Serializer is already held before calling rl_watchdog().
[dragonfly.git] / share / zoneinfo / asia
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1# @(#)asia 7.90
2# <pre>
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3
4# This data is by no means authoritative; if you think you know better,
5# go ahead and edit the file (and please send any changes to
6# tz@elsie.nci.nih.gov for general use in the future).
7
9ffe4b14 8# From Paul Eggert (1999-03-22):
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9#
10# A good source for time zone historical data outside the U.S. is
11# Thomas G. Shanks, The International Atlas (5th edition),
12# San Diego: ACS Publications, Inc. (1999).
13#
14# Gwillim Law writes that a good source
15# for recent time zone data is the International Air Transport
16# Association's Standard Schedules Information Manual (IATA SSIM),
17# published semiannually. Law sent in several helpful summaries
18# of the IATA's data after 1990.
19#
20# Except where otherwise noted, Shanks is the source for entries through 1990,
21# and IATA SSIM is the source for entries after 1990.
22#
23# Another source occasionally used is Edward W. Whitman, World Time Differences,
24# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
25# I found in the UCLA library.
26#
27# A reliable and entertaining source about time zones is
28# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
29#
30# I invented the abbreviations marked `*' in the following table;
31# the rest are from earlier versions of this file, or from other sources.
32# Corrections are welcome!
33# std dst
34# LMT Local Mean Time
35# 2:00 EET EEST Eastern European Time
36# 2:00 IST IDT Israel
37# 3:00 AST ADT Arabia*
38# 3:30 IRST IRDT Iran
39# 4:00 GST Gulf*
40# 5:30 IST India
41# 7:00 ICT Indochina*
42# 7:00 WIT west Indonesia
43# 8:00 CIT central Indonesia
44# 8:00 CST China
45# 9:00 CJT Central Japanese Time (1896/1937)*
46# 9:00 EIT east Indonesia
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47# 9:00 JST JDT Japan
48# 9:00 KST KDT Korea
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49# 9:30 CST (Australian) Central Standard Time
50#
51# See the `europe' file for Russia and Turkey in Asia.
52
53# From Guy Harris:
54# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
55# additional information from Tom Yap, Sun Microsystems Intercontinental
56# Technical Support (including a page from the Official Airline Guide -
57# Worldwide Edition). The names for time zones are guesses.
58
59###############################################################################
60
61# These rules are stolen from the `europe' file.
62# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
63Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S
64Rule EUAsia 1996 max - Oct lastSun 1:00u 0 -
65Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S
66Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 -
67Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
68Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
69Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
70Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 -
71Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S
72Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S
73Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 -
74Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
75Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
76Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -
77
78# Afghanistan
79# Zone NAME GMTOFF RULES FORMAT [UNTIL]
80Zone Asia/Kabul 4:36:48 - LMT 1890
81 4:00 - AFT 1945
82 4:30 - AFT
83
84# Armenia
85# From Paul Eggert (1999-10-29):
86# Shanks has Yerevan switching to 3:00 (with Russian DST) in spring 1991,
87# then to 4:00 with no DST in fall 1995, then readopting Russian DST in 1997.
88# Go with Shanks, even when he disagrees with others. Edgar Der-Danieliantz
34850bd5 89# reported (1996-05-04) that Yerevan probably wouldn't use DST
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90# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
91# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
92# but started switching at 3:00s in 1998.
93# Zone NAME GMTOFF RULES FORMAT [UNTIL]
94Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
95 3:00 - YERT 1957 Mar # Yerevan Time
96 4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
97 3:00 1:00 YERST 1991 Sep 23 # independence
98 3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
99 4:00 - AMT 1997
100 4:00 RussiaAsia AM%sT
101
102# Azerbaijan
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103# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23):
104# According to the resolution of Cabinet of Ministers, 1997
105# Resolution available at: http://aif.az/docs/daylight_res.pdf
984263bc 106# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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107Rule Azer 1997 max - Mar lastSun 4:00 1:00 S
108Rule Azer 1997 max - Oct lastSun 5:00 0 -
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109# Zone NAME GMTOFF RULES FORMAT [UNTIL]
110Zone Asia/Baku 3:19:24 - LMT 1924 May 2
111 3:00 - BAKT 1957 Mar # Baku Time
112 4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
113 3:00 1:00 BAKST 1991 Aug 30 # independence
bc95ec93 114 3:00 RussiaAsia AZ%sT 1992 Sep lastSat 23:00
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115 4:00 - AZT 1996 # Azerbaijan time
116 4:00 EUAsia AZ%sT 1997
117 4:00 Azer AZ%sT
118
119# Bahrain
120# Zone NAME GMTOFF RULES FORMAT [UNTIL]
121Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al Manamah
122 4:00 - GST 1972 Jun
123 3:00 - AST
124
125# Bangladesh
126# Zone NAME GMTOFF RULES FORMAT [UNTIL]
127Zone Asia/Dhaka 6:01:40 - LMT 1890
128 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
129 6:30 - BURT 1942 May 15 # Burma Time
130 5:30 - IST 1942 Sep
131 6:30 - BURT 1951 Sep 30
132 6:00 - DACT 1971 Mar 26 # Dacca Time
133 6:00 - BDT # Bangladesh Time
134
135# Bhutan
136# Zone NAME GMTOFF RULES FORMAT [UNTIL]
137Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu
138 5:30 - IST 1987 Oct
139 6:00 - BTT # Bhutan Time
140
141# British Indian Ocean Territory
142# Whitman and the 1995 CIA time zone map say 5:00, but the
143# 1997 and later maps say 6:00. Assume the switch occurred in 1996.
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144# We have no information as to when standard time was introduced;
145# assume it occurred in 1907, the same year as Mauritius (which
146# then contained the Chagos Archipelago).
984263bc 147# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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148Zone Indian/Chagos 4:49:40 - LMT 1907
149 5:00 - IOT 1996 # BIOT Time
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150 6:00 - IOT
151
152# Brunei
153# Zone NAME GMTOFF RULES FORMAT [UNTIL]
154Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
155 7:30 - BNT 1933
156 8:00 - BNT
157
158# Burma / Myanmar
159# Zone NAME GMTOFF RULES FORMAT [UNTIL]
160Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
161 6:24:36 - RMT 1920 # Rangoon Mean Time?
162 6:30 - BURT 1942 May # Burma Time
163 9:00 - JST 1945 May 3
164 6:30 - MMT # Myanmar Time
165
166# Cambodia
167# Zone NAME GMTOFF RULES FORMAT [UNTIL]
168Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
169 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
170 7:00 - ICT 1912 May
171 8:00 - ICT 1931 May
172 7:00 - ICT
173
174# China
175
176# From Guy Harris:
177# People's Republic of China. Yes, they really have only one time zone.
178
179# From Bob Devine (1988-01-28):
180# No they don't. See TIME mag, 1986-02-17 p.52. Even though
181# China is across 4 physical time zones, before Feb 1, 1986 only the
182# Peking (Bejing) time zone was recognized. Since that date, China
183# has two of 'em -- Peking's and Urumqi (named after the capital of
184# the Xinjiang Uyghur Autonomous Region). I don't know about DST for it.
185#
186# . . .I just deleted the DST table and this editor makes it too
187# painful to suck in another copy.. So, here is what I have for
188# DST start/end dates for Peking's time zone (info from AP):
189#
190# 1986 May 4 - Sept 14
191# 1987 mid-April - ??
192
193# From U. S. Naval Observatory (1989-01-19):
194# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
195# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
196
9ffe4b14 197# From Paul Eggert (1995-12-19):
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198# Shanks writes that China has had a single time zone since 1980 May 1,
199# observing summer DST from 1986 through 1991; this contradicts Devine's
200# note about Time magazine, though apparently _something_ happened in 1986.
201# Go with Shanks for now. I made up names for the other pre-1980 time zones.
202
203# From Shanks:
204# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
205Rule Shang 1940 only - Jun 3 0:00 1:00 D
206Rule Shang 1940 1941 - Oct 1 0:00 0 S
207Rule Shang 1941 only - Mar 16 0:00 1:00 D
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208Rule PRC 1986 only - May 4 0:00 1:00 D
209Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
210Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
211#
212# Zone NAME GMTOFF RULES FORMAT [UNTIL]
213#
214# From Anthony Fok (2001-12-20):
215# BTW, I did some research on-line and found some info regarding these five
216# historic timezones from some Taiwan websites. And yes, there are official
217# Chinese names for these locales (before 1949):
218# Changbai Time ("Long-white Time", Long-white = Heilongjiang area)
219Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin
220 8:30 - CHAT 1932 Mar # Changbai Time
221 8:00 - CST 1940
222 9:00 - CHAT 1966 May
223 8:30 - CHAT 1980 May
224 8:00 PRC C%sT
225# Zhongyuan Time ("Central plain Time")
226Zone Asia/Shanghai 8:05:52 - LMT 1928
227 8:00 Shang C%sT 1949
228 8:00 PRC C%sT
229# Long-shu Time (probably due to Long and Shu being two names of that area)
230Zone Asia/Chongqing 7:06:20 - LMT 1928 # or Chungking
231 7:00 - LONT 1980 May # Long-shu Time
232 8:00 PRC C%sT
233# Xin-zang Time ("Xinjiang-Tibet Time")
234Zone Asia/Urumqi 5:50:20 - LMT 1928 # or Urumchi
235 6:00 - URUT 1980 May # Urumqi Time
236 8:00 PRC C%sT
237# Kunlun Time
238Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
239 5:30 - KAST 1940 # Kashgar Time
240 5:00 - KAST 1980 May
241 8:00 PRC C%sT
242
243# Hong Kong (Xianggang)
244# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
245Rule HK 1946 only - Apr 20 3:30 1:00 S
246Rule HK 1946 only - Dec 1 3:30 0 -
247Rule HK 1947 only - Apr 13 3:30 1:00 S
248Rule HK 1947 only - Dec 30 3:30 0 -
249Rule HK 1948 only - May 2 3:30 1:00 S
250Rule HK 1948 1952 - Oct lastSun 3:30 0 -
251Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
252Rule HK 1953 only - Nov 1 3:30 0 -
253Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
254Rule HK 1954 only - Oct 31 3:30 0 -
255Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
256Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S
257Rule HK 1965 1977 - Oct Sun>=16 3:30 0 -
258Rule HK 1979 1980 - May Sun>=8 3:30 1:00 S
259Rule HK 1979 1980 - Oct Sun>=16 3:30 0 -
260# Zone NAME GMTOFF RULES FORMAT [UNTIL]
261Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
262 8:00 HK HK%sT
263
264
265###############################################################################
266
267# Taiwan
268
269# Shanks writes that Taiwan observed DST during 1945, when it
270# was still controlled by Japan. This is hard to believe, but we don't
271# have any other information.
272
273# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
274Rule Taiwan 1945 1951 - May 1 0:00 1:00 D
275Rule Taiwan 1945 1951 - Oct 1 0:00 0 S
276Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
277Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
278Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
279Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
280Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
281Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
282Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
283Rule Taiwan 1980 only - Jun 30 0:00 1:00 D
284Rule Taiwan 1980 only - Sep 30 0:00 0 S
285# Zone NAME GMTOFF RULES FORMAT [UNTIL]
286Zone Asia/Taipei 8:06:00 - LMT 1896 # or Taibei or T'ai-pei
287 8:00 Taiwan C%sT
288
289# Macau (Macao, Aomen)
290# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
291Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 S
292Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 -
293Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 S
294Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 S
295Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 S
296Rule Macau 1965 only - Oct 31 0:00 0 -
297Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 S
298Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 -
299Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 S
300Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 -
301Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 -
302Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 S
303Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 S
304Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 -
305# Zone NAME GMTOFF RULES FORMAT [UNTIL]
306Zone Asia/Macau 7:34:20 - LMT 1912
307 8:00 Macau MO%sT 1999 Dec 20 # return to China
308 8:00 PRC C%sT
309
310
311###############################################################################
312
313# Cyprus
314# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
315Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
316Rule Cyprus 1975 only - Oct 12 0:00 0 -
317Rule Cyprus 1976 only - May 15 0:00 1:00 S
318Rule Cyprus 1976 only - Oct 11 0:00 0 -
319Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S
320Rule Cyprus 1977 only - Sep 25 0:00 0 -
321Rule Cyprus 1978 only - Oct 2 0:00 0 -
322Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 -
323Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S
324# Zone NAME GMTOFF RULES FORMAT [UNTIL]
325Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
326 2:00 Cyprus EE%sT 1998 Sep
327 2:00 EUAsia EE%sT
328# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
329
330# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72.
331# However, for various reasons many users expect to find it under Europe.
332Link Asia/Nicosia Europe/Nicosia
333
334# Georgia
9ffe4b14 335# From Paul Eggert (1994-11-19):
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336# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
337# an hour recently, due to a law proposed by Zurab Murvanidze,
338# an MP who went on a hunger strike for 11 days to force discussion about it!
339# We have no details, but we'll guess they didn't move the clocks back in fall.
340#
9ffe4b14 341# From Mathew Englander, quoting AP (1996-10-23 13:05-04):
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342# Instead of putting back clocks at the end of October, Georgia
343# will stay on daylight savings time this winter to save energy,
344# President Eduard Shevardnadze decreed Wednesday.
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345#
346# From the BBC via Joseph S. Myers (2004-06-27):
bc95ec93 347#
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348# Georgia moved closer to Western Europe on Sunday... The former Soviet
349# republic has changed its time zone back to that of Moscow. As a result it
350# is now just four hours ahead of Greenwich Mean Time, rather than five hours
351# ahead. The switch was decreed by the pro-Western president of Georgia,
352# Mikhail Saakashvili, who said the change was partly prompted by the process
353# of integration into Europe.
354
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355# From Teimuraz Abashidze (2005-11-07):
356# Government of Georgia ... decided to NOT CHANGE daylight savings time on
357# [Oct.] 30, as it was done before during last more than 10 years.
358# Currently, we are in fact GMT +4:00, as before 30 October it was GMT
359# +3:00.... The problem is, there is NO FORMAL LAW or governmental document
360# about it. As far as I can find, I was told, that there is no document,
361# because we just DIDN'T ISSUE document about switching to winter time....
362# I don't know what can be done, especially knowing that some years ago our
363# DST rules where changed THREE TIMES during one month.
364
365
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366# Zone NAME GMTOFF RULES FORMAT [UNTIL]
367Zone Asia/Tbilisi 2:59:16 - LMT 1880
368 2:59:16 - TBMT 1924 May 2 # Tbilisi Mean Time
369 3:00 - TBIT 1957 Mar # Tbilisi Time
370 4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
371 3:00 1:00 TBIST 1991 Apr 9 # independence
372 3:00 RussiaAsia GE%sT 1992 # Georgia Time
373 3:00 E-EurAsia GE%sT 1994 Sep lastSun
374 4:00 E-EurAsia GE%sT 1996 Oct lastSun
375 4:00 1:00 GEST 1997 Mar lastSun
ba5ba9da 376 4:00 E-EurAsia GE%sT 2004 Jun 27
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377 3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00
378 4:00 - GET
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379
380# East Timor
381
382# From Joao Carrascalao, brother of the former governor of East Timor, in
383# <a href="http://etan.org/et99c/december/26-31/30ETMAY.htm">
384# East Timor may be late for its millennium
385# </a> (1999-12-26/31):
386# Portugal tried to change the time forward in 1974 because the sun
387# rises too early but the suggestion raised a lot of problems with the
388# Timorese and I still don't think it would work today because it
389# conflicts with their way of life.
390
391# From Paul Eggert (2000-12-04):
392# We don't have any record of the above attempt.
393# Most likely our records are incomplete, but we have no better data.
394
395# <a href="http://www.hri.org/news/world/undh/last/00-08-16.undh.html">
396# From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General
397# (2000-08-16)</a>:
398# The Cabinet of the East Timor Transition Administration decided
399# today to advance East Timor's time by one hour. The time change,
400# which will be permanent, with no seasonal adjustment, will happen at
401# midnight on Saturday, September 16.
402
403# Zone NAME GMTOFF RULES FORMAT [UNTIL]
404Zone Asia/Dili 8:22:20 - LMT 1912
9ffe4b14 405 8:00 - TLT 1942 Feb 21 23:00 # E Timor Time
984263bc 406 9:00 - JST 1945 Aug
9ffe4b14 407 9:00 - TLT 1976 May 3
984263bc 408 8:00 - CIT 2000 Sep 17 00:00
9ffe4b14 409 9:00 - TLT
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410
411# India
412# Zone NAME GMTOFF RULES FORMAT [UNTIL]
ba5ba9da 413Zone Asia/Calcutta 5:53:28 - LMT 1880 # Kolkata
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414 5:53:20 - HMT 1941 Oct # Howrah Mean Time?
415 6:30 - BURT 1942 May 15 # Burma Time
416 5:30 - IST 1942 Sep
417 5:30 1:00 IST 1945 Oct 15
418 5:30 - IST
419# The following are like Asia/Calcutta:
420# Andaman Is
421# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
422# Nicobar Is
423
424# Indonesia
425#
426# From Gwillim Law (2001-05-28), overriding Shanks:
427# <http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime>
428# says that Indonesia's time zones changed on 1988-01-01. Looking at some
429# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat
430# and Kalimantan Tengah) switching from UTC+8 to UTC+7.
431#
432# Zone NAME GMTOFF RULES FORMAT [UNTIL]
433Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
434# Shanks says the next transition was at 1924 Jan 1 0:13,
435# but this must be a typo.
436 7:07:12 - JMT 1923 Dec 31 23:47:12 # Jakarta
437 7:20 - JAVT 1932 Nov # Java Time
438 7:30 - WIT 1942 Mar 23
439 9:00 - JST 1945 Aug
440 7:30 - WIT 1948 May
441 8:00 - WIT 1950 May
442 7:30 - WIT 1964
443 7:00 - WIT
444Zone Asia/Pontianak 7:17:20 - LMT 1908 May
445 7:17:20 - PMT 1932 Nov # Pontianak MT
446 7:30 - WIT 1942 Jan 29
447 9:00 - JST 1945 Aug
448 7:30 - WIT 1948 May
449 8:00 - WIT 1950 May
450 7:30 - WIT 1964
451 8:00 - CIT 1988 Jan 1
452 7:00 - WIT
453Zone Asia/Makassar 7:57:36 - LMT 1920
454 7:57:36 - MMT 1932 Nov # Macassar MT
455 8:00 - CIT 1942 Feb 9
456 9:00 - JST 1945 Aug
457 8:00 - CIT
458Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
459 9:00 - EIT 1944
460 9:30 - CST 1964
461 9:00 - EIT
462
463# Iran
464
465# From Roozbeh Pournader (2003-03-15):
466# This is an English translation of what I just found (originally in Persian).
467# The Gregorian dates in brackets are mine:
468#
469# Official Newspaper No. 13548-1370/6/25 [1991-09-16]
470# No. 16760/T233 H 1370/6/10 [1991-09-01]
471#
472# The Rule About Change of the Official Time of the Country
473#
474# The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14],
475# based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13]
476# of the Country's Organization for Official and Employment Affairs,
477# and referring to the law for equating the working hours of workers
478# and officers in the whole country dated 1359/4/23 [1980-07-14], and
479# for synchronizing the official times of the country, agreed that:
480#
481# The official time of the country will should move forward one hour
482# at the 24[:00] hours of the first day of Farvardin and should return
483# to its previous state at the 24[:00] hours of the 30th day of
484# Shahrivar.
485#
486# First Deputy to the President - Hassan Habibi
487#
488# From personal experience, that agrees with what has been followed
489# for at least the last 5 years. Before that, for a few years, the
490# date used was the first Thursday night of Farvardin and the last
491# Thursday night of Shahrivar, but I can't give exact dates....
492# I have also changed the abbreviations to what is considered correct
493# here in Iran, IRST for regular time and IRDT for daylight saving time.
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494#
495# From Roozbeh Pournader (2005-04-05):
496# The text of the Iranian law, in effect since 1925, clearly mentions
497# that the true solar year is the measure, and there is no arithmetic
498# leap year calculation involved. There has never been any serious
499# plan to change that law....
500#
501# From Paul Eggert (2005-04-05):
984263bc 502# Go with Shanks before September 1991, and with Pournader thereafter.
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503# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates,
504# stopping after 2037 when 32-bit time_t's overflow.
505# That cal-persia used Birashk's approximation, which disagrees with the solar
506# calendar predictions for the year 2025, so I corrected those dates by hand.
507#
508# From Oscar van Vlijmen (2005-03-30), writing about future
509# discrepancies between cal-persia and the Iranian calendar:
510# For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for
511# the vernal equinox and that gets so close to 12:00 some local
512# Iranian time that the definition of the correct location needs to be
513# known exactly, amongst other factors. 2157 is even closer:
514# 2157-03-20 08:37:15.5 UT. But the Gregorian year 2025 should give
515# no interpretation problem whatsoever. By the way, another instant
516# in the near future where there will be a discrepancy between
517# arithmetical and astronomical Iranian calendars will be in 2058:
518# vernal equinox on 2058-03-20 09:03:05.9 UT. The Java version of
519# Reingold's/Dershowitz' calculator gives correctly the Gregorian date
520# 2058-03-21 for 1 Farvardin 1437 (astronomical).
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521#
522# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
523Rule Iran 1978 1980 - Mar 21 0:00 1:00 D
524Rule Iran 1978 only - Oct 21 0:00 0 S
525Rule Iran 1979 only - Sep 19 0:00 0 S
526Rule Iran 1980 only - Sep 23 0:00 0 S
527Rule Iran 1991 only - May 3 0:00 1:00 D
528Rule Iran 1992 1995 - Mar 22 0:00 1:00 D
529Rule Iran 1991 1995 - Sep 22 0:00 0 S
530Rule Iran 1996 only - Mar 21 0:00 1:00 D
531Rule Iran 1996 only - Sep 21 0:00 0 S
532Rule Iran 1997 1999 - Mar 22 0:00 1:00 D
533Rule Iran 1997 1999 - Sep 22 0:00 0 S
534Rule Iran 2000 only - Mar 21 0:00 1:00 D
535Rule Iran 2000 only - Sep 21 0:00 0 S
536Rule Iran 2001 2003 - Mar 22 0:00 1:00 D
537Rule Iran 2001 2003 - Sep 22 0:00 0 S
538Rule Iran 2004 only - Mar 21 0:00 1:00 D
539Rule Iran 2004 only - Sep 21 0:00 0 S
540Rule Iran 2005 2007 - Mar 22 0:00 1:00 D
541Rule Iran 2005 2007 - Sep 22 0:00 0 S
542Rule Iran 2008 only - Mar 21 0:00 1:00 D
543Rule Iran 2008 only - Sep 21 0:00 0 S
544Rule Iran 2009 2011 - Mar 22 0:00 1:00 D
545Rule Iran 2009 2011 - Sep 22 0:00 0 S
546Rule Iran 2012 only - Mar 21 0:00 1:00 D
547Rule Iran 2012 only - Sep 21 0:00 0 S
548Rule Iran 2013 2015 - Mar 22 0:00 1:00 D
549Rule Iran 2013 2015 - Sep 22 0:00 0 S
550Rule Iran 2016 only - Mar 21 0:00 1:00 D
551Rule Iran 2016 only - Sep 21 0:00 0 S
552Rule Iran 2017 2019 - Mar 22 0:00 1:00 D
553Rule Iran 2017 2019 - Sep 22 0:00 0 S
554Rule Iran 2020 only - Mar 21 0:00 1:00 D
555Rule Iran 2020 only - Sep 21 0:00 0 S
556Rule Iran 2021 2023 - Mar 22 0:00 1:00 D
557Rule Iran 2021 2023 - Sep 22 0:00 0 S
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558Rule Iran 2024 only - Mar 21 0:00 1:00 D
559Rule Iran 2024 only - Sep 21 0:00 0 S
560Rule Iran 2025 2027 - Mar 22 0:00 1:00 D
561Rule Iran 2025 2027 - Sep 22 0:00 0 S
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562Rule Iran 2028 2029 - Mar 21 0:00 1:00 D
563Rule Iran 2028 2029 - Sep 21 0:00 0 S
564Rule Iran 2030 2031 - Mar 22 0:00 1:00 D
565Rule Iran 2030 2031 - Sep 22 0:00 0 S
566Rule Iran 2032 2033 - Mar 21 0:00 1:00 D
567Rule Iran 2032 2033 - Sep 21 0:00 0 S
568Rule Iran 2034 2035 - Mar 22 0:00 1:00 D
569Rule Iran 2034 2035 - Sep 22 0:00 0 S
570Rule Iran 2036 2037 - Mar 21 0:00 1:00 D
571Rule Iran 2036 2037 - Sep 21 0:00 0 S
572# Zone NAME GMTOFF RULES FORMAT [UNTIL]
573Zone Asia/Tehran 3:25:44 - LMT 1916
574 3:25:44 - TMT 1946 # Tehran Mean Time
575 3:30 - IRST 1977 Nov
576 4:00 Iran IR%sT 1979
577 3:30 Iran IR%sT
578
579
580# Iraq
581#
9ffe4b14 582# From Jonathan Lennox (2000-06-12):
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583# An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in
584# the U.S. edition) on the Iraqi Kurds contains a paragraph:
585# "The three northern provinces ... switched their clocks this spring and
586# are an hour ahead of Baghdad."
587#
588# But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows:
589# In the past, some Kurdish nationalists, as a protest to the Iraqi
590# Government, did not adhere to daylight saving time. They referred
591# to daylight saving as Saddam time. But, as of today, the time zone
592# in Iraqi-Kurdistan is on standard time with Baghdad, Iraq.
593#
594# So we'll ignore the Economist's claim.
595
596# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
597Rule Iraq 1982 only - May 1 0:00 1:00 D
598Rule Iraq 1982 1984 - Oct 1 0:00 0 S
599Rule Iraq 1983 only - Mar 31 0:00 1:00 D
600Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
601Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S
602Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D
603# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo.
604# Shanks says Iraq did not observe DST 1992/1997 or 1999 on; ignore this.
605Rule Iraq 1991 max - Apr 1 3:00s 1:00 D
606Rule Iraq 1991 max - Oct 1 3:00s 0 S
607# Zone NAME GMTOFF RULES FORMAT [UNTIL]
608Zone Asia/Baghdad 2:57:40 - LMT 1890
609 2:57:36 - BMT 1918 # Baghdad Mean Time?
610 3:00 - AST 1982 May
611 3:00 Iraq A%sT
612
613
614###############################################################################
615
616# Israel
617
618# From Ephraim Silverberg (2001-01-11):
619#
620# I coined "IST/IDT" circa 1988. Until then there were three
621# different abbreviations in use:
622#
623# JST Jerusalem Standard Time [Danny Braniss, Hebrew University]
624# IZT Israel Zonal (sic) Time [Prof. Haim Papo, Technion]
625# EEST Eastern Europe Standard Time [used by almost everyone else]
626#
627# Since timezones should be called by country and not capital cities,
628# I ruled out JST. As Israel is in Asia Minor and not Eastern Europe,
629# EEST was equally unacceptable. Since "zonal" was not compatible with
630# any other timezone abbreviation, I felt that 'IST' was the way to go
631# and, indeed, it has received almost universal acceptance in timezone
632# settings in Israeli computers.
633#
634# In any case, I am happy to share timezone abbreviations with India,
635# high on my favorite-country list (and not only because my wife's
636# family is from India).
637
638# From Shanks:
639# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
640Rule Zion 1940 only - Jun 1 0:00 1:00 D
641Rule Zion 1942 1944 - Nov 1 0:00 0 S
642Rule Zion 1943 only - Apr 1 2:00 1:00 D
643Rule Zion 1944 only - Apr 1 0:00 1:00 D
644Rule Zion 1945 only - Apr 16 0:00 1:00 D
645Rule Zion 1945 only - Nov 1 2:00 0 S
646Rule Zion 1946 only - Apr 16 2:00 1:00 D
647Rule Zion 1946 only - Nov 1 0:00 0 S
648Rule Zion 1948 only - May 23 0:00 2:00 DD
649Rule Zion 1948 only - Sep 1 0:00 1:00 D
650Rule Zion 1948 1949 - Nov 1 2:00 0 S
651Rule Zion 1949 only - May 1 0:00 1:00 D
652Rule Zion 1950 only - Apr 16 0:00 1:00 D
653Rule Zion 1950 only - Sep 15 3:00 0 S
654Rule Zion 1951 only - Apr 1 0:00 1:00 D
655Rule Zion 1951 only - Nov 11 3:00 0 S
656Rule Zion 1952 only - Apr 20 2:00 1:00 D
657Rule Zion 1952 only - Oct 19 3:00 0 S
658Rule Zion 1953 only - Apr 12 2:00 1:00 D
659Rule Zion 1953 only - Sep 13 3:00 0 S
660Rule Zion 1954 only - Jun 13 0:00 1:00 D
661Rule Zion 1954 only - Sep 12 0:00 0 S
662Rule Zion 1955 only - Jun 11 2:00 1:00 D
663Rule Zion 1955 only - Sep 11 0:00 0 S
664Rule Zion 1956 only - Jun 3 0:00 1:00 D
665Rule Zion 1956 only - Sep 30 3:00 0 S
666Rule Zion 1957 only - Apr 29 2:00 1:00 D
667Rule Zion 1957 only - Sep 22 0:00 0 S
668Rule Zion 1974 only - Jul 7 0:00 1:00 D
669Rule Zion 1974 only - Oct 13 0:00 0 S
670Rule Zion 1975 only - Apr 20 0:00 1:00 D
671Rule Zion 1975 only - Aug 31 0:00 0 S
672Rule Zion 1985 only - Apr 14 0:00 1:00 D
673Rule Zion 1985 only - Sep 15 0:00 0 S
674Rule Zion 1986 only - May 18 0:00 1:00 D
675Rule Zion 1986 only - Sep 7 0:00 0 S
676Rule Zion 1987 only - Apr 15 0:00 1:00 D
677Rule Zion 1987 only - Sep 13 0:00 0 S
678Rule Zion 1988 only - Apr 9 0:00 1:00 D
679Rule Zion 1988 only - Sep 3 0:00 0 S
680
9ffe4b14 681# From Ephraim Silverberg
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682# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22,
683# and 2005-02-17):
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684
685# According to the Office of the Secretary General of the Ministry of
686# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
687# One thing is entrenched in law, however: that there must be at least 150
688# days of daylight savings time annually. From 1993-1998, the change to
689# daylight savings time was on a Friday morning from midnight IST to
690# 1 a.m IDT; up until 1998, the change back to standard time was on a
691# Saturday night from midnight daylight savings time to 11 p.m. standard
692# time. 1996 is an exception to this rule where the change back to standard
693# time took place on Sunday night instead of Saturday night to avoid
694# conflicts with the Jewish New Year. In 1999, the change to
695# daylight savings time was still on a Friday morning but from
696# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
697# was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for
698# 1999 only. In the year 2000, the change to daylight savings time was
699# similar to 1999, but although the change back will be on a Friday, it
700# will take place from 1 a.m. IDT to midnight IST. Starting in 2001, all
701# changes to/from will take place at 1 a.m. old time, but now there is no
702# rule as to what day of the week it will take place in as the start date
703# (except in 2003) is the night after the Passover Seder (i.e. the eve
704# of the 16th of Nisan in the lunar Hebrew calendar) and the end date
705# (except in 2002) is three nights before Yom Kippur [Day of Atonement]
706# (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
707
708# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
709Rule Zion 1989 only - Apr 30 0:00 1:00 D
710Rule Zion 1989 only - Sep 3 0:00 0 S
711Rule Zion 1990 only - Mar 25 0:00 1:00 D
712Rule Zion 1990 only - Aug 26 0:00 0 S
713Rule Zion 1991 only - Mar 24 0:00 1:00 D
714Rule Zion 1991 only - Sep 1 0:00 0 S
715Rule Zion 1992 only - Mar 29 0:00 1:00 D
716Rule Zion 1992 only - Sep 6 0:00 0 S
717Rule Zion 1993 only - Apr 2 0:00 1:00 D
718Rule Zion 1993 only - Sep 5 0:00 0 S
719
720# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
721# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
722# calling the office directly at 972-2-6701447 or 972-2-6701448.
723
724# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
725Rule Zion 1994 only - Apr 1 0:00 1:00 D
726Rule Zion 1994 only - Aug 28 0:00 0 S
727Rule Zion 1995 only - Mar 31 0:00 1:00 D
728Rule Zion 1995 only - Sep 3 0:00 0 S
729
730# The dates for 1996 were determined by the Minister of Interior of the
731# time, Haim Ramon. The official announcement regarding 1996-1998
732# (with the dates for 1997-1998 no longer being relevant) can be viewed at:
733#
bc95ec93 734# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
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735#
736# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
737#
738# The official announcements for the years 1997-1999 can be viewed at:
739#
bc95ec93 740# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
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MD
741#
742# where YYYY is the relevant year.
743
744# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
745Rule Zion 1996 only - Mar 15 0:00 1:00 D
746Rule Zion 1996 only - Sep 16 0:00 0 S
747Rule Zion 1997 only - Mar 21 0:00 1:00 D
748Rule Zion 1997 only - Sep 14 0:00 0 S
749Rule Zion 1998 only - Mar 20 0:00 1:00 D
750Rule Zion 1998 only - Sep 6 0:00 0 S
751Rule Zion 1999 only - Apr 2 2:00 1:00 D
752Rule Zion 1999 only - Sep 3 2:00 0 S
753
754# The Knesset Interior Committee has changed the dates for 2000 for
755# the third time in just over a year and have set new dates for the
756# years 2001-2004 as well.
757#
758# The official announcement for the start date of 2000 can be viewed at:
759#
bc95ec93 760# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz
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761#
762# The official announcement for the end date of 2000 and the dates
763# for the years 2001-2004 can be viewed at:
764#
bc95ec93 765# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz
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766
767# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
768Rule Zion 2000 only - Apr 14 2:00 1:00 D
769Rule Zion 2000 only - Oct 6 1:00 0 S
770Rule Zion 2001 only - Apr 9 1:00 1:00 D
771Rule Zion 2001 only - Sep 24 1:00 0 S
772Rule Zion 2002 only - Mar 29 1:00 1:00 D
773Rule Zion 2002 only - Oct 7 1:00 0 S
774Rule Zion 2003 only - Mar 28 1:00 1:00 D
775Rule Zion 2003 only - Oct 3 1:00 0 S
776Rule Zion 2004 only - Apr 7 1:00 1:00 D
777Rule Zion 2004 only - Sep 22 1:00 0 S
778
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779# The proposed law agreed upon by the Knesset Interior Committee on
780# 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the
781# last Friday before April 2nd (i.e. the last Friday in March or April
782# 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday
783# night _before_ the fast of Yom Kippur.
784#
785# Those who can read Hebrew can view the announcement at:
786#
787# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps
788
789# From Paul Eggert (2005-02-22):
790# I used Ephraim Silverberg's dst-israel.el program
791# <ftp://ftp.cs.huji.ac.il/pub/tz/software/dst-israel.el> (2005-02-20)
792# along with Ed Reingold's cal-hebrew in GNU Emacs 21.4,
793# to generate the transitions in this list.
794# (I replaced "lastFri" with "Fri>=26" by hand.)
795# The spring transitions below all correspond to the following Rule:
796#
797# Rule Zion 2005 max - Mar Fri>=26 2:00 1:00 D
798#
799# but older zic implementations (e.g., Solaris 8) do not support
800# "Fri>=26" to mean April 1 in years like 2005, so for now we list the
801# springtime transitions explicitly.
802
803# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
804Rule Zion 2005 only - Apr 1 2:00 1:00 D
805Rule Zion 2005 only - Oct 9 2:00 0 S
806Rule Zion 2006 2010 - Mar Fri>=26 2:00 1:00 D
807Rule Zion 2006 only - Oct 1 2:00 0 S
808Rule Zion 2007 only - Sep 16 2:00 0 S
809Rule Zion 2008 only - Oct 5 2:00 0 S
810Rule Zion 2009 only - Sep 27 2:00 0 S
811Rule Zion 2010 only - Sep 12 2:00 0 S
812Rule Zion 2011 only - Apr 1 2:00 1:00 D
813Rule Zion 2011 only - Oct 2 2:00 0 S
814Rule Zion 2012 2015 - Mar Fri>=26 2:00 1:00 D
815Rule Zion 2012 only - Sep 23 2:00 0 S
816Rule Zion 2013 only - Sep 8 2:00 0 S
817Rule Zion 2014 only - Sep 28 2:00 0 S
818Rule Zion 2015 only - Sep 20 2:00 0 S
819Rule Zion 2016 only - Apr 1 2:00 1:00 D
820Rule Zion 2016 only - Oct 9 2:00 0 S
821Rule Zion 2017 2021 - Mar Fri>=26 2:00 1:00 D
822Rule Zion 2017 only - Sep 24 2:00 0 S
823Rule Zion 2018 only - Sep 16 2:00 0 S
824Rule Zion 2019 only - Oct 6 2:00 0 S
825Rule Zion 2020 only - Sep 27 2:00 0 S
826Rule Zion 2021 only - Sep 12 2:00 0 S
827Rule Zion 2022 only - Apr 1 2:00 1:00 D
828Rule Zion 2022 only - Oct 2 2:00 0 S
829Rule Zion 2023 2032 - Mar Fri>=26 2:00 1:00 D
830Rule Zion 2023 only - Sep 24 2:00 0 S
831Rule Zion 2024 only - Oct 6 2:00 0 S
832Rule Zion 2025 only - Sep 28 2:00 0 S
833Rule Zion 2026 only - Sep 20 2:00 0 S
834Rule Zion 2027 only - Oct 10 2:00 0 S
835Rule Zion 2028 only - Sep 24 2:00 0 S
836Rule Zion 2029 only - Sep 16 2:00 0 S
837Rule Zion 2030 only - Oct 6 2:00 0 S
838Rule Zion 2031 only - Sep 21 2:00 0 S
839Rule Zion 2032 only - Sep 12 2:00 0 S
840Rule Zion 2033 only - Apr 1 2:00 1:00 D
841Rule Zion 2033 only - Oct 2 2:00 0 S
842Rule Zion 2034 2037 - Mar Fri>=26 2:00 1:00 D
843Rule Zion 2034 only - Sep 17 2:00 0 S
844Rule Zion 2035 only - Oct 7 2:00 0 S
845Rule Zion 2036 only - Sep 28 2:00 0 S
846Rule Zion 2037 only - Sep 13 2:00 0 S
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MD
847
848# Zone NAME GMTOFF RULES FORMAT [UNTIL]
849Zone Asia/Jerusalem 2:20:56 - LMT 1880
850 2:20:40 - JMT 1918 # Jerusalem Mean Time?
851 2:00 Zion I%sT
852
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MD
853
854
855###############################################################################
856
857# Japan
858
859# `9:00' and `JST' is from Guy Harris.
860
9ffe4b14 861# From Paul Eggert (1995-03-06):
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MD
862# Today's _Asahi Evening News_ (page 4) reports that Japan had
863# daylight saving between 1948 and 1951, but ``the system was discontinued
864# because the public believed it would lead to longer working hours.''
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SW
865
866# From Mayumi Negishi in the 2005-08-10 Japan Times
867# <http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm>:
868# Occupation authorities imposed daylight-saving time on Japan on
869# [1948-05-01].... But lack of prior debate and the execution of
870# daylight-saving time just three days after the bill was passed generated
871# deep hatred of the concept.... The Diet unceremoniously passed a bill to
872# dump the unpopular system in October 1951, less than a month after the San
873# Francisco Peace Treaty was signed. (A government poll in 1951 showed 53%
874# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who
875# wanted to keep it.)
876
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MD
877# Shanks writes that daylight saving in Japan during those years was as follows:
878# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
9ffe4b14
SW
879Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
880Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
881Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
882Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
883# but the only locations using it (for birth certificates, presumably, since
884# Shanks's audience is astrologers) were US military bases. For now, assume
885# that for most purposes daylight-saving time was observed; otherwise, what
886# would have been the point of the 1951 poll?
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MD
887
888# From Hideyuki Suzuki (1998-11-09):
889# 'Tokyo' usually stands for the former location of Tokyo Astronomical
890# Observatory: E 139 44' 40".90 (9h 18m 58s.727), N 35 39' 16".0.
891# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
892# edited by National Astronomical Observatory of Japan....
893# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
894# The law is enacted on 1886-07-07.
895
896# From Hideyuki Suzuki (1998-11-16):
897# The ordinance No. 51 (1886) established "standard time" in Japan,
898# which stands for the time on E 135 degree.
899# In the ordinance No. 167 (1895), "standard time" was renamed to "central
900# standard time". And the same ordinance also established "western standard
901# time", which stands for the time on E 120 degree.... But "western standard
902# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
903# 167, there is no mention regarding for what place western standard time is
904# standard....
905#
906# I wrote "ordinance" above, but I don't know how to translate.
907# In Japanese it's "chokurei", which means ordinance from emperor.
908
909# Shanks claims JST in use since 1896, and that a few places (e.g. Ishigaki)
910# use +0800; go with Suzuki. Guess that all ordinances took effect on Jan 1.
911
912# Zone NAME GMTOFF RULES FORMAT [UNTIL]
913Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
914 9:00 - JST 1896
915 9:00 - CJT 1938
9ffe4b14 916 9:00 Japan J%sT
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MD
917# Since 1938, all Japanese possessions have been like Asia/Tokyo.
918
919# Jordan
920#
921# From <a href="http://star.arabia.com/990701/JO9.html">
922# Jordan Week (1999-07-01) </a> via Steffen Thorsen (1999-09-09):
923# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
924# in accordance with the government's decision to implement summer time
925# all year round.
926#
927# From <a href="http://star.arabia.com/990930/JO9.html">
928# Jordan Week (1999-09-30) </a> via Steffen Thorsen (1999-11-09):
929# Winter time starts today Thursday, 30 September. Clocks will be turned back
930# by one hour. This is the latest government decision and it's final!
931# The decision was taken because of the increase in working hours in
932# government's departments from six to seven hours.
933#
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934# From Paul Eggert (2005-11-22):
935# Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com.
936#
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937# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
938Rule Jordan 1973 only - Jun 6 0:00 1:00 S
939Rule Jordan 1973 1975 - Oct 1 0:00 0 -
940Rule Jordan 1974 1977 - May 1 0:00 1:00 S
941Rule Jordan 1976 only - Nov 1 0:00 0 -
942Rule Jordan 1977 only - Oct 1 0:00 0 -
943Rule Jordan 1978 only - Apr 30 0:00 1:00 S
944Rule Jordan 1978 only - Sep 30 0:00 0 -
945Rule Jordan 1985 only - Apr 1 0:00 1:00 S
946Rule Jordan 1985 only - Oct 1 0:00 0 -
947Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S
948Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
949Rule Jordan 1989 only - May 8 0:00 1:00 S
950Rule Jordan 1990 only - Apr 27 0:00 1:00 S
951Rule Jordan 1991 only - Apr 17 0:00 1:00 S
952Rule Jordan 1991 only - Sep 27 0:00 0 -
953Rule Jordan 1992 only - Apr 10 0:00 1:00 S
954Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 -
955Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S
956Rule Jordan 1994 only - Sep Fri>=15 0:00 0 -
957Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 -
958Rule Jordan 1999 only - Jul 1 0:00s 1:00 S
aa65d21a 959Rule Jordan 1999 2002 - Sep lastThu 0:00s 0 -
984263bc 960Rule Jordan 2000 max - Mar lastThu 0:00s 1:00 S
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961Rule Jordan 2003 only - Oct 24 0:00s 0 -
962Rule Jordan 2004 only - Oct 15 0:00s 0 -
963Rule Jordan 2005 max - Sep lastFri 0:00s 0 -
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964# Zone NAME GMTOFF RULES FORMAT [UNTIL]
965Zone Asia/Amman 2:23:44 - LMT 1931
966 2:00 Jordan EE%sT
967
9ffe4b14 968
984263bc 969# Kazakhstan
9ffe4b14 970
984263bc 971# From Paul Eggert (1996-11-22):
9ffe4b14 972# Andrew Evtichov (1996-04-13) writes that Kazakhstan
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973# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
974# and Aqtau (formerly Shevchenko) are the largest cities in their zones.
975# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
976# IATA SSIM mentions a third time zone in Kazakhstan.
9ffe4b14 977
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978# From Paul Eggert (2001-10-18):
979# German Iofis, ELSI, Almaty (2001-10-09) reports that Kazakhstan uses
980# RussiaAsia rules, instead of switching at 00:00 as the IATA has it.
981# Go with Shanks, who has them always using RussiaAsia rules.
982# Also go with the following claims of Shanks:
983#
984# - Kazakhstan did not observe DST in 1991.
985# - Qyzylorda switched from +5:00 to +6:00 on 1992-01-19 02:00.
986# - Oral switched from +5:00 to +4:00 in spring 1989.
9ffe4b14 987
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988# <a href="http://www.kazsociety.org.uk/news/2005/03/30.htm">
989# From Kazakhstan Embassy's News Bulletin #11 (2005-03-21):
990# </a>
991# The Government of Kazakhstan passed a resolution March 15 abolishing
992# daylight saving time citing lack of economic benefits and health
993# complications coupled with a decrease in productivity.
994#
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995# From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28):
996# ... what happened was that the former Kazakhstan Eastern time zone
997# was "blended" with the Central zone. Therefore, Kazakhstan now has
998# two time zones, and difference between them is one hour. The zone
999# closer to UTC is the former Western zone (probably still called the
1000# same), encompassing four provinces in the west: Aqtobe, Atyrau,
1001# Mangghystau, and West Kazakhstan. The other zone encompasses
1002# everything else.... I guess that would make Kazakhstan time zones
1003# de jure UTC+5 and UTC+6 respectively.
1004
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1005#
1006# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1007#
1008# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan
1009Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
1010 5:00 - ALMT 1930 Jun 21 # Alma-Ata Time
1011 6:00 RussiaAsia ALM%sT 1991
1012 6:00 - ALMT 1992
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1013 6:00 RussiaAsia ALM%sT 2005 Mar 15
1014 6:00 - ALMT
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1015# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.)
1016Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2
1017 4:00 - KIZT 1930 Jun 21 # Kizilorda Time
1018 5:00 - KIZT 1981 Apr 1
1019 5:00 1:00 KIZST 1981 Oct 1
1020 6:00 - KIZT 1982 Apr 1
1021 5:00 RussiaAsia KIZ%sT 1991
1022 5:00 - KIZT 1991 Dec 16 # independence
1023 5:00 - QYZT 1992 Jan 19 2:00
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SW
1024 6:00 RussiaAsia QYZ%sT 2005 Mar 15
1025 6:00 - QYZT
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MD
1026# Aqtobe (aka Aktobe, formerly Akt'ubinsk)
1027Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
1028 4:00 - AKTT 1930 Jun 21 # Aktyubinsk Time
1029 5:00 - AKTT 1981 Apr 1
1030 5:00 1:00 AKTST 1981 Oct 1
1031 6:00 - AKTT 1982 Apr 1
1032 5:00 RussiaAsia AKT%sT 1991
1033 5:00 - AKTT 1991 Dec 16 # independence
bc95ec93
SW
1034 5:00 RussiaAsia AQT%sT 2005 Mar 15 # Aqtobe Time
1035 5:00 - AQTT
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MD
1036# Mangghystau
1037# Aqtau was not founded until 1963, but it represents an inhabited region,
1038# so include time stamps before 1963.
1039Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2
1040 4:00 - FORT 1930 Jun 21 # Fort Shevchenko T
1041 5:00 - FORT 1963
1042 5:00 - SHET 1981 Oct 1 # Shevchenko Time
1043 6:00 - SHET 1982 Apr 1
1044 5:00 RussiaAsia SHE%sT 1991
1045 5:00 - SHET 1991 Dec 16 # independence
ba5ba9da 1046 5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time
bc95ec93 1047 4:00 RussiaAsia AQT%sT 2005 Mar 15
9ffe4b14 1048 5:00 - AQTT
984263bc
MD
1049# West Kazakhstan
1050Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk
1051 4:00 - URAT 1930 Jun 21 # Ural'sk time
1052 5:00 - URAT 1981 Apr 1
1053 5:00 1:00 URAST 1981 Oct 1
1054 6:00 - URAT 1982 Apr 1
1055 5:00 RussiaAsia URA%sT 1989 Mar 26 2:00
1056 4:00 RussiaAsia URA%sT 1991
1057 4:00 - URAT 1991 Dec 16 # independence
bc95ec93 1058 4:00 RussiaAsia ORA%sT 2005 Mar 15 # Oral Time
9ffe4b14 1059 5:00 - ORAT
984263bc
MD
1060
1061# Kyrgyzstan (Kirgizstan)
1062# Transitions through 1991 are from Shanks.
9ffe4b14
SW
1063
1064# From Paul Eggert (2005-08-15):
1065# According to an article dated today in the Kyrgyzstan Development Gateway
1066# <http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml>
1067# Kyrgyzstan is canceling the daylight saving time system. I take the article
1068# to mean that they will leave their clocks at 6 hours ahead of UTC.
e1e23b59
SW
1069# From Malik Abdugaliev (2005-09-21):
1070# Our government cancels daylight saving time 6th of August 2005.
1071# From 2005-08-12 our GMT-offset is +6, w/o any daylight saving.
9ffe4b14 1072
984263bc 1073# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
e1e23b59
SW
1074Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S
1075Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 -
1076Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S
1077Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 -
984263bc
MD
1078# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1079Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
1080 5:00 - FRUT 1930 Jun 21 # Frunze Time
1081 6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
1082 5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
e1e23b59
SW
1083 5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time
1084 6:00 - KGT
984263bc
MD
1085
1086###############################################################################
1087
1088# Korea (North and South)
1089
1090# From Guy Harris:
1091# According to someone at the Korean Times in San Francisco,
1092# Daylight Savings Time was not observed until 1987. He did not know
1093# at what time of day DST starts or ends.
1094
1095# From Shanks:
1096# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1097Rule ROK 1960 only - May 15 0:00 1:00 D
1098Rule ROK 1960 only - Sep 13 0:00 0 S
1099Rule ROK 1987 1988 - May Sun<=14 0:00 1:00 D
1100Rule ROK 1987 1988 - Oct Sun<=14 0:00 0 S
1101
1102# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1103Zone Asia/Seoul 8:27:52 - LMT 1890
1104 8:30 - KST 1904 Dec
1105 9:00 - KST 1928
1106 8:30 - KST 1932
1107 9:00 - KST 1954 Mar 21
1108 8:00 ROK K%sT 1961 Aug 10
1109 8:30 - KST 1968 Oct
1110 9:00 ROK K%sT
1111Zone Asia/Pyongyang 8:23:00 - LMT 1890
1112 8:30 - KST 1904 Dec
1113 9:00 - KST 1928
1114 8:30 - KST 1932
1115 9:00 - KST 1954 Mar 21
1116 8:00 - KST 1961 Aug 10
1117 9:00 - KST
1118
1119###############################################################################
1120
1121# Kuwait
1122# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1123Zone Asia/Kuwait 3:11:56 - LMT 1950
1124 3:00 - AST
1125
1126# Laos
1127# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1128Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan
1129 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
1130 7:00 - ICT 1912 May
1131 8:00 - ICT 1931 May
1132 7:00 - ICT
1133
1134# Lebanon
1135# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1136Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
1137Rule Lebanon 1920 only - Oct 25 0:00 0 -
1138Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
1139Rule Lebanon 1921 only - Oct 3 0:00 0 -
1140Rule Lebanon 1922 only - Mar 26 0:00 1:00 S
1141Rule Lebanon 1922 only - Oct 8 0:00 0 -
1142Rule Lebanon 1923 only - Apr 22 0:00 1:00 S
1143Rule Lebanon 1923 only - Sep 16 0:00 0 -
1144Rule Lebanon 1957 1961 - May 1 0:00 1:00 S
1145Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
1146Rule Lebanon 1972 only - Jun 22 0:00 1:00 S
1147Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
1148Rule Lebanon 1973 1977 - May 1 0:00 1:00 S
1149Rule Lebanon 1978 only - Apr 30 0:00 1:00 S
1150Rule Lebanon 1978 only - Sep 30 0:00 0 -
1151Rule Lebanon 1984 1987 - May 1 0:00 1:00 S
1152Rule Lebanon 1984 1991 - Oct 16 0:00 0 -
1153Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
1154Rule Lebanon 1989 only - May 10 0:00 1:00 S
1155Rule Lebanon 1990 1992 - May 1 0:00 1:00 S
1156Rule Lebanon 1992 only - Oct 4 0:00 0 -
1157Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
1158Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
1159Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
1160# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1161Zone Asia/Beirut 2:22:00 - LMT 1880
1162 2:00 Lebanon EE%sT
1163
1164# Malaysia
1165# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1166Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer
1167Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
1168#
984263bc 1169# peninsular Malaysia
ba5ba9da
JR
1170# The data here are taken from Mok Ly Yng (2003-10-30)
1171# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
1172# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1173Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1
1174 6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
1175 7:00 - MALT 1933 Jan 1 # Malaya Time
1176 7:00 0:20 MALST 1936 Jan 1
1177 7:20 - MALT 1941 Sep 1
1178 7:30 - MALT 1942 Feb 16
1179 9:00 - JST 1945 Sep 12
1180 7:30 - MALT 1982 Jan 1
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MD
1181 8:00 - MYT # Malaysia Time
1182# Sabah & Sarawak
ba5ba9da
JR
1183# From Paul Eggert (2003-11-01):
1184# The data here are mostly from Shanks, but the 1942, 1945 and 1982
1185# transition dates are from Mok Ly Yng.
1186# Zone NAME GMTOFF RULES FORMAT [UNTIL]
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MD
1187Zone Asia/Kuching 7:21:20 - LMT 1926 Mar
1188 7:30 - BORT 1933 # Borneo Time
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JR
1189 8:00 NBorneo BOR%sT 1942 Feb 16
1190 9:00 - JST 1945 Sep 12
1191 8:00 - BORT 1982 Jan 1
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MD
1192 8:00 - MYT
1193
1194# Maldives
1195# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1196Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
1197 4:54:00 - MMT 1960 # Male Mean Time
1198 5:00 - MVT # Maldives Time
1199
1200# Mongolia
1201
1202# Shanks says that Mongolia has three time zones, but usno1995 and the CIA map
1203# Standard Time Zones of the World (1997-01)
1204# both say that it has just one.
1205
1206# From Oscar van Vlijmen (1999-12-11):
1207# <a href="http://www.mongoliatourism.gov.mn/general.htm">
1208# General Information Mongolia
1209# </a> (1999-09)
1210# "Time: Mongolia has two time zones. Three westernmost provinces of
1211# Bayan-Ulgii, Uvs, and Hovd are one hour earlier than the capital city, and
1212# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus
1213# eight hours."
1214
1215# From Rives McDow (1999-12-13):
1216# Mongolia discontinued the use of daylight savings time in 1999; 1998
1217# being the last year it was implemented. The dates of implementation I am
1218# unsure of, but most probably it was similar to Russia, except for the time
1219# of implementation may have been different....
1220# Some maps in the past have indicated that there was an additional time
1221# zone in the eastern part of Mongolia, including the provinces of Dornod,
1222# Suhbaatar, and possibly Khentij.
1223
1224# From Paul Eggert (1999-12-15):
1225# Naming and spelling is tricky in Mongolia.
1226# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
1227# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
1228# and sometimes Jirgalanta (with variant spellings), but the name Hovd
1229# is good enough for our purposes.
1230
1231# From Rives McDow (2001-05-13):
1232# In addition to Mongolia starting daylight savings as reported earlier
1233# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28),
1234# there are three time zones.
1235#
1236# Provinces [at 7:00]: Bayan-ulgii, Uvs, Khovd, Zavkhan, Govi-Altai
1237# Provinces [at 8:00]: Khovsgol, Bulgan, Arkhangai, Khentii, Tov,
1238# Bayankhongor, Ovorkhangai, Dundgovi, Dornogovi, Omnogovi
1239# Provinces [at 9:00]: Dornod, Sukhbaatar
1240#
1241# [The province of Selenge is omitted from the above lists.]
1242
9ffe4b14 1243# From Ganbold Ts., Ulaanbaatar (2004-04-17):
ba5ba9da
JR
1244# Daylight saving occurs at 02:00 local time last Saturday of March.
1245# It will change back to normal at 02:00 local time last Saturday of
1246# September.... As I remember this rule was changed in 2001.
1247#
1248# From Paul Eggert (2004-04-17):
1249# For now, assume Rives McDow's informant got confused about Friday vs
1250# Saturday, and that his 2001 dates should have 1 added to them.
1251
9ffe4b14
SW
1252# From Paul Eggert (2005-07-26):
1253# We have wildly conflicting information about Mongolia's time zones.
1254# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says
1255# there is only one time zone and that DST is observed, citing Microsoft
1256# Windows XP as the source. Risto Nykanen (2005-05-16) reports that
1257# travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST.
1258# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in
1259# Washington, DC says there are two time zones, with DST observed.
1260# He also found
1261# <http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1&>
1262# which also says that there is DST, and which has a comment by "Toddius"
1263# (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones.
1264# The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT
1265# and some Eastern provinces are +9 GMT but Sukhbaatar Aimag is SUHK +8.5 GMT.
1266# The SUKH timezone is new this year, it is one of the few things the
1267# parliament passed during the tumultuous winter session."
1268# For now, let's ignore this information, until we have more confirmation.
1269
984263bc
MD
1270# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1271Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S
1272Rule Mongol 1983 only - Oct 1 0:00 0 -
1273# IATA SSIM says 1990s switches occurred at 00:00, but Shanks (1995) lists
1274# them at 02:00s, and McDow says the 2001 switches also occurred at 02:00.
1275# Also, IATA SSIM (1996-09) says 1996-10-25. Go with Shanks through 1998.
1276Rule Mongol 1985 1998 - Mar lastSun 2:00s 1:00 S
1277Rule Mongol 1984 1998 - Sep lastSun 2:00s 0 -
1278# IATA SSIM (1999-09) says Mongolia no longer observes DST.
ba5ba9da
JR
1279Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S
1280Rule Mongol 2001 max - Sep lastSat 2:00 0 -
1281Rule Mongol 2002 max - Mar lastSat 2:00 1:00 S
984263bc
MD
1282
1283# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1284# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
1285Zone Asia/Hovd 6:06:36 - LMT 1905 Aug
1286 6:00 - HOVT 1978 # Hovd Time
1287 7:00 Mongol HOV%sT
1288# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga
1289Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug
1290 7:00 - ULAT 1978 # Ulaanbaatar Time
1291 8:00 Mongol ULA%sT
1292# Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan,
1293# Choybalsan, Sanbejse, Tchoibalsan
1294Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug
1295 7:00 - ULAT 1978
1296 8:00 - ULAT 1983 Apr
1297 9:00 Mongol CHO%sT # Choibalsan Time
1298
1299# Nepal
1300# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1301Zone Asia/Katmandu 5:41:16 - LMT 1920
1302 5:30 - IST 1986
1303 5:45 - NPT # Nepal Time
1304
1305# Oman
1306# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1307Zone Asia/Muscat 3:54:20 - LMT 1920
1308 4:00 - GST
1309
1310# Pakistan
1311
1312# From Rives McDow (2002-03-13):
1313# I have been advised that Pakistan has decided to adopt dst on a
1314# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
1315# and ending at 00:01 local time October 6, 2002. This is what I was
1316# told, but I believe that the actual time of change may be 00:00; the
1317# 00:01 was to make it clear which day it was on.
1318
1319# From Paul Eggert (2002-03-15):
1320# Jesper Norgaard found this URL:
1321# http://www.pak.gov.pk/public/news/app/app06_dec.htm
1322# (dated 2001-12-06) which says that the Cabinet adopted a scheme "to
1323# advance the clocks by one hour on the night between the first
1324# Saturday and Sunday of April and revert to the original position on
1325# 15th October each year". This agrees with McDow's 04-07 at 00:00,
1326# but disagrees about the October transition, and makes it sound like
1327# it's not on a trial basis. Also, the "between the first Saturday
1328# and Sunday of April" phrase, if taken literally, means that the
1329# transition takes place at 00:00 on the first Sunday on or after 04-02.
1330
1331# From Paul Eggert (2003-02-09):
1332# DAWN <http://www.dawn.com/2002/10/06/top13.htm> reported on 2002-10-05
1333# that 2002 DST ended that day at midnight. Go with McDow for now.
1334
1335# From Steffen Thorsen (2003-03-14):
1336# According to http://www.dawn.com/2003/03/07/top15.htm
1337# there will be no DST in Pakistan this year:
1338#
1339# ISLAMABAD, March 6: Information and Media Development Minister Sheikh
1340# Rashid Ahmed on Thursday said the cabinet had reversed a previous
1341# decision to advance clocks by one hour in summer and put them back by
1342# one hour in winter with the aim of saving light hours and energy.
1343#
1344# The minister told a news conference that the experiment had rather
1345# shown 8 per cent higher consumption of electricity.
1346
1347
1348# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1349Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S
1350Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 -
1351# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1352Zone Asia/Karachi 4:28:12 - LMT 1907
1353 5:30 - IST 1942 Sep
1354 5:30 1:00 IST 1945 Oct 15
1355 5:30 - IST 1951 Sep 30
1356 5:00 - KART 1971 Mar 26 # Karachi Time
1357 5:00 Pakistan PK%sT # Pakistan Time
1358
1359# Palestine
1360
9ffe4b14 1361# From Amos Shapir (1998-02-15):
984263bc
MD
1362#
1363# From 1917 until 1948-05-15, all of Palestine, including the parts now
1364# known as the Gaza Strip and the West Bank, was under British rule.
1365# Therefore the rules given for Israel for that period, apply there too...
1366#
1367# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
1368# (except a short occupation by Israel from 1956-11 till 1957-03, but no
1369# time zone was affected then). It was never formally annexed to Egypt,
1370# though.
1371#
1372# The rest of Palestine was under Jordanian rule at that time, formally
1373# annexed in 1950 as the West Bank (and the word "Trans" was dropped from
1374# the country's previous name of "the Hashemite Kingdom of the
1375# Trans-Jordan"). So the rules for Jordan for that time apply. Major
1376# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
1377# East Jerusalem.
1378#
1379# Both areas were occupied by Israel in June 1967, but not annexed (except
1380# for East Jerusalem). They were on Israel time since then; there might
1381# have been a Military Governor's order about time zones, but I'm not aware
1382# of any (such orders may have been issued semi-annually whenever summer
1383# time was in effect, but maybe the legal aspect of time was just neglected).
1384#
1385# The Palestinian Authority was established in 1993, and got hold of most
1386# towns in the West Bank and Gaza by 1995. I know that in order to
1387# demonstrate...independence, they have been switching to
1388# summer time and back on a different schedule than Israel's, but I don't
1389# know when this was started, or what algorithm is used (most likely the
1390# Jordanian one).
1391#
1392# To summarize, the table should probably look something like that:
1393#
1394# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
1395# ------------+-----------+-----------+-----------+-----------
1396# Israel | Zion | Zion | Zion | Zion
1397# West bank | Zion | Jordan | Zion | Jordan
1398# Gaza | Zion | Egypt | Zion | Jordan
1399#
1400# I guess more info may be available from the PA's web page (if/when they
1401# have one).
1402
1403# From Paul Eggert (1998-02-25):
1404# Shanks writes that Gaza did not observe DST until 1957, but we'll go
1405# with Shapir and assume that it observed DST from 1940 through 1947,
1406# and that it used Jordanian rules starting in 1996.
1407# We don't yet need a separate entry for the West Bank, since
1408# the only differences between it and Gaza that we know about
1409# occurred before our cutoff date of 1970.
1410# However, as we get more information, we may need to add entries
1411# for parts of the West Bank as they transitioned from Israel's rules
1412# to Palestine's rules. If you have more info about this, please
1413# send it to tz@elsie.nci.nih.gov for incorporation into future editions.
1414
1415# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
1416# forwarded by Ephraim Silverberg:
1417#
1418# Despite the fact that Israel changed over to daylight savings time
1419# last week, the PLO Authority (PA) has decided not to turn its clocks
1420# one-hour forward at this time. As a sign of independence from Israeli rule,
1421# the PA has decided to implement DST in April.
1422
1423# From Paul Eggert (1999-09-20):
1424# Daoud Kuttab writes in
1425# <a href="http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html">
1426# Holiday havoc
1427# </a> (Jerusalem Post, 1999-04-22) that
1428# the Palestinian National Authority changed to DST on 1999-04-15.
1429# I vaguely recall that they switch back in October (sorry, forgot the source).
1430# For now, let's assume that the spring switch was at 24:00,
1431# and that they switch at 0:00 on the 3rd Fridays of April and October.
1432
aa65d21a
SW
1433# From Paul Eggert (2005-11-22):
1434# Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com.
1435
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MD
1436# The rules for Egypt are stolen from the `africa' file.
1437# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1438Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
1439Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
1440Rule EgyptAsia 1958 only - May 1 0:00 1:00 S
1441Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
1442Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
1443Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
1444
1445Rule Palestine 1999 max - Apr Fri>=15 0:00 1:00 S
aa65d21a
SW
1446Rule Palestine 1999 2003 - Oct Fri>=15 0:00 0 -
1447Rule Palestine 2004 only - Oct 1 1:00 0 -
1448Rule Palestine 2005 max - Oct 4 1:00 0 -
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MD
1449
1450# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1451Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
1452 2:00 Zion EET 1948 May 15
1453 2:00 EgyptAsia EE%sT 1967 Jun 5
1454 2:00 Zion I%sT 1996
1455 2:00 Jordan EE%sT 1999
1456 2:00 Palestine EE%sT
1457
1458# Paracel Is
1459# no information
1460
1461# Philippines
1462# On 1844-08-16, Narciso Claveria, governor-general of the
1463# Philippines, issued a proclamation announcing that 1844-12-30 was to
1464# be immediately followed by 1845-01-01. Robert H. van Gent has a
1465# transcript of the decree in <http://www.phys.uu.nl/~vgent/idl/idl.htm>.
1466# The rest of this data is from Shanks.
1467# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1468Rule Phil 1936 only - Nov 1 0:00 1:00 S
1469Rule Phil 1937 only - Feb 1 0:00 0 -
1470Rule Phil 1954 only - Apr 12 0:00 1:00 S
1471Rule Phil 1954 only - Jul 1 0:00 0 -
1472Rule Phil 1978 only - Mar 22 0:00 1:00 S
1473Rule Phil 1978 only - Sep 21 0:00 0 -
1474# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1475Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31
1476 8:04:00 - LMT 1899 May 11
1477 8:00 Phil PH%sT 1942 May
1478 9:00 - JST 1944 Nov
1479 8:00 Phil PH%sT
1480
1481# Qatar
1482# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1483Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
1484 4:00 - GST 1972 Jun
1485 3:00 - AST
1486
1487# Saudi Arabia
1488# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1489Zone Asia/Riyadh 3:06:52 - LMT 1950
1490 3:00 - AST
1491
1492# Singapore
ba5ba9da
JR
1493# The data here are taken from Mok Ly Yng (2003-10-30)
1494# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
984263bc 1495# Zone NAME GMTOFF RULES FORMAT [UNTIL]
ba5ba9da
JR
1496Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
1497 6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
1498 7:00 - MALT 1933 Jan 1 # Malaya Time
1499 7:00 0:20 MALST 1936 Jan 1
1500 7:20 - MALT 1941 Sep 1
1501 7:30 - MALT 1942 Feb 16
1502 9:00 - JST 1945 Sep 12
984263bc 1503 7:30 - MALT 1965 Aug 9 # independence
ba5ba9da 1504 7:30 - SGT 1982 Jan 1 # Singapore Time
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MD
1505 8:00 - SGT
1506
1507# Spratly Is
1508# no information
1509
1510# Sri Lanka
1511# From Paul Eggert (1996-09-03):
1512# "Sri Lanka advances clock by an hour to avoid blackout"
1513# (www.virtual-pc.com/lankaweb/news/items/240596-2.html, 1996-05-24,
1514# no longer available as of 1999-08-17)
1515# reported ``the country's standard time will be put forward by one hour at
1516# midnight Friday (1830 GMT) `in the light of the present power crisis'.''
1517#
1518# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
1519# by Shamindra in
1520# <a href="news:54rka5$m5h@mtinsc01-mgt.ops.worldnet.att.net">
1521# Daily News - Hot News Section (1996-10-26)
1522# </a>:
1523# With effect from 12.30 a.m. on 26th October 1996
1524# Sri Lanka will be six (06) hours ahead of GMT.
1525
1526# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1527Zone Asia/Colombo 5:19:24 - LMT 1880
1528 5:19:32 - MMT 1906 # Moratuwa Mean Time
1529 5:30 - IST 1942 Jan 5
1530 5:30 0:30 IHST 1942 Sep
1531 5:30 1:00 IST 1945 Oct 16 2:00
1532 5:30 - IST 1996 May 25 0:00
1533 6:30 - LKT 1996 Oct 26 0:30
1534 6:00 - LKT
1535
1536# Syria
1537# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1538Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S
1539Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
1540Rule Syria 1962 only - Apr 29 2:00 1:00 S
1541Rule Syria 1962 only - Oct 1 2:00 0 -
1542Rule Syria 1963 1965 - May 1 2:00 1:00 S
1543Rule Syria 1963 only - Sep 30 2:00 0 -
1544Rule Syria 1964 only - Oct 1 2:00 0 -
1545Rule Syria 1965 only - Sep 30 2:00 0 -
1546Rule Syria 1966 only - Apr 24 2:00 1:00 S
1547Rule Syria 1966 1976 - Oct 1 2:00 0 -
1548Rule Syria 1967 1978 - May 1 2:00 1:00 S
1549Rule Syria 1977 1978 - Sep 1 2:00 0 -
1550Rule Syria 1983 1984 - Apr 9 2:00 1:00 S
1551Rule Syria 1983 1984 - Oct 1 2:00 0 -
1552Rule Syria 1986 only - Feb 16 2:00 1:00 S
1553Rule Syria 1986 only - Oct 9 2:00 0 -
1554Rule Syria 1987 only - Mar 1 2:00 1:00 S
1555Rule Syria 1987 1988 - Oct 31 2:00 0 -
1556Rule Syria 1988 only - Mar 15 2:00 1:00 S
1557Rule Syria 1989 only - Mar 31 2:00 1:00 S
1558Rule Syria 1989 only - Oct 1 2:00 0 -
1559Rule Syria 1990 only - Apr 1 2:00 1:00 S
1560Rule Syria 1990 only - Sep 30 2:00 0 -
1561Rule Syria 1991 only - Apr 1 0:00 1:00 S
1562Rule Syria 1991 1992 - Oct 1 0:00 0 -
1563Rule Syria 1992 only - Apr 8 0:00 1:00 S
1564Rule Syria 1993 only - Mar 26 0:00 1:00 S
1565Rule Syria 1993 only - Sep 25 0:00 0 -
1566# IATA SSIM (1998-02) says 1998-04-02;
1567# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
1568# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
1569# ignore all these claims and go with Shanks.
1570Rule Syria 1994 1996 - Apr 1 0:00 1:00 S
1571Rule Syria 1994 max - Oct 1 0:00 0 -
1572Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S
1573Rule Syria 1999 max - Apr 1 0:00 1:00 S
1574# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1575Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq
1576 2:00 Syria EE%sT
1577
1578# Tajikistan
1579# From Shanks.
1580# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1581Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
1582 5:00 - DUST 1930 Jun 21 # Dushanbe Time
1583 6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
1584 5:00 1:00 DUSST 1991 Sep 9 2:00s
1585 5:00 - TJT # Tajikistan Time
1586
1587# Thailand
1588# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1589Zone Asia/Bangkok 6:42:04 - LMT 1880
1590 6:42:04 - BMT 1920 Apr # Bangkok Mean Time
1591 7:00 - ICT
1592
1593# Turkmenistan
1594# From Shanks.
1595# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1596Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad
1597 4:00 - ASHT 1930 Jun 21 # Ashkhabad Time
1598 5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
1599 4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence
1600 4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
1601 5:00 - TMT
1602
1603# United Arab Emirates
1604# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1605Zone Asia/Dubai 3:41:12 - LMT 1920
1606 4:00 - GST
1607
1608# Uzbekistan
1609# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1610Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2
1611 4:00 - SAMT 1930 Jun 21 # Samarkand Time
1612 5:00 - SAMT 1981 Apr 1
1613 5:00 1:00 SAMST 1981 Oct 1
1614 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00 # Tashkent Time
1615 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
1616 5:00 RussiaAsia UZ%sT 1992
1617 5:00 RussiaAsia UZ%sT 1993
1618 5:00 - UZT
1619Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
1620 5:00 - TAST 1930 Jun 21 # Tashkent Time
1621 6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00s
1622 5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
1623 5:00 RussiaAsia UZ%sT 1992
1624 5:00 RussiaAsia UZ%sT 1993
1625 5:00 - UZT
1626
1627# Vietnam
9ffe4b14 1628# From Paul Eggert (1993-11-18):
984263bc
MD
1629# Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
1630# We'll stick with the traditional name for now.
1631# From Shanks:
1632# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1633Zone Asia/Saigon 7:06:40 - LMT 1906 Jun 9
1634 7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
1635 7:00 - ICT 1912 May
1636 8:00 - ICT 1931 May
1637 7:00 - ICT
1638
1639# Yemen
1640# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1641Zone Asia/Aden 3:00:48 - LMT 1950
1642 3:00 - AST