Pizzey (2009-04-02):
1317# ...I think I may have spotted an error in the timezone data for
1318# Jordan.
1319# The current (2009d) asia file shows Jordan going to daylight
1320# saving
1321# time on the last Thursday in March.
1322#
1323# Rule Jordan 2000 max - Mar lastThu 0:00s 1:00 S
1324#
1325# However timeanddate.com, which I usually find reliable, shows Jordan
1326# going to daylight saving time on the last Friday in March since 2002.
1327# Please see
1328# <a href="http://www.timeanddate.com/worldclock/timezone.html?n=11">
1329# http://www.timeanddate.com/worldclock/timezone.html?n=11
1330# </a>
1331
1332# From Steffen Thorsen (2009-04-02):
1333# This single one might be good enough, (2009-03-24, Arabic):
1334# <a href="http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279">
1335# http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279
1336# </a>
1337#
1338# Google's translation:
1339#
1340# > The Council of Ministers decided in 2002 to adopt the principle of timely
1341# > submission of the summer at 60 minutes as of midnight on the last Thursday
1342# > of the month of March of each year.
1343#
1344# So - this means the midnight between Thursday and Friday since 2002.
1345
1346# From Arthur David Olson (2009-04-06):
1347# We still have Jordan switching to DST on Thursdays in 2000 and 2001.
1348
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1349# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1350Rule Jordan 1973 only - Jun 6 0:00 1:00 S
1351Rule Jordan 1973 1975 - Oct 1 0:00 0 -
1352Rule Jordan 1974 1977 - May 1 0:00 1:00 S
1353Rule Jordan 1976 only - Nov 1 0:00 0 -
1354Rule Jordan 1977 only - Oct 1 0:00 0 -
1355Rule Jordan 1978 only - Apr 30 0:00 1:00 S
1356Rule Jordan 1978 only - Sep 30 0:00 0 -
1357Rule Jordan 1985 only - Apr 1 0:00 1:00 S
1358Rule Jordan 1985 only - Oct 1 0:00 0 -
1359Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S
1360Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
1361Rule Jordan 1989 only - May 8 0:00 1:00 S
1362Rule Jordan 1990 only - Apr 27 0:00 1:00 S
1363Rule Jordan 1991 only - Apr 17 0:00 1:00 S
1364Rule Jordan 1991 only - Sep 27 0:00 0 -
1365Rule Jordan 1992 only - Apr 10 0:00 1:00 S
1366Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 -
1367Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S
1368Rule Jordan 1994 only - Sep Fri>=15 0:00 0 -
1369Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 -
1370Rule Jordan 1999 only - Jul 1 0:00s 1:00 S
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1371Rule Jordan 1999 2002 - Sep lastFri 0:00s 0 -
1372Rule Jordan 2000 2001 - Mar lastThu 0:00s 1:00 S
3dbe7164 1373Rule Jordan 2002 max - Mar lastThu 24:00 1:00 S
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1374Rule Jordan 2003 only - Oct 24 0:00s 0 -
1375Rule Jordan 2004 only - Oct 15 0:00s 0 -
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1376Rule Jordan 2005 only - Sep lastFri 0:00s 0 -
1377Rule Jordan 2006 max - Oct lastFri 0:00s 0 -
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1378# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1379Zone Asia/Amman 2:23:44 - LMT 1931
1380 2:00 Jordan EE%sT
1381
9ffe4b14 1382
984263bc 1383# Kazakhstan
9ffe4b14 1384
984263bc 1385# From Paul Eggert (1996-11-22):
9ffe4b14 1386# Andrew Evtichov (1996-04-13) writes that Kazakhstan
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1387# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
1388# and Aqtau (formerly Shevchenko) are the largest cities in their zones.
1389# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
1390# IATA SSIM mentions a third time zone in Kazakhstan.
9ffe4b14 1391
bd7414aa 1392# From Paul Eggert (2006-03-22):
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MD
1393# German Iofis, ELSI, Almaty (2001-10-09) reports that Kazakhstan uses
1394# RussiaAsia rules, instead of switching at 00:00 as the IATA has it.
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SW
1395# Go with Shanks & Pottenger, who have them always using RussiaAsia rules.
1396# Also go with the following claims of Shanks & Pottenger:
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1397#
1398# - Kazakhstan did not observe DST in 1991.
1399# - Qyzylorda switched from +5:00 to +6:00 on 1992-01-19 02:00.
1400# - Oral switched from +5:00 to +4:00 in spring 1989.
9ffe4b14 1401
bc95ec93
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1402# <a href="http://www.kazsociety.org.uk/news/2005/03/30.htm">
1403# From Kazakhstan Embassy's News Bulletin #11 (2005-03-21):
1404# </a>
1405# The Government of Kazakhstan passed a resolution March 15 abolishing
1406# daylight saving time citing lack of economic benefits and health
1407# complications coupled with a decrease in productivity.
1408#
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SW
1409# From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28):
1410# ... what happened was that the former Kazakhstan Eastern time zone
1411# was "blended" with the Central zone. Therefore, Kazakhstan now has
1412# two time zones, and difference between them is one hour. The zone
1413# closer to UTC is the former Western zone (probably still called the
1414# same), encompassing four provinces in the west: Aqtobe, Atyrau,
1415# Mangghystau, and West Kazakhstan. The other zone encompasses
1416# everything else.... I guess that would make Kazakhstan time zones
1417# de jure UTC+5 and UTC+6 respectively.
1418
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1419#
1420# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1421#
1422# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan
1423Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
1424 5:00 - ALMT 1930 Jun 21 # Alma-Ata Time
1425 6:00 RussiaAsia ALM%sT 1991
1426 6:00 - ALMT 1992
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1427 6:00 RussiaAsia ALM%sT 2005 Mar 15
1428 6:00 - ALMT
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1429# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.)
1430Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2
1431 4:00 - KIZT 1930 Jun 21 # Kizilorda Time
1432 5:00 - KIZT 1981 Apr 1
1433 5:00 1:00 KIZST 1981 Oct 1
1434 6:00 - KIZT 1982 Apr 1
1435 5:00 RussiaAsia KIZ%sT 1991
1436 5:00 - KIZT 1991 Dec 16 # independence
1437 5:00 - QYZT 1992 Jan 19 2:00
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1438 6:00 RussiaAsia QYZ%sT 2005 Mar 15
1439 6:00 - QYZT
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1440# Aqtobe (aka Aktobe, formerly Akt'ubinsk)
1441Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
1442 4:00 - AKTT 1930 Jun 21 # Aktyubinsk Time
1443 5:00 - AKTT 1981 Apr 1
1444 5:00 1:00 AKTST 1981 Oct 1
1445 6:00 - AKTT 1982 Apr 1
1446 5:00 RussiaAsia AKT%sT 1991
1447 5:00 - AKTT 1991 Dec 16 # independence
bc95ec93
SW
1448 5:00 RussiaAsia AQT%sT 2005 Mar 15 # Aqtobe Time
1449 5:00 - AQTT
984263bc
MD
1450# Mangghystau
1451# Aqtau was not founded until 1963, but it represents an inhabited region,
1452# so include time stamps before 1963.
1453Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2
1454 4:00 - FORT 1930 Jun 21 # Fort Shevchenko T
1455 5:00 - FORT 1963
1456 5:00 - SHET 1981 Oct 1 # Shevchenko Time
1457 6:00 - SHET 1982 Apr 1
1458 5:00 RussiaAsia SHE%sT 1991
1459 5:00 - SHET 1991 Dec 16 # independence
ba5ba9da 1460 5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time
bc95ec93 1461 4:00 RussiaAsia AQT%sT 2005 Mar 15
9ffe4b14 1462 5:00 - AQTT
984263bc
MD
1463# West Kazakhstan
1464Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk
1465 4:00 - URAT 1930 Jun 21 # Ural'sk time
1466 5:00 - URAT 1981 Apr 1
1467 5:00 1:00 URAST 1981 Oct 1
1468 6:00 - URAT 1982 Apr 1
1469 5:00 RussiaAsia URA%sT 1989 Mar 26 2:00
1470 4:00 RussiaAsia URA%sT 1991
1471 4:00 - URAT 1991 Dec 16 # independence
bc95ec93 1472 4:00 RussiaAsia ORA%sT 2005 Mar 15 # Oral Time
9ffe4b14 1473 5:00 - ORAT
984263bc
MD
1474
1475# Kyrgyzstan (Kirgizstan)
bd7414aa 1476# Transitions through 1991 are from Shanks & Pottenger.
9ffe4b14
SW
1477
1478# From Paul Eggert (2005-08-15):
1479# According to an article dated today in the Kyrgyzstan Development Gateway
1480# <http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml>
1481# Kyrgyzstan is canceling the daylight saving time system. I take the article
1482# to mean that they will leave their clocks at 6 hours ahead of UTC.
e1e23b59
SW
1483# From Malik Abdugaliev (2005-09-21):
1484# Our government cancels daylight saving time 6th of August 2005.
1485# From 2005-08-12 our GMT-offset is +6, w/o any daylight saving.
9ffe4b14 1486
984263bc 1487# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
e1e23b59
SW
1488Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S
1489Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 -
1490Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S
1491Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 -
984263bc
MD
1492# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1493Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
1494 5:00 - FRUT 1930 Jun 21 # Frunze Time
1495 6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
1496 5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
e1e23b59
SW
1497 5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time
1498 6:00 - KGT
984263bc
MD
1499
1500###############################################################################
1501
1502# Korea (North and South)
1503
bd7414aa
SW
1504# From Annie I. Bang (2006-07-10) in
1505# <http://www.koreaherald.co.kr/SITE/data/html_dir/2006/07/10/200607100012.asp>:
1506# The Ministry of Commerce, Industry and Energy has already
1507# commissioned a research project [to reintroduce DST] and has said
1508# the system may begin as early as 2008.... Korea ran a daylight
1509# saving program from 1949-61 but stopped it during the 1950-53 Korean War.
984263bc 1510
bd7414aa 1511# From Shanks & Pottenger:
984263bc
MD
1512# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1513Rule ROK 1960 only - May 15 0:00 1:00 D
1514Rule ROK 1960 only - Sep 13 0:00 0 S
bd7414aa
SW
1515Rule ROK 1987 1988 - May Sun>=8 0:00 1:00 D
1516Rule ROK 1987 1988 - Oct Sun>=8 0:00 0 S
984263bc
MD
1517
1518# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1519Zone Asia/Seoul 8:27:52 - LMT 1890
1520 8:30 - KST 1904 Dec
1521 9:00 - KST 1928
1522 8:30 - KST 1932
1523 9:00 - KST 1954 Mar 21
1524 8:00 ROK K%sT 1961 Aug 10
1525 8:30 - KST 1968 Oct
1526 9:00 ROK K%sT
1527Zone Asia/Pyongyang 8:23:00 - LMT 1890
1528 8:30 - KST 1904 Dec
1529 9:00 - KST 1928
1530 8:30 - KST 1932
1531 9:00 - KST 1954 Mar 21
1532 8:00 - KST 1961 Aug 10
1533 9:00 - KST
1534
1535###############################################################################
1536
1537# Kuwait
1538# Zone NAME GMTOFF RULES FORMAT [UNTIL]
f2892a6d
SW
1539# From the Arab Times (2007-03-14):
1540# The Civil Service Commission (CSC) has approved a proposal forwarded
1541# by MP Ahmad Baqer on implementing the daylight saving time (DST) in
1542# Kuwait starting from April until the end of Sept this year, reports Al-Anba.
1543# <http://www.arabtimesonline.com/arabtimes/kuwait/Viewdet.asp?ID=9950>.
1544# From Paul Eggert (2007-03-29):
1545# We don't know the details, or whether the approval means it'll happen,
1546# so for now we assume no DST.
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MD
1547Zone Asia/Kuwait 3:11:56 - LMT 1950
1548 3:00 - AST
1549
1550# Laos
1551# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1552Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan
1553 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
1554 7:00 - ICT 1912 May
1555 8:00 - ICT 1931 May
1556 7:00 - ICT
1557
1558# Lebanon
1559# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1560Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
1561Rule Lebanon 1920 only - Oct 25 0:00 0 -
1562Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
1563Rule Lebanon 1921 only - Oct 3 0:00 0 -
1564Rule Lebanon 1922 only - Mar 26 0:00 1:00 S
1565Rule Lebanon 1922 only - Oct 8 0:00 0 -
1566Rule Lebanon 1923 only - Apr 22 0:00 1:00 S
1567Rule Lebanon 1923 only - Sep 16 0:00 0 -
1568Rule Lebanon 1957 1961 - May 1 0:00 1:00 S
1569Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
1570Rule Lebanon 1972 only - Jun 22 0:00 1:00 S
1571Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
1572Rule Lebanon 1973 1977 - May 1 0:00 1:00 S
1573Rule Lebanon 1978 only - Apr 30 0:00 1:00 S
1574Rule Lebanon 1978 only - Sep 30 0:00 0 -
1575Rule Lebanon 1984 1987 - May 1 0:00 1:00 S
1576Rule Lebanon 1984 1991 - Oct 16 0:00 0 -
1577Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
1578Rule Lebanon 1989 only - May 10 0:00 1:00 S
1579Rule Lebanon 1990 1992 - May 1 0:00 1:00 S
1580Rule Lebanon 1992 only - Oct 4 0:00 0 -
1581Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
1582Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
1583Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
1584# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1585Zone Asia/Beirut 2:22:00 - LMT 1880
1586 2:00 Lebanon EE%sT
1587
1588# Malaysia
1589# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1590Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer
1591Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
1592#
984263bc 1593# peninsular Malaysia
ba5ba9da
JR
1594# The data here are taken from Mok Ly Yng (2003-10-30)
1595# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
1596# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1597Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1
1598 6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
1599 7:00 - MALT 1933 Jan 1 # Malaya Time
1600 7:00 0:20 MALST 1936 Jan 1
1601 7:20 - MALT 1941 Sep 1
1602 7:30 - MALT 1942 Feb 16
1603 9:00 - JST 1945 Sep 12
1604 7:30 - MALT 1982 Jan 1
984263bc
MD
1605 8:00 - MYT # Malaysia Time
1606# Sabah & Sarawak
bd7414aa
SW
1607# From Paul Eggert (2006-03-22):
1608# The data here are mostly from Shanks & Pottenger, but the 1942, 1945 and 1982
ba5ba9da
JR
1609# transition dates are from Mok Ly Yng.
1610# Zone NAME GMTOFF RULES FORMAT [UNTIL]
984263bc
MD
1611Zone Asia/Kuching 7:21:20 - LMT 1926 Mar
1612 7:30 - BORT 1933 # Borneo Time
ba5ba9da
JR
1613 8:00 NBorneo BOR%sT 1942 Feb 16
1614 9:00 - JST 1945 Sep 12
1615 8:00 - BORT 1982 Jan 1
984263bc
MD
1616 8:00 - MYT
1617
1618# Maldives
1619# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1620Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
1621 4:54:00 - MMT 1960 # Male Mean Time
1622 5:00 - MVT # Maldives Time
1623
1624# Mongolia
1625
bd7414aa
SW
1626# Shanks & Pottenger say that Mongolia has three time zones, but
1627# usno1995 and the CIA map Standard Time Zones of the World (2005-03)
984263bc
MD
1628# both say that it has just one.
1629
1630# From Oscar van Vlijmen (1999-12-11):
1631# <a href="http://www.mongoliatourism.gov.mn/general.htm">
1632# General Information Mongolia
1633# </a> (1999-09)
1634# "Time: Mongolia has two time zones. Three westernmost provinces of
1635# Bayan-Ulgii, Uvs, and Hovd are one hour earlier than the capital city, and
1636# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus
1637# eight hours."
1638
1639# From Rives McDow (1999-12-13):
1640# Mongolia discontinued the use of daylight savings time in 1999; 1998
1641# being the last year it was implemented. The dates of implementation I am
1642# unsure of, but most probably it was similar to Russia, except for the time
1643# of implementation may have been different....
1644# Some maps in the past have indicated that there was an additional time
1645# zone in the eastern part of Mongolia, including the provinces of Dornod,
1646# Suhbaatar, and possibly Khentij.
1647
1648# From Paul Eggert (1999-12-15):
1649# Naming and spelling is tricky in Mongolia.
1650# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
1651# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
1652# and sometimes Jirgalanta (with variant spellings), but the name Hovd
1653# is good enough for our purposes.
1654
1655# From Rives McDow (2001-05-13):
1656# In addition to Mongolia starting daylight savings as reported earlier
1657# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28),
1658# there are three time zones.
1659#
1660# Provinces [at 7:00]: Bayan-ulgii, Uvs, Khovd, Zavkhan, Govi-Altai
1661# Provinces [at 8:00]: Khovsgol, Bulgan, Arkhangai, Khentii, Tov,
1662# Bayankhongor, Ovorkhangai, Dundgovi, Dornogovi, Omnogovi
1663# Provinces [at 9:00]: Dornod, Sukhbaatar
1664#
1665# [The province of Selenge is omitted from the above lists.]
1666
9ffe4b14 1667# From Ganbold Ts., Ulaanbaatar (2004-04-17):
ba5ba9da
JR
1668# Daylight saving occurs at 02:00 local time last Saturday of March.
1669# It will change back to normal at 02:00 local time last Saturday of
1670# September.... As I remember this rule was changed in 2001.
1671#
1672# From Paul Eggert (2004-04-17):
1673# For now, assume Rives McDow's informant got confused about Friday vs
1674# Saturday, and that his 2001 dates should have 1 added to them.
1675
9ffe4b14
SW
1676# From Paul Eggert (2005-07-26):
1677# We have wildly conflicting information about Mongolia's time zones.
1678# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says
1679# there is only one time zone and that DST is observed, citing Microsoft
1680# Windows XP as the source. Risto Nykanen (2005-05-16) reports that
1681# travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST.
1682# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in
1683# Washington, DC says there are two time zones, with DST observed.
1684# He also found
1685# <http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1&>
1686# which also says that there is DST, and which has a comment by "Toddius"
1687# (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones.
1688# The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT
1689# and some Eastern provinces are +9 GMT but Sukhbaatar Aimag is SUHK +8.5 GMT.
1690# The SUKH timezone is new this year, it is one of the few things the
1691# parliament passed during the tumultuous winter session."
1692# For now, let's ignore this information, until we have more confirmation.
1693
8393cd87
SW
1694# From Ganbold Ts. (2007-02-26):
1695# Parliament of Mongolia has just changed the daylight-saving rule in February.
1696# They decided not to adopt daylight-saving time....
1697# http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742
1698
fcf6e80e
SW
1699# From Deborah Goldsmith (2008-03-30):
1700# We received a bug report claiming that the tz database UTC offset for
1701# Asia/Choibalsan (GMT+09:00) is incorrect, and that it should be GMT
1702# +08:00 instead. Different sources appear to disagree with the tz
1703# database on this, e.g.:
1704#
1705# <a href="http://www.timeanddate.com/worldclock/city.html?n=1026">
1706# http://www.timeanddate.com/worldclock/city.html?n=1026
1707# </a>
1708# <a href="http://www.worldtimeserver.com/current_time_in_MN.aspx">
1709# http://www.worldtimeserver.com/current_time_in_MN.aspx
1710# </a>
1711#
1712# both say GMT+08:00.
1713
1714# From Steffen Thorsen (2008-03-31):
1715# eznis airways, which operates several domestic flights, has a flight
1716# schedule here:
3f249718 1717# <a href="http://www.eznis.com/Container.jsp?id=112">
fcf6e80e
SW
1718# http://www.eznis.com/Container.jsp?id=112
1719# </a>
1720# (click the English flag for English)
1721#
1722# There it appears that flights between Choibalsan and Ulaanbatar arrive
1723# about 1:35 - 1:50 hours later in local clock time, no matter the
1724# direction, while Ulaanbaatar-Khvod takes 2 hours in the Eastern
1725# direction and 3:35 back, which indicates that Ulaanbatar and Khvod are
1726# in different time zones (like we know about), while Choibalsan and
1727# Ulaanbatar are in the same time zone (correction needed).
1728
1729# From Arthur David Olson (2008-05-19):
1730# Assume that Choibalsan is indeed offset by 8:00.
1731# XXX--in the absence of better information, assume that transition
1732# was at the start of 2008-03-31 (the day of Steffen Thorsen's report);
1733# this is almost surely wrong.
1734
984263bc
MD
1735# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1736Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S
1737Rule Mongol 1983 only - Oct 1 0:00 0 -
bd7414aa
SW
1738# Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00,
1739# but McDow says the 2001 switches occurred at 02:00. Also, IATA SSIM
1740# (1996-09) says 1996-10-25. Go with Shanks & Pottenger through 1998.
1741#
1742# Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches
1743# in Choibalsan (more precisely, in Dornod and Sukhbaatar) took place
1744# at 02:00 standard time, not at 00:00 local time as in the rest of
1745# the country. That would be odd, and possibly is a result of their
1746# correction of 02:00 (in the previous edition) not being done correctly
1747# in the latest edition; so ignore it for now.
1748
1749Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 S
1750Rule Mongol 1984 1998 - Sep lastSun 0:00 0 -
984263bc 1751# IATA SSIM (1999-09) says Mongolia no longer observes DST.
ba5ba9da 1752Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S
8393cd87
SW
1753Rule Mongol 2001 2006 - Sep lastSat 2:00 0 -
1754Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S
984263bc
MD
1755
1756# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1757# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
1758Zone Asia/Hovd 6:06:36 - LMT 1905 Aug
1759 6:00 - HOVT 1978 # Hovd Time
1760 7:00 Mongol HOV%sT
1761# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga
1762Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug
1763 7:00 - ULAT 1978 # Ulaanbaatar Time
1764 8:00 Mongol ULA%sT
1765# Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan,
1766# Choybalsan, Sanbejse, Tchoibalsan
1767Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug
1768 7:00 - ULAT 1978
1769 8:00 - ULAT 1983 Apr
fcf6e80e
SW
1770 9:00 Mongol CHO%sT 2008 Mar 31 # Choibalsan Time
1771 8:00 Mongol CHO%sT
984263bc
MD
1772
1773# Nepal
1774# Zone NAME GMTOFF RULES FORMAT [UNTIL]
09695390 1775Zone Asia/Kathmandu 5:41:16 - LMT 1920
984263bc
MD
1776 5:30 - IST 1986
1777 5:45 - NPT # Nepal Time
1778
1779# Oman
1780# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1781Zone Asia/Muscat 3:54:20 - LMT 1920
1782 4:00 - GST
1783
1784# Pakistan
1785
1786# From Rives McDow (2002-03-13):
1787# I have been advised that Pakistan has decided to adopt dst on a
1788# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
1789# and ending at 00:01 local time October 6, 2002. This is what I was
1790# told, but I believe that the actual time of change may be 00:00; the
1791# 00:01 was to make it clear which day it was on.
1792
1793# From Paul Eggert (2002-03-15):
1794# Jesper Norgaard found this URL:
1795# http://www.pak.gov.pk/public/news/app/app06_dec.htm
1796# (dated 2001-12-06) which says that the Cabinet adopted a scheme "to
1797# advance the clocks by one hour on the night between the first
1798# Saturday and Sunday of April and revert to the original position on
1799# 15th October each year". This agrees with McDow's 04-07 at 00:00,
1800# but disagrees about the October transition, and makes it sound like
1801# it's not on a trial basis. Also, the "between the first Saturday
1802# and Sunday of April" phrase, if taken literally, means that the
1803# transition takes place at 00:00 on the first Sunday on or after 04-02.
1804
1805# From Paul Eggert (2003-02-09):
1806# DAWN <http://www.dawn.com/2002/10/06/top13.htm> reported on 2002-10-05
1807# that 2002 DST ended that day at midnight. Go with McDow for now.
1808
1809# From Steffen Thorsen (2003-03-14):
1810# According to http://www.dawn.com/2003/03/07/top15.htm
1811# there will be no DST in Pakistan this year:
1812#
1813# ISLAMABAD, March 6: Information and Media Development Minister Sheikh
1814# Rashid Ahmed on Thursday said the cabinet had reversed a previous
1815# decision to advance clocks by one hour in summer and put them back by
1816# one hour in winter with the aim of saving light hours and energy.
1817#
1818# The minister told a news conference that the experiment had rather
1819# shown 8 per cent higher consumption of electricity.
1820
fcf6e80e 1821# From Alex Krivenyshev (2008-05-15):
ef5158c8
SW
1822#
1823# Here is an article that Pakistan plan to introduce Daylight Saving Time
fcf6e80e 1824# on June 1, 2008 for 3 months.
ef5158c8
SW
1825#
1826# "... The federal cabinet on Wednesday announced a new conservation plan to help
1827# reduce load shedding by approving the closure of commercial centres at 9pm and
1828# moving clocks forward by one hour for the next three months.
fcf6e80e 1829# ...."
ef5158c8 1830#
fcf6e80e
SW
1831# <a href="http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html">
1832# http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html
1833# </a>
1834# OR
1835# <a href="http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4">
1836# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4
1837# </a>
1838
1839# From Arthur David Olson (2008-05-19):
1840# XXX--midnight transitions is a guess; 2008 only is a guess.
984263bc 1841
234dfcd0
SW
1842# From Alexander Krivenyshev (2008-08-28):
1843# Pakistan government has decided to keep the watches one-hour advanced
1844# for another 2 months--plan to return to Standard Time on October 31
1845# instead of August 31.
1846#
1847# <a href="http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html">
1848# http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html
1849# </a>
1850# OR
1851# <a href="http://dailymailnews.com/200808/28/news/dmbrn03.html">
1852# http://dailymailnews.com/200808/28/news/dmbrn03.html
1853# </a>
1854
da2a65f2
SW
1855# From Alexander Krivenyshev (2009-04-08):
1856# Based on previous media reports that "... proposed plan to
1857# advance clocks by one hour from May 1 will cause disturbance
1858# to the working schedules rather than bringing discipline in
1859# official working."
1860# <a href="http://www.thenews.com.pk/daily_detail.asp?id=171280">
1861# http://www.thenews.com.pk/daily_detail.asp?id=171280
1862# </a>
1863#
1864# recent news that instead of May 2009 - Pakistan plan to
1865# introduce DST from April 15, 2009
1866#
1867# FYI: Associated Press Of Pakistan
1868# April 08, 2009
1869# Cabinet okays proposal to advance clocks by one hour from April 15
1870# <a href="http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1">
1871# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1
1872# </a>
1873#
1874# or
1875#
1876# <a href="http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html">
1877# http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html
1878# </a>
1879#
1880# ....
1881# The Federal Cabinet on Wednesday approved the proposal to
1882# advance clocks in the country by one hour from April 15 to
1883# conserve energy"
1884
0d01c093
SW
1885# From Steffen Thorsen (2009-09-17):
1886# "The News International," Pakistan reports that: "The Federal
1887# Government has decided to restore the previous time by moving the
1888# clocks backward by one hour from October 1. A formal announcement to
1889# this effect will be made after the Prime Minister grants approval in
1890# this regard."
1891# <a href="http://www.thenews.com.pk/updates.asp?id=87168">
1892# http://www.thenews.com.pk/updates.asp?id=87168
1893# </a>
da2a65f2 1894
83c88d65
SW
1895# From Alexander Krivenyshev (2009-09-28):
1896# According to Associated Press Of Pakistan, it is confirmed that
1897# Pakistan clocks across the country would be turned back by an hour from October
1898# 1, 2009.
1899#
1900# "Clocks to go back one hour from 1 Oct"
1901# <a href="http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2">
1902# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2
1903# </a>
1904# or
1905# <a href="http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm">
1906# http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm
1907# </a>
1908
1909# From Steffen Thorsen (2009-09-29):
1910# Alexander Krivenyshev wrote:
1911# > According to Associated Press Of Pakistan, it is confirmed that
1912# > Pakistan clocks across the country would be turned back by an hour from October
1913# > 1, 2009.
1914#
1915# Now they seem to have changed their mind, November 1 is the new date:
1916# <a href="http://www.thenews.com.pk/top_story_detail.asp?Id=24742">
1917# http://www.thenews.com.pk/top_story_detail.asp?Id=24742
1918# </a>
1919# "The country's clocks will be reversed by one hour on November 1.
1920# Officials of Federal Ministry for Interior told this to Geo News on
1921# Monday."
1922#
1923# And more importantly, it seems that these dates will be kept every year:
1924# "It has now been decided that clocks will be wound forward by one hour
1925# on April 15 and reversed by an hour on November 1 every year without
1926# obtaining prior approval, the officials added."
1927#
1928# We have confirmed this year's end date with both with the Ministry of
1929# Water and Power and the Pakistan Electric Power Company:
1930# <a href="http://www.timeanddate.com/news/time/pakistan-ends-dst09.html">
1931# http://www.timeanddate.com/news/time/pakistan-ends-dst09.html
1932# </a>
1933
1934# From Christoph Goehre (2009-10-01):
1935# [T]he German Consulate General in Karachi reported me today that Pakistan
1936# will go back to standard time on 1st of November.
1937
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1938# From Steffen Thorsen (2010-03-26):
1939# Steffen Thorsen wrote:
1940# > On Thursday (2010-03-25) it was announced that DST would start in
1941# > Pakistan on 2010-04-01.
1942# >
1943# > Then today, the president said that they might have to revert the
1944# > decision if it is not supported by the parliament. So at the time
1945# > being, it seems unclear if DST will be actually observed or not - but
1946# > April 1 could be a more likely date than April 15.
1947# Now, it seems that the decision to not observe DST in final:
1948#
1949# "Govt Withdraws Plan To Advance Clocks"
1950# <a href="http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041">
1951# http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041
1952# </a>
1953#
1954# "People laud PM's announcement to end DST"
1955# <a href="http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2">
1956# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2
1957# </a>
1958
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1959# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1960Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S
1961Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 -
fcf6e80e 1962Rule Pakistan 2008 only - Jun 1 0:00 1:00 S
234dfcd0 1963Rule Pakistan 2008 only - Nov 1 0:00 0 -
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1964Rule Pakistan 2009 only - Apr 15 0:00 1:00 S
1965Rule Pakistan 2009 only - Nov 1 0:00 0 -
1966
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MD
1967# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1968Zone Asia/Karachi 4:28:12 - LMT 1907
1969 5:30 - IST 1942 Sep
1970 5:30 1:00 IST 1945 Oct 15
1971 5:30 - IST 1951 Sep 30
1972 5:00 - KART 1971 Mar 26 # Karachi Time
1973 5:00 Pakistan PK%sT # Pakistan Time
1974
1975# Palestine
1976
9ffe4b14 1977# From Amos Shapir (1998-02-15):
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MD
1978#
1979# From 1917 until 1948-05-15, all of Palestine, including the parts now
1980# known as the Gaza Strip and the West Bank, was under British rule.
1981# Therefore the rules given for Israel for that period, apply there too...
1982#
1983# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
1984# (except a short occupation by Israel from 1956-11 till 1957-03, but no
1985# time zone was affected then). It was never formally annexed to Egypt,
1986# though.
1987#
1988# The rest of Palestine was under Jordanian rule at that time, formally
1989# annexed in 1950 as the West Bank (and the word "Trans" was dropped from
1990# the country's previous name of "the Hashemite Kingdom of the
1991# Trans-Jordan"). So the rules for Jordan for that time apply. Major
1992# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
1993# East Jerusalem.
1994#
1995# Both areas were occupied by Israel in June 1967, but not annexed (except
1996# for East Jerusalem). They were on Israel time since then; there might
1997# have been a Military Governor's order about time zones, but I'm not aware
1998# of any (such orders may have been issued semi-annually whenever summer
1999# time was in effect, but maybe the legal aspect of time was just neglected).
2000#
2001# The Palestinian Authority was established in 1993, and got hold of most
2002# towns in the West Bank and Gaza by 1995. I know that in order to
2003# demonstrate...independence, they have been switching to
2004# summer time and back on a different schedule than Israel's, but I don't
2005# know when this was started, or what algorithm is used (most likely the
2006# Jordanian one).
2007#
2008# To summarize, the table should probably look something like that:
2009#
2010# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
2011# ------------+-----------+-----------+-----------+-----------
2012# Israel | Zion | Zion | Zion | Zion
2013# West bank | Zion | Jordan | Zion | Jordan
2014# Gaza | Zion | Egypt | Zion | Jordan
2015#
2016# I guess more info may be available from the PA's web page (if/when they
2017# have one).
2018
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2019# From Paul Eggert (2006-03-22):
2020# Shanks & Pottenger write that Gaza did not observe DST until 1957, but go
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MD
2021# with Shapir and assume that it observed DST from 1940 through 1947,
2022# and that it used Jordanian rules starting in 1996.
2023# We don't yet need a separate entry for the West Bank, since
2024# the only differences between it and Gaza that we know about
2025# occurred before our cutoff date of 1970.
2026# However, as we get more information, we may need to add entries
2027# for parts of the West Bank as they transitioned from Israel's rules
2028# to Palestine's rules. If you have more info about this, please
2029# send it to tz@elsie.nci.nih.gov for incorporation into future editions.
2030
2031# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
2032# forwarded by Ephraim Silverberg:
2033#
2034# Despite the fact that Israel changed over to daylight savings time
2035# last week, the PLO Authority (PA) has decided not to turn its clocks
2036# one-hour forward at this time. As a sign of independence from Israeli rule,
2037# the PA has decided to implement DST in April.
2038
2039# From Paul Eggert (1999-09-20):
2040# Daoud Kuttab writes in
2041# <a href="http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html">
2042# Holiday havoc
2043# </a> (Jerusalem Post, 1999-04-22) that
2044# the Palestinian National Authority changed to DST on 1999-04-15.
2045# I vaguely recall that they switch back in October (sorry, forgot the source).
2046# For now, let's assume that the spring switch was at 24:00,
2047# and that they switch at 0:00 on the 3rd Fridays of April and October.
2048
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2049# From Paul Eggert (2005-11-22):
2050# Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com.
2051
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2052# From Steffen Thorsen (2005-11-23):
2053# A user from Gaza reported that Gaza made the change early because of
2054# the Ramadan. Next year Ramadan will be even earlier, so I think
2055# there is a good chance next year's end date will be around two weeks
2056# earlier--the same goes for Jordan.
2057
2058# From Steffen Thorsen (2006-08-17):
2059# I was informed by a user in Bethlehem that in Bethlehem it started the
2060# same day as Israel, and after checking with other users in the area, I
2061# was informed that they started DST one day after Israel. I was not
2062# able to find any authoritative sources at the time, nor details if
2063# Gaza changed as well, but presumed Gaza to follow the same rules as
2064# the West Bank.
2065
2066# From Steffen Thorsen (2006-09-26):
2067# according to the Palestine News Network (2006-09-19):
2068# http://english.pnn.ps/index.php?option=com_content&task=view&id=596&Itemid=5
2069# > The Council of Ministers announced that this year its winter schedule
2070# > will begin early, as of midnight Thursday. It is also time to turn
2071# > back the clocks for winter. Friday will begin an hour late this week.
2072# I guess it is likely that next year's date will be moved as well,
2073# because of the Ramadan.
2074
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2075# From Jesper Norgaard Welen (2007-09-18):
2076# According to Steffen Thorsen's web site the Gaza Strip and the rest of the
2077# Palestinian territories left DST early on 13.th. of September at 2:00.
2078
2079# From Paul Eggert (2007-09-20):
2080# My understanding is that Gaza and the West Bank disagree even over when
2081# the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit
2082# surprised if they agreed about DST. But for now, assume they agree.
2083# For lack of better information, predict that future changes will be
2084# the 2nd Thursday of September at 02:00.
2085
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2086# From Alexander Krivenyshev (2008-08-28):
2087# Here is an article, that Mideast running on different clocks at Ramadan.
2088#
2089# Gaza Strip (as Egypt) ended DST at midnight Thursday (Aug 28, 2008), while
2090# the West Bank will end Daylight Saving Time at midnight Sunday (Aug 31, 2008).
2091#
2092# <a href="http://www.guardian.co.uk/world/feedarticle/7759001">
2093# http://www.guardian.co.uk/world/feedarticle/7759001
2094# </a>
2095# <a href="http://www.abcnews.go.com/International/wireStory?id=5676087">
2096# http://www.abcnews.go.com/International/wireStory?id=5676087
2097# </a>
2098# or
2099# <a href="http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html">
2100# http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html
2101# </a>
2102
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2103# From Alexander Krivenyshev (2009-03-26):
2104# According to the Palestine News Network (arabic.pnn.ps), Palestinian
2105# government decided to start Daylight Time on Thursday night March
2106# 26 and continue until the night of 27 September 2009.
2107#
2108# (in Arabic)
2109# <a href="http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850">
2110# http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850
2111# </a>
2112#
2113# or
2114# (English translation)
2115# <a href="http://www.worldtimezone.com/dst_news/dst_news_westbank01.html">
2116# http://www.worldtimezone.com/dst_news/dst_news_westbank01.html
2117# </a>
2118
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2119# From Steffen Thorsen (2009-08-31):
2120# Palestine's Council of Ministers announced that they will revert back to
2121# winter time on Friday, 2009-09-04.
2122#
2123# One news source:
2124# <a href="http://www.safa.ps/ara/?action=showdetail&seid=4158">
2125# http://www.safa.ps/ara/?action=showdetail&seid=4158
2126# </a>
2127# (Palestinian press agency, Arabic),
2128# Google translate: "Decided that the Palestinian government in Ramallah
2129# headed by Salam Fayyad, the start of work in time for the winter of
2130# 2009, starting on Friday approved the fourth delay Sept. clock sixty
2131# minutes per hour as of Friday morning."
2132#
2133# We are not sure if Gaza will do the same, last year they had a different
2134# end date, we will keep this page updated:
2135# <a href="http://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html">
2136# http://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
2137# </a>
2138
2139# From Alexander Krivenyshev (2009-09-02):
2140# Seems that Gaza Strip will go back to Winter Time same date as West Bank.
2141#
2142# According to Palestinian Ministry Of Interior, West Bank and Gaza Strip plan
2143# to change time back to Standard time on September 4, 2009.
2144#
2145# "Winter time unite the West Bank and Gaza"
2146# (from Palestinian National Authority):
2147# <a href="http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505
2148# http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505
2149# </a>
2150# or
2151# <a href="http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html>
2152# http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html
2153# </a>
2154
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2155# From Alexander Krivenyshev (2010-03-19):
2156# According to Voice of Palestine DST will last for 191 days, from March
2157# 26, 2010 till "the last Sunday before the tenth day of Tishri
2158# (October), each year" (October 03, 2010?)
2159#
2160# <a href="http://palvoice.org/forums/showthread.php?t=245697">
2161# http://palvoice.org/forums/showthread.php?t=245697
2162# </a>
2163# (in Arabic)
2164# or
2165# <a href="http://www.worldtimezone.com/dst_news/dst_news_westbank03.html">
2166# http://www.worldtimezone.com/dst_news/dst_news_westbank03.html
2167# </a>
2168
2169# From Steffen Thorsen (2010-03-24):
2170# ...Ma'an News Agency reports that Hamas cabinet has decided it will
2171# start one day later, at 12:01am. Not sure if they really mean 12:01am or
2172# noon though:
2173#
2174# <a href="http://www.maannews.net/eng/ViewDetails.aspx?ID=271178">
2175# http://www.maannews.net/eng/ViewDetails.aspx?ID=271178
2176# </a>
2177# (Ma'an News Agency)
2178# "At 12:01am Friday, clocks in Israel and the West Bank will change to
2179# 1:01am, while Gaza clocks will change at 12:01am Saturday morning."
2180
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2181# From Steffen Thorsen (2010-08-11):
2182# According to several sources, including
2183# <a href="http://www.maannews.net/eng/ViewDetails.aspx?ID=306795">
2184# http://www.maannews.net/eng/ViewDetails.aspx?ID=306795
2185# </a>
2186# the clocks were set back one hour at 2010-08-11 00:00:00 local time in
2187# Gaza and the West Bank.
2188# Some more background info:
2189# <a href="http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html">
2190# http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
2191# </a>
2192
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2193# The rules for Egypt are stolen from the `africa' file.
2194# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2195Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
2196Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
2197Rule EgyptAsia 1958 only - May 1 0:00 1:00 S
2198Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
2199Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
2200Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
2201
bd7414aa 2202Rule Palestine 1999 2005 - Apr Fri>=15 0:00 1:00 S
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2203Rule Palestine 1999 2003 - Oct Fri>=15 0:00 0 -
2204Rule Palestine 2004 only - Oct 1 1:00 0 -
bd7414aa 2205Rule Palestine 2005 only - Oct 4 2:00 0 -
aedcd57b 2206Rule Palestine 2006 2008 - Apr 1 0:00 1:00 S
bd7414aa 2207Rule Palestine 2006 only - Sep 22 0:00 0 -
234dfcd0 2208Rule Palestine 2007 only - Sep Thu>=8 2:00 0 -
aedcd57b 2209Rule Palestine 2008 only - Aug lastFri 2:00 0 -
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2210Rule Palestine 2009 only - Mar lastFri 0:00 1:00 S
2211Rule Palestine 2010 max - Mar lastSat 0:01 1:00 S
ae8fda8f 2212Rule Palestine 2009 max - Sep Fri>=1 2:00 0 -
b61525e2 2213Rule Palestine 2010 only - Aug 11 0:00 0 -
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MD
2214
2215# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2216Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
2217 2:00 Zion EET 1948 May 15
2218 2:00 EgyptAsia EE%sT 1967 Jun 5
2219 2:00 Zion I%sT 1996
2220 2:00 Jordan EE%sT 1999
2221 2:00 Palestine EE%sT
2222
2223# Paracel Is
2224# no information
2225
2226# Philippines
2227# On 1844-08-16, Narciso Claveria, governor-general of the
2228# Philippines, issued a proclamation announcing that 1844-12-30 was to
2229# be immediately followed by 1845-01-01. Robert H. van Gent has a
2230# transcript of the decree in <http://www.phys.uu.nl/~vgent/idl/idl.htm>.
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2231# The rest of the data are from Shanks & Pottenger.
2232
2233# From Paul Eggert (2006-04-25):
2234# Tomorrow's Manila Standard reports that the Philippines Department of
2235# Trade and Industry is considering adopting DST this June when the
2236# rainy season begins. See
2237# <http://www.manilastandardtoday.com/?page=politics02_april26_2006>.
2238# For now, we'll ignore this, since it's not definite and we lack details.
2239#
2240# From Jesper Norgaard Welen (2006-04-26):
2241# ... claims that Philippines had DST last time in 1990:
2242# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/
2243# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires,
2244# but no details]
2245
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2246# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2247Rule Phil 1936 only - Nov 1 0:00 1:00 S
2248Rule Phil 1937 only - Feb 1 0:00 0 -
2249Rule Phil 1954 only - Apr 12 0:00 1:00 S
2250Rule Phil 1954 only - Jul 1 0:00 0 -
2251Rule Phil 1978 only - Mar 22 0:00 1:00 S
2252Rule Phil 1978 only - Sep 21 0:00 0 -
2253# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2254Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31
2255 8:04:00 - LMT 1899 May 11
2256 8:00 Phil PH%sT 1942 May
2257 9:00 - JST 1944 Nov
2258 8:00 Phil PH%sT
2259
2260# Qatar
2261# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2262Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
2263 4:00 - GST 1972 Jun
2264 3:00 - AST
2265
2266# Saudi Arabia
2267# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2268Zone Asia/Riyadh 3:06:52 - LMT 1950
2269 3:00 - AST
2270
2271# Singapore
ba5ba9da
JR
2272# The data here are taken from Mok Ly Yng (2003-10-30)
2273# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
984263bc 2274# Zone NAME GMTOFF RULES FORMAT [UNTIL]
ba5ba9da
JR
2275Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
2276 6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
2277 7:00 - MALT 1933 Jan 1 # Malaya Time
2278 7:00 0:20 MALST 1936 Jan 1
2279 7:20 - MALT 1941 Sep 1
2280 7:30 - MALT 1942 Feb 16
2281 9:00 - JST 1945 Sep 12
984263bc 2282 7:30 - MALT 1965 Aug 9 # independence
ba5ba9da 2283 7:30 - SGT 1982 Jan 1 # Singapore Time
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2284 8:00 - SGT
2285
2286# Spratly Is
2287# no information
2288
2289# Sri Lanka
2290# From Paul Eggert (1996-09-03):
2291# "Sri Lanka advances clock by an hour to avoid blackout"
2292# (www.virtual-pc.com/lankaweb/news/items/240596-2.html, 1996-05-24,
2293# no longer available as of 1999-08-17)
2294# reported ``the country's standard time will be put forward by one hour at
2295# midnight Friday (1830 GMT) `in the light of the present power crisis'.''
2296#
2297# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
2298# by Shamindra in
2299# <a href="news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net">
2300# Daily News - Hot News Section (1996-10-26)
2301# </a>:
2302# With effect from 12.30 a.m. on 26th October 1996
2303# Sri Lanka will be six (06) hours ahead of GMT.
2304
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2305# From Jesper Norgaard Welen (2006-04-14), quoting Sri Lanka News Online
2306# <http://news.sinhalaya.com/wmview.php?ArtID=11002> (2006-04-13):
2307# 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes)
2308# at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006).
2309
2310# From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in:
2311# <http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML>
2312# [The Tamil Tigers] never accepted the original 1996 time change and simply
2313# kept their clocks set five and a half hours ahead of Greenwich Mean
2314# Time (GMT), in line with neighbor India.
2315# From Paul Eggert (2006-04-18):
e4a74243 2316# People who live in regions under Tamil control can use [TZ='Asia/Kolkata'],
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2317# as that zone has agreed with the Tamil areas since our cutoff date of 1970.
2318
2319# From K Sethu (2006-04-25):
2320# I think the abbreviation LKT originated from the world of computers at
2321# the time of or subsequent to the time zone changes by SL Government
2322# twice in 1996 and probably SL Government or its standardization
2323# agencies never declared an abbreviation as a national standard.
2324#
2325# I recollect before the recent change the government annoucemments
2326# mentioning it as simply changing Sri Lanka Standard Time or Sri Lanka
2327# Time and no mention was made about the abbreviation.
2328#
2329# If we look at Sri Lanka Department of Government's "Official News
2330# Website of Sri Lanka" ... http://www.news.lk/ we can see that they
2331# use SLT as abbreviation in time stamp at the beginning of each news
2332# item....
2333#
2334# Within Sri Lanka I think LKT is well known among computer users and
2335# adminsitrators. In my opinion SLT may not be a good choice because the
2336# nation's largest telcom / internet operator Sri Lanka Telcom is well
2337# known by that abbreviation - simply as SLT (there IP domains are
2338# slt.lk and sltnet.lk).
2339#
2340# But if indeed our government has adopted SLT as standard abbreviation
2341# (that we have not known so far) then it is better that it be used for
2342# all computers.
2343
2344# From Paul Eggert (2006-04-25):
2345# One possibility is that we wait for a bit for the dust to settle down
2346# and then see what people actually say in practice.
2347
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2348# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2349Zone Asia/Colombo 5:19:24 - LMT 1880
2350 5:19:32 - MMT 1906 # Moratuwa Mean Time
2351 5:30 - IST 1942 Jan 5
2352 5:30 0:30 IHST 1942 Sep
2353 5:30 1:00 IST 1945 Oct 16 2:00
2354 5:30 - IST 1996 May 25 0:00
2355 6:30 - LKT 1996 Oct 26 0:30
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2356 6:00 - LKT 2006 Apr 15 0:30
2357 5:30 - IST
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2358
2359# Syria
2360# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
2361Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S
2362Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
2363Rule Syria 1962 only - Apr 29 2:00 1:00 S
2364Rule Syria 1962 only - Oct 1 2:00 0 -
2365Rule Syria 1963 1965 - May 1 2:00 1:00 S
2366Rule Syria 1963 only - Sep 30 2:00 0 -
2367Rule Syria 1964 only - Oct 1 2:00 0 -
2368Rule Syria 1965 only - Sep 30 2:00 0 -
2369Rule Syria 1966 only - Apr 24 2:00 1:00 S
2370Rule Syria 1966 1976 - Oct 1 2:00 0 -
2371Rule Syria 1967 1978 - May 1 2:00 1:00 S
2372Rule Syria 1977 1978 - Sep 1 2:00 0 -
2373Rule Syria 1983 1984 - Apr 9 2:00 1:00 S
2374Rule Syria 1983 1984 - Oct 1 2:00 0 -
2375Rule Syria 1986 only - Feb 16 2:00 1:00 S
2376Rule Syria 1986 only - Oct 9 2:00 0 -
2377Rule Syria 1987 only - Mar 1 2:00 1:00 S
2378Rule Syria 1987 1988 - Oct 31 2:00 0 -
2379Rule Syria 1988 only - Mar 15 2:00 1:00 S
2380Rule Syria 1989 only - Mar 31 2:00 1:00 S
2381Rule Syria 1989 only - Oct 1 2:00 0 -
2382Rule Syria 1990 only - Apr 1 2:00 1:00 S
2383Rule Syria 1990 only - Sep 30 2:00 0 -
2384Rule Syria 1991 only - Apr 1 0:00 1:00 S
2385Rule Syria 1991 1992 - Oct 1 0:00 0 -
2386Rule Syria 1992 only - Apr 8 0:00 1:00 S
2387Rule Syria 1993 only - Mar 26 0:00 1:00 S
2388Rule Syria 1993 only - Sep 25 0:00 0 -
2389# IATA SSIM (1998-02) says 1998-04-02;
2390# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
2391# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
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SW
2392# (2006) says 2006-03-31 and 2006-09-22;
2393# for now ignore all these claims and go with Shanks & Pottenger,
2394# except for the 2006-09-22 claim (which seems right for Ramadan).
984263bc 2395Rule Syria 1994 1996 - Apr 1 0:00 1:00 S
bd7414aa 2396Rule Syria 1994 2005 - Oct 1 0:00 0 -
984263bc 2397Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S
f2892a6d 2398Rule Syria 1999 2006 - Apr 1 0:00 1:00 S
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SW
2399# From Stephen Colebourne (2006-09-18):
2400# According to IATA data, Syria will change DST on 21st September [21:00 UTC]
2401# this year [only].... This is probably related to Ramadan, like Egypt.
2402Rule Syria 2006 only - Sep 22 0:00 0 -
f2892a6d
SW
2403# From Paul Eggert (2007-03-29):
2404# Today the AP reported "Syria will switch to summertime at midnight Thursday."
2405# http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php
e4a74243 2406Rule Syria 2007 only - Mar lastFri 0:00 1:00 S
1aec505f
SW
2407# From Jesper Norgard (2007-10-27):
2408# The sister center ICARDA of my work CIMMYT is confirming that Syria DST will
2409# not take place 1.st November at 0:00 o'clock but 1.st November at 24:00 or
2410# rather Midnight between Thursday and Friday. This does make more sence than
2411# having it between Wednesday and Thursday (two workdays in Syria) since the
2412# weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now
2413# it is implemented at midnight of the last workday before weekend...
ef5158c8 2414#
1aec505f
SW
2415# From Steffen Thorsen (2007-10-27):
2416# Jesper Norgaard Welen wrote:
ef5158c8 2417#
1aec505f
SW
2418# > "Winter local time in Syria will be observed at midnight of Thursday 1
2419# > November 2007, and the clock will be put back 1 hour."
ef5158c8 2420#
1aec505f
SW
2421# I found confirmation on this in this gov.sy-article (Arabic):
2422# http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247
ef5158c8 2423#
1aec505f 2424# which using Google's translate tools says:
ef5158c8
SW
2425# Council of Ministers also approved the commencement of work on
2426# identifying the winter time as of Friday, 2/11/2007 where the 60th
1aec505f 2427# minute delay at midnight Thursday 1/11/2007.
e4a74243
SW
2428Rule Syria 2007 only - Nov Fri>=1 0:00 0 -
2429
2430# From Stephen Colebourne (2008-03-17):
2431# For everyone's info, I saw an IATA time zone change for [Syria] for
2432# this month (March 2008) in the last day or so...This is the data IATA
2433# are now using:
2434# Country Time Standard --- DST Start --- --- DST End --- DST
2435# Name Zone Variation Time Date Time Date
2436# Variation
2437# Syrian Arab
2438# Republic SY +0200 2200 03APR08 2100 30SEP08 +0300
2439# 2200 02APR09 2100 30SEP09 +0300
2440# 2200 01APR10 2100 30SEP10 +0300
2441
2442# From Arthur David Olson (2008-03-17):
2443# Here's a link to English-language coverage by the Syrian Arab News
2444# Agency (SANA)...
2445# <a href="http://www.sana.sy/eng/21/2008/03/11/165173.htm">
2446# http://www.sana.sy/eng/21/2008/03/11/165173.htm
2447# </a>...which reads (in part) "The Cabinet approved the suggestion of the
2448# Ministry of Electricity to begin daylight savings time on Friday April
2449# 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd."
2450# Since Syria is two hours east of UTC, the 2200 and 2100 transition times
2451# shown above match up with midnight in Syria.
2452
2453# From Arthur David Olson (2008-03-18):
2454# My buest guess at a Syrian rule is "the Friday nearest April 1";
2455# coding that involves either using a "Mar Fri>=29" construct that old time zone
2456# compilers can't handle or having multiple Rules (a la Israel).
2457# For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end.
2458
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SW
2459# From Steffen Thorsen (2008-10-07):
2460# Syria has now officially decided to end DST on 2008-11-01 this year,
2461# according to the following article in the Syrian Arab News Agency (SANA).
2462#
2463# The article is in Arabic, and seems to tell that they will go back to
2464# winter time on 2008-11-01 at 00:00 local daylight time (delaying/setting
2465# clocks back 60 minutes).
2466#
2467# <a href="http://sana.sy/ara/2/2008/10/07/195459.htm">
2468# http://sana.sy/ara/2/2008/10/07/195459.htm
2469# </a>
2470
63562808
SW
2471# From Steffen Thorsen (2009-03-19):
2472# Syria will start DST on 2009-03-27 00:00 this year according to many sources,
2473# two examples:
2474#
2475# <a href="http://www.sana.sy/eng/21/2009/03/17/217563.htm">
2476# http://www.sana.sy/eng/21/2009/03/17/217563.htm
2477# </a>
2478# (English, Syrian Arab News # Agency)
2479# <a href="http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209">
2480# http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209
2481# </a>
2482# (Arabic, gov-site)
2483#
2484# We have not found any sources saying anything about when DST ends this year.
2485#
2486# Our summary
2487# <a href="http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html">
2488# http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
2489# </a>
2490
f4d6ca16
SW
2491# From Steffen Thorsen (2009-10-27):
2492# The Syrian Arab News Network on 2009-09-29 reported that Syria will
2493# revert back to winter (standard) time on midnight between Thursday
2494# 2009-10-29 and Friday 2009-10-30:
2495# <a href="http://www.sana.sy/ara/2/2009/09/29/247012.htm">
2496# http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic)
2497# </a>
2498
2499# From Arthur David Olson (2009-10-28):
2500# We'll see if future DST switching times turn out to be end of the last
2501# Thursday of the month or the start of the last Friday of the month or
2502# something else. For now, use the start of the last Friday.
2503
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SW
2504# From Steffen Thorsen (2010-03-17):
2505# The "Syrian News Station" reported on 2010-03-16 that the Council of
2506# Ministers has decided that Syria will start DST on midnight Thursday
2507# 2010-04-01: (midnight between Thursday and Friday):
2508# <a href="http://sns.sy/sns/?path=news/read/11421">
2509# http://sns.sy/sns/?path=news/read/11421 (Arabic)
2510# </a>
2511
63562808 2512Rule Syria 2008 only - Apr Fri>=1 0:00 1:00 S
f4d6ca16 2513Rule Syria 2008 only - Nov 1 0:00 0 -
5756332b
SW
2514Rule Syria 2009 only - Mar lastFri 0:00 1:00 S
2515Rule Syria 2010 max - Apr Fri>=1 0:00 1:00 S
f4d6ca16 2516Rule Syria 2009 max - Oct lastFri 0:00 0 -
e4a74243 2517
984263bc
MD
2518# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2519Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq
2520 2:00 Syria EE%sT
2521
2522# Tajikistan
bd7414aa 2523# From Shanks & Pottenger.
984263bc
MD
2524# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2525Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
2526 5:00 - DUST 1930 Jun 21 # Dushanbe Time
2527 6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
2528 5:00 1:00 DUSST 1991 Sep 9 2:00s
2529 5:00 - TJT # Tajikistan Time
2530
2531# Thailand
2532# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2533Zone Asia/Bangkok 6:42:04 - LMT 1880
2534 6:42:04 - BMT 1920 Apr # Bangkok Mean Time
2535 7:00 - ICT
2536
2537# Turkmenistan
bd7414aa 2538# From Shanks & Pottenger.
984263bc
MD
2539# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2540Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad
2541 4:00 - ASHT 1930 Jun 21 # Ashkhabad Time
2542 5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
2543 4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence
bd7414aa 2544 4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
984263bc
MD
2545 5:00 - TMT
2546
2547# United Arab Emirates
2548# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2549Zone Asia/Dubai 3:41:12 - LMT 1920
2550 4:00 - GST
2551
2552# Uzbekistan
2553# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2554Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2
2555 4:00 - SAMT 1930 Jun 21 # Samarkand Time
2556 5:00 - SAMT 1981 Apr 1
2557 5:00 1:00 SAMST 1981 Oct 1
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SW
2558 6:00 - TAST 1982 Apr 1 # Tashkent Time
2559 5:00 RussiaAsia SAM%sT 1991 Sep 1 # independence
984263bc 2560 5:00 RussiaAsia UZ%sT 1992
984263bc
MD
2561 5:00 - UZT
2562Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
2563 5:00 - TAST 1930 Jun 21 # Tashkent Time
bd7414aa 2564 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00
984263bc
MD
2565 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
2566 5:00 RussiaAsia UZ%sT 1992
984263bc
MD
2567 5:00 - UZT
2568
2569# Vietnam
bd7414aa 2570
e4a74243
SW
2571# From Arthur David Olson (2008-03-18):
2572# The English-language name of Vietnam's most populous city is "Ho Chi Min City";
2573# we use Ho_Chi_Minh below to avoid a name of more than 14 characters.
bd7414aa
SW
2574
2575# From Shanks & Pottenger:
984263bc 2576# Zone NAME GMTOFF RULES FORMAT [UNTIL]
e4a74243 2577Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jun 9
984263bc
MD
2578 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
2579 7:00 - ICT 1912 May
2580 8:00 - ICT 1931 May
2581 7:00 - ICT
2582
2583# Yemen
2584# Zone NAME GMTOFF RULES FORMAT [UNTIL]
2585Zone Asia/Aden 3:00:48 - LMT 1950
2586 3:00 - AST