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34850bd5 1# <pre>
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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
933b0a8d 7# tz@iana.org for general use in the future).
984263bc 8
bd7414aa 9# From Paul Eggert (2006-03-22):
984263bc 10# A good source for time zone historical data outside the U.S. is
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11# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
12# San Diego: ACS Publications, Inc. (2003).
984263bc 13#
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14# For data circa 1899, a common source is:
15# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
16# <http://www.jstor.org/stable/1774359>.
17#
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18# Gwillim Law writes that a good source
19# for recent time zone data is the International Air Transport
20# Association's Standard Schedules Information Manual (IATA SSIM),
21# published semiannually. Law sent in several helpful summaries
22# of the IATA's data after 1990.
23#
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24# Except where otherwise noted, Shanks & Pottenger is the source for
25# entries through 1990, and IATA SSIM is the source for entries afterwards.
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26#
27# Earlier editions of these tables used the North American style (e.g. ARST and
28# ARDT for Argentine Standard and Daylight Time), but the following quote
29# suggests that it's better to use European style (e.g. ART and ARST).
30# I suggest the use of _Summer time_ instead of the more cumbersome
31# _daylight-saving time_. _Summer time_ seems to be in general use
32# in Europe and South America.
33# -- E O Cutler, _New York Times_ (1937-02-14), quoted in
34# H L Mencken, _The American Language: Supplement I_ (1960), p 466
35#
36# Earlier editions of these tables also used the North American style
37# for time zones in Brazil, but this was incorrect, as Brazilians say
38# "summer time". Reinaldo Goulart, a Sao Paulo businessman active in
39# the railroad sector, writes (1999-07-06):
40# The subject of time zones is currently a matter of discussion/debate in
41# Brazil. Let's say that "the Brasilia time" is considered the
42# "official time" because Brasilia is the capital city.
43# The other three time zones are called "Brasilia time "minus one" or
44# "plus one" or "plus two". As far as I know there is no such
45# name/designation as "Eastern Time" or "Central Time".
46# So I invented the following (English-language) abbreviations for now.
47# Corrections are welcome!
48# std dst
49# -2:00 FNT FNST Fernando de Noronha
50# -3:00 BRT BRST Brasilia
51# -4:00 AMT AMST Amazon
52# -5:00 ACT ACST Acre
53
54###############################################################################
55
56###############################################################################
57
58# Argentina
59
60# From Bob Devine (1988-01-28):
61# Argentina: first Sunday in October to first Sunday in April since 1976.
62# Double Summer time from 1969 to 1974. Switches at midnight.
63
64# From U. S. Naval Observatory (1988-01-199):
65# ARGENTINA 3 H BEHIND UTC
66
9ffe4b14 67# From Hernan G. Otero (1995-06-26):
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68# I am sending modifications to the Argentine time zone table...
69# AR was chosen because they are the ISO letters that represent Argentina.
70
71# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
72Rule Arg 1930 only - Dec 1 0:00 1:00 S
73Rule Arg 1931 only - Apr 1 0:00 0 -
74Rule Arg 1931 only - Oct 15 0:00 1:00 S
75Rule Arg 1932 1940 - Mar 1 0:00 0 -
76Rule Arg 1932 1939 - Nov 1 0:00 1:00 S
77Rule Arg 1940 only - Jul 1 0:00 1:00 S
78Rule Arg 1941 only - Jun 15 0:00 0 -
79Rule Arg 1941 only - Oct 15 0:00 1:00 S
80Rule Arg 1943 only - Aug 1 0:00 0 -
81Rule Arg 1943 only - Oct 15 0:00 1:00 S
82Rule Arg 1946 only - Mar 1 0:00 0 -
83Rule Arg 1946 only - Oct 1 0:00 1:00 S
84Rule Arg 1963 only - Oct 1 0:00 0 -
85Rule Arg 1963 only - Dec 15 0:00 1:00 S
86Rule Arg 1964 1966 - Mar 1 0:00 0 -
87Rule Arg 1964 1966 - Oct 15 0:00 1:00 S
88Rule Arg 1967 only - Apr 2 0:00 0 -
89Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S
90Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 -
91Rule Arg 1974 only - Jan 23 0:00 1:00 S
92Rule Arg 1974 only - May 1 0:00 0 -
93Rule Arg 1988 only - Dec 1 0:00 1:00 S
94#
9ffe4b14 95# From Hernan G. Otero (1995-06-26):
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96# These corrections were contributed by InterSoft Argentina S.A.,
97# obtaining the data from the:
98# Talleres de Hidrografia Naval Argentina
99# (Argentine Naval Hydrography Institute)
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100Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 -
101Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S
102#
9ffe4b14 103# From Hernan G. Otero (1995-06-26):
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104# From this moment on, the law that mandated the daylight saving
105# time corrections was derogated and no more modifications
106# to the time zones (for daylight saving) are now made.
107#
108# From Rives McDow (2000-01-10):
109# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time,
110# which did not result in the switch of a time zone, as they stayed 9 hours
111# from the International Date Line.
112Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S
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113# From Paul Eggert (2007-12-28):
114# DST was set to expire on March 5, not March 3, but since it was converted
115# to standard time on March 3 it's more convenient for us to pretend that
116# it ended on March 3.
117Rule Arg 2000 only - Mar 3 0:00 0 -
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118#
119# From Peter Gradelski via Steffen Thorsen (2000-03-01):
120# We just checked with our Sao Paulo office and they say the government of
121# Argentina decided not to become one of the countries that go on or off DST.
122# So Buenos Aires should be -3 hours from GMT at all times.
123#
9ffe4b14 124# From Fabian L. Arce Jofre (2000-04-04):
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125# The law that claimed DST for Argentina was derogated by President Fernando
126# de la Rua on March 2, 2000, because it would make people spend more energy
127# in the winter time, rather than less. The change took effect on March 3.
128#
129# From Mariano Absatz (2001-06-06):
130# one of the major newspapers here in Argentina said that the 1999
131# Timezone Law (which never was effectively applied) will (would?) be
132# in effect.... The article is at
133# http://ar.clarin.com/diario/2001-06-06/e-01701.htm
134# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted
135# 1999-09-17, and published 1999-09-21. The official publication is at:
136# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF
137# Regretfully, you have to subscribe (and pay) for the on-line version....
138#
139# (2001-06-12):
140# the timezone for Argentina will not change next Sunday.
141# Apparently it will do so on Sunday 24th....
142# http://ar.clarin.com/diario/2001-06-12/s-03501.htm
143#
144# (2001-06-25):
145# Last Friday (yes, the last working day before the date of the change), the
146# Senate annulled the 1999 law that introduced the changes later postponed.
147# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm
148# It remains the vote of the Deputies..., but it will be the same....
149# This kind of things had always been done this way in Argentina.
150# We are still -03:00 all year round in all of the country.
151#
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152# From Steffen Thorsen (2007-12-21):
153# A user (Leonardo Chaim) reported that Argentina will adopt DST....
154# all of the country (all Zone-entries) are affected. News reports like
155# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate
156# that Argentina will use DST next year as well, from October to
157# March, although exact rules are not given.
158#
159# From Jesper Norgaard Welen (2007-12-26)
160# The last hurdle of Argentina DST is over, the proposal was approved in
161# the lower chamber too (Deputados) with a vote 192 for and 2 against.
162# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to
163# the original scanned proposal, where the dates and the zero hours are
164# clear and unambiguous...This is the article about final approval:
165# <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996">
166# http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996
167# </a>
168#
169# From Paul Eggert (2007-12-22):
170# For dates after mid-2008, the following rules are my guesses and
171# are quite possibly wrong, but are more likely than no DST at all.
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172
173# From Alexander Krivenyshev (2008-09-05):
174# As per message from Carlos Alberto Fonseca Arauz (Nicaragua),
175# Argentina will start DST on Sunday October 19, 2008.
176#
177# <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina03.html">
178# http://www.worldtimezone.com/dst_news/dst_news_argentina03.html
179# </a>
180# OR
181# <a href="http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)">
182# http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)
183# </a>
184
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185# From Rodrigo Severo (2008-10-06):
186# Here is some info available at a Gentoo bug related to TZ on Argentina's DST:
187# ...
188# ------- Comment #1 from [jmdocile] 2008-10-06 16:28 0000 -------
189# Hi, there is a problem with timezone-data-2008e and maybe with
190# timezone-data-2008f
191# Argentinian law [Number] 25.155 is no longer valid.
192# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm">
193# http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm
194# </a>
195# The new one is law [Number] 26.350
196# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm">
197# http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm
198# </a>
199# So there is no summer time in Argentina for now.
200
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201# From Mariano Absatz (2008-10-20):
202# Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina
203# From 2008-10-19 until 2009-03-15
204# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01">
205# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01
206# </a>
207#
208# Decree 1705/2008 excepting 12 Provinces from applying DST in the summer 2008/2009:
209# Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La Pampa, Neuquen, Rio Negro, Chubut, Santa Cruz
210# and Tierra del Fuego
211# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01">
212# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01
213# </a>
214#
215# Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying
216# it will not apply DST either (even when it was not included in Decree 1705/2008)
217# <a href="http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc">
218# http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc
219# </a>
220
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221# From fullinet (2009-10-18):
222# As announced in
223# <a hef="http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356">
224# http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356
225# </a>
226# (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change")
227#
228# "Por el momento, el Gobierno Nacional resolvio no modificar la hora
229# oficial, decision que estaba en estudio para su implementacion el
230# domingo 18 de octubre. Desde el Ministerio de Planificacion se anuncio
231# que la Argentina hoy, en estas condiciones meteorologicas, no necesita
232# la modificacion del huso horario, ya que 2009 nos encuentra con
233# crecimiento en la produccion y distribucion energetica."
234
cd57c7c2 235Rule Arg 2007 only - Dec 30 0:00 1:00 S
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236Rule Arg 2008 2009 - Mar Sun>=15 0:00 0 -
237Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S
63562808 238
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239# From Mariano Absatz (2004-05-21):
240# Today it was officially published that the Province of Mendoza is changing
241# its timezone this winter... starting tomorrow night....
242# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf
243# From Paul Eggert (2004-05-24):
244# It's Law No. 7,210. This change is due to a public power emergency, so for
245# now we'll assume it's for this year only.
984263bc 246#
bd7414aa 247# From Paul Eggert (2006-03-22):
984263bc 248# <a href="http://www.spicasc.net/horvera.html">
bd7414aa 249# Hora de verano para la Republica Argentina (2003-06-08)
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250# </a> says that standard time in Argentina from 1894-10-31
251# to 1920-05-01 was -4:16:48.25. Go with this more-precise value
bd7414aa 252# over Shanks & Pottenger.
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253#
254# From Mariano Absatz (2004-06-05):
255# These media articles from a major newspaper mostly cover the current state:
256# http://www.lanacion.com.ar/04/05/27/de_604825.asp
257# http://www.lanacion.com.ar/04/05/28/de_605203.asp
258#
259# The following eight (8) provinces pulled clocks back to UTC-04:00 at
260# midnight Monday May 31st. (that is, the night between 05/31 and 06/01).
261# Apparently, all nine provinces would go back to UTC-03:00 at the same
262# time in October 17th.
263#
264# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz,
265# Tierra del Fuego, Tucuman.
266#
267# From Mariano Absatz (2004-06-14):
268# ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00
269# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's
270# annoyance with the change is much higher than the power savings obtained....
271#
272# From Gwillim Law (2004-06-14):
273# http://www.lanacion.com.ar/04/06/10/de_609078.asp ...
274# "The time change in Tierra del Fuego was a conflicted decision from
275# the start. The government had decreed that the measure would take
276# effect on June 1, but a normative error forced the new time to begin
277# three days earlier, from a Saturday to a Sunday....
278# Our understanding was that the change was originally scheduled to take place
279# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other
280# provinces). Sunday was May 30, only two days earlier. So the article
281# contains a contradiction. I would give more credence to the Saturday/Sunday
282# date than the "three days earlier" phrase, and conclude that Tierra del
283# Fuego set its clocks back at 2004-05-30 00:00.
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284#
285# From Steffen Thorsen (2004-10-05):
286# The previous law 7210 which changed the province of Mendoza's time zone
287# back in May have been modified slightly in a new law 7277, which set the
288# new end date to 2004-09-26 (original date was 2004-10-17).
289# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf
290#
291# From Mariano Absatz (2004-10-05):
292# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between
293# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00
294# at midnight between Saturday, July 24th and Sunday, July 25th....
295# http://www.sanjuan.gov.ar/prensa/archivo/000329.html
296# http://www.sanjuan.gov.ar/prensa/archivo/000426.html
297# http://www.sanjuan.gov.ar/prensa/archivo/000441.html
984263bc 298
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299# From Alex Krivenyshev (2008-01-17):
300# Here are articles that Argentina Province San Luis is planning to end DST
301# as earlier as upcoming Monday January 21, 2008 or February 2008:
302#
303# Provincia argentina retrasa reloj y marca diferencia con resto del pais
304# (Argentine Province delayed clock and mark difference with the rest of the
305# country)
306# <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel">
307# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel
308# </a>
309#
310# Es inminente que en San Luis atrasen una hora los relojes
311# (It is imminent in San Luis clocks one hour delay)
312# <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414">
313# http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414
314# </a>
315#
316# <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html">
317# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html
318# </a>
319
320# From Jesper Norgaard Welen (2008-01-18):
321# The page of the San Luis provincial government
322# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812">
323# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812
324# </a>
325# confirms what Alex Krivenyshev has earlier sent to the tz
326# emailing list about that San Luis plans to return to standard
327# time much earlier than the rest of the country. It also
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328# confirms that upon request the provinces San Juan and Mendoza
329# refused to follow San Luis in this change.
330#
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331# The change is supposed to take place Monday the 21.st at 0:00
332# hours. As far as I understand it if this goes ahead, we need
333# a new timezone for San Luis (although there are also documented
334# independent changes in the southamerica file of San Luis in
335# 1990 and 1991 which has not been confirmed).
336
337# From Jesper Norgaard Welen (2008-01-25):
338# Unfortunately the below page has become defunct, about the San Luis
339# time change. Perhaps because it now is part of a group of pages "Most
340# important pages of 2008."
341#
342# You can use
343# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834">
344# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834
345# </a>
346# instead it seems. Or use "Buscador" from the main page of the San Luis
347# government, and fill in "huso" and click OK, and you will get 3 pages
348# from which the first one is identical to the above.
349
350# From Mariano Absatz (2008-01-28):
351# I can confirm that the Province of San Luis (and so far only that
352# province) decided to go back to UTC-3 effective midnight Jan 20th 2008
353# (that is, Monday 21st at 0:00 is the time the clocks were delayed back
354# 1 hour), and they intend to keep UTC-3 as their timezone all year round
355# (that is, unless they change their mind any minute now).
356#
357# So we'll have to add yet another city to 'southamerica' (I think San
358# Luis city is the mos populated city in the Province, so it'd be
359# America/Argentina/San_Luis... of course I can't remember if San Luis's
360# history of particular changes goes along with Mendoza or San Juan :-(
361# (I only remember not being able to collect hard facts about San Luis
362# back in 2004, when these provinces changed to UTC-4 for a few days, I
363# mailed them personally and never got an answer).
364
a36b983e 365# From Paul Eggert (2008-06-30):
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366# Unless otherwise specified, data are from Shanks & Pottenger through 1992,
367# from the IATA otherwise. As noted below, Shanks & Pottenger say that
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368# America/Cordoba split into 6 subregions during 1991/1992, one of which
369# was America/San_Luis, but we haven't verified this yet so for now we'll
370# keep America/Cordoba a single region rather than splitting it into the
371# other 5 subregions.
372
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373# From Mariano Absatz (2009-03-13):
374# Yesterday (with our usual 2-day notice) the Province of San Luis
375# decided that next Sunday instead of "staying" @utc-03:00 they will go
376# to utc-04:00 until the second Saturday in October...
377#
378# The press release is at
379# <a href="http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102">
380# http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102
381# </a>
382# (I couldn't find the decree, but
383# <a href="http://www.sanluis.gov.ar">
384# www.sanluis.gov.ar
385# <a/>
386# is the official page for the Province Government).
387#
80e7e01d 388# There's also a note in only one of the major national papers ...
63562808 389# http://www.lanacion.com.ar/nota.asp?nota_id=1107912
63562808 390#
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391# The press release says [quick and dirty translation]:
392# ... announced that next Sunday, at 00:00, Puntanos (the San Luis
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393# inhabitants) will have to turn back one hour their clocks
394#
395# Since then, San Luis will establish its own Province timezone. Thus,
396# during 2009, this timezone change will run from 00:00 the third Sunday
397# in March until 24:00 of the second Saturday in October.
398
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399# From Mariano Absatz (2009-10-16):
400# ...the Province of San Luis is a case in itself.
0d01c093 401#
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402# The Law at
403# <a href="http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276>"
404# http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276
0d01c093 405# </a>
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406# is ambiguous because establishes a calendar from the 2nd Sunday in
407# October at 0:00 thru the 2nd Saturday in March at 24:00 and the
408# complement of that starting on the 2nd Sunday of March at 0:00 and
409# ending on the 2nd Saturday of March at 24:00.
984263bc 410#
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411# This clearly breaks every time the 1st of March or October is a Sunday.
412#
413# IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd
414# Sunday of October and March.
415#
416# The problem is that the changes in the rest of the Provinces that did
417# change in 2007/2008, were made according to the Federal Law and Decrees
418# that did so on the 3rd Sunday of October and March.
419#
420# In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday
421# (October 11th) at 0:00.
422#
423# So I guess a new set of rules, besides "Arg", must be made and the last
424# America/Argentina/San_Luis entries should change to use these...
425#
426# I'm enclosing a patch that does what I say... regretfully, the San Luis
427# timezone must be called "WART/WARST" even when most of the time (like,
428# right now) WARST == ART... that is, since last Sunday, all the country
429# is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest
430# of the country calls it "ART".
431# ...
0d01c093 432
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433# From Alexander Krivenyshev (2010-04-09):
434# According to news reports from El Diario de la Republica Province San
435# Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time
436# after April 11, 2010--will continue to have same time as rest of
437# Argentina (UTC-3) (no DST).
438#
439# Confirmaron la pr&oacute;rroga del huso horario de verano (Spanish)
440# <a href="http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9">
441# http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9
442# </a>
443# or (some English translation):
444# <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina08.html">
445# http://www.worldtimezone.com/dst_news/dst_news_argentina08.html
446# </a>
447
448# From Mariano Absatz (2010-04-12):
449# yes...I can confirm this...and given that San Luis keeps calling
450# UTC-03:00 "summer time", we should't just let San Luis go back to "Arg"
451# rules...San Luis is still using "Western ARgentina Time" and it got
452# stuck on Summer daylight savings time even though the summer is over.
453
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454# From Paul Eggert (2013-02-21):
455# Milne says Cordoba time was -4:16:48.2. Round to the nearest second.
456
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457# Zone NAME GMTOFF RULES FORMAT [UNTIL]
458#
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459# Buenos Aires (BA), Capital Federal (CF),
460Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
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461 -4:16:48 - CMT 1920 May # Cordoba Mean Time
462 -4:00 - ART 1930 Dec
463 -4:00 Arg AR%sT 1969 Oct 5
464 -3:00 Arg AR%sT 1999 Oct 3
465 -4:00 Arg AR%sT 2000 Mar 3
cd57c7c2 466 -3:00 Arg AR%sT
984263bc 467#
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468# Cordoba (CB), Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN),
469# Chaco (CC), Formosa (FM), Santiago del Estero (SE)
984263bc 470#
bd7414aa 471# Shanks & Pottenger also make the following claims, which we haven't verified:
984263bc 472# - Formosa switched to -3:00 on 1991-01-07.
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473# - Misiones switched to -3:00 on 1990-12-29.
474# - Chaco switched to -3:00 on 1991-01-04.
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475# - Santiago del Estero switched to -4:00 on 1991-04-01,
476# then to -3:00 on 1991-04-26.
984263bc 477#
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478Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31
479 -4:16:48 - CMT 1920 May
480 -4:00 - ART 1930 Dec
481 -4:00 Arg AR%sT 1969 Oct 5
482 -3:00 Arg AR%sT 1991 Mar 3
483 -4:00 - WART 1991 Oct 20
484 -3:00 Arg AR%sT 1999 Oct 3
485 -4:00 Arg AR%sT 2000 Mar 3
cd57c7c2 486 -3:00 Arg AR%sT
ba5ba9da 487#
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488# Salta (SA), La Pampa (LP), Neuquen (NQ), Rio Negro (RN)
489Zone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31
490 -4:16:48 - CMT 1920 May
491 -4:00 - ART 1930 Dec
492 -4:00 Arg AR%sT 1969 Oct 5
493 -3:00 Arg AR%sT 1991 Mar 3
494 -4:00 - WART 1991 Oct 20
495 -3:00 Arg AR%sT 1999 Oct 3
496 -4:00 Arg AR%sT 2000 Mar 3
497 -3:00 Arg AR%sT 2008 Oct 18
498 -3:00 - ART
499#
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500# Tucuman (TM)
501Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31
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502 -4:16:48 - CMT 1920 May
503 -4:00 - ART 1930 Dec
504 -4:00 Arg AR%sT 1969 Oct 5
505 -3:00 Arg AR%sT 1991 Mar 3
506 -4:00 - WART 1991 Oct 20
507 -3:00 Arg AR%sT 1999 Oct 3
508 -4:00 Arg AR%sT 2000 Mar 3
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509 -3:00 - ART 2004 Jun 1
510 -4:00 - WART 2004 Jun 13
cd57c7c2 511 -3:00 Arg AR%sT
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512#
513# La Rioja (LR)
514Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31
515 -4:16:48 - CMT 1920 May
516 -4:00 - ART 1930 Dec
517 -4:00 Arg AR%sT 1969 Oct 5
518 -3:00 Arg AR%sT 1991 Mar 1
519 -4:00 - WART 1991 May 7
520 -3:00 Arg AR%sT 1999 Oct 3
521 -4:00 Arg AR%sT 2000 Mar 3
522 -3:00 - ART 2004 Jun 1
523 -4:00 - WART 2004 Jun 20
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524 -3:00 Arg AR%sT 2008 Oct 18
525 -3:00 - ART
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526#
527# San Juan (SJ)
528Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31
529 -4:16:48 - CMT 1920 May
530 -4:00 - ART 1930 Dec
531 -4:00 Arg AR%sT 1969 Oct 5
532 -3:00 Arg AR%sT 1991 Mar 1
533 -4:00 - WART 1991 May 7
534 -3:00 Arg AR%sT 1999 Oct 3
535 -4:00 Arg AR%sT 2000 Mar 3
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536 -3:00 - ART 2004 May 31
537 -4:00 - WART 2004 Jul 25
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538 -3:00 Arg AR%sT 2008 Oct 18
539 -3:00 - ART
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540#
541# Jujuy (JY)
ba5ba9da 542Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31
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543 -4:16:48 - CMT 1920 May
544 -4:00 - ART 1930 Dec
545 -4:00 Arg AR%sT 1969 Oct 5
546 -3:00 Arg AR%sT 1990 Mar 4
547 -4:00 - WART 1990 Oct 28
548 -4:00 1:00 WARST 1991 Mar 17
549 -4:00 - WART 1991 Oct 6
550 -3:00 1:00 ARST 1992
551 -3:00 Arg AR%sT 1999 Oct 3
552 -4:00 Arg AR%sT 2000 Mar 3
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553 -3:00 Arg AR%sT 2008 Oct 18
554 -3:00 - ART
984263bc 555#
9ffe4b14 556# Catamarca (CT), Chubut (CH)
ba5ba9da 557Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31
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558 -4:16:48 - CMT 1920 May
559 -4:00 - ART 1930 Dec
560 -4:00 Arg AR%sT 1969 Oct 5
561 -3:00 Arg AR%sT 1991 Mar 3
562 -4:00 - WART 1991 Oct 20
563 -3:00 Arg AR%sT 1999 Oct 3
564 -4:00 Arg AR%sT 2000 Mar 3
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565 -3:00 - ART 2004 Jun 1
566 -4:00 - WART 2004 Jun 20
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567 -3:00 Arg AR%sT 2008 Oct 18
568 -3:00 - ART
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569#
570# Mendoza (MZ)
ba5ba9da 571Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31
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572 -4:16:48 - CMT 1920 May
573 -4:00 - ART 1930 Dec
574 -4:00 Arg AR%sT 1969 Oct 5
575 -3:00 Arg AR%sT 1990 Mar 4
576 -4:00 - WART 1990 Oct 15
577 -4:00 1:00 WARST 1991 Mar 1
578 -4:00 - WART 1991 Oct 15
579 -4:00 1:00 WARST 1992 Mar 1
580 -4:00 - WART 1992 Oct 18
581 -3:00 Arg AR%sT 1999 Oct 3
582 -4:00 Arg AR%sT 2000 Mar 3
ba5ba9da 583 -3:00 - ART 2004 May 23
bc95ec93 584 -4:00 - WART 2004 Sep 26
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585 -3:00 Arg AR%sT 2008 Oct 18
586 -3:00 - ART
ba5ba9da 587#
e4a74243 588# San Luis (SL)
ddd6bafc 589
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590Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 -
591Rule SanLuis 2007 2009 - Oct Sun>=8 0:00 1:00 S
ddd6bafc 592
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593Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31
594 -4:16:48 - CMT 1920 May
595 -4:00 - ART 1930 Dec
596 -4:00 Arg AR%sT 1969 Oct 5
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597 -3:00 Arg AR%sT 1990
598 -3:00 1:00 ARST 1990 Mar 14
599 -4:00 - WART 1990 Oct 15
600 -4:00 1:00 WARST 1991 Mar 1
601 -4:00 - WART 1991 Jun 1
602 -3:00 - ART 1999 Oct 3
603 -4:00 1:00 WARST 2000 Mar 3
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SW
604 -3:00 - ART 2004 May 31
605 -4:00 - WART 2004 Jul 25
606 -3:00 Arg AR%sT 2008 Jan 21
ddd6bafc 607 -4:00 SanLuis WAR%sT
e4a74243 608#
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609# Santa Cruz (SC)
610Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
611 -4:16:48 - CMT 1920 May # Cordoba Mean Time
612 -4:00 - ART 1930 Dec
613 -4:00 Arg AR%sT 1969 Oct 5
614 -3:00 Arg AR%sT 1999 Oct 3
615 -4:00 Arg AR%sT 2000 Mar 3
616 -3:00 - ART 2004 Jun 1
617 -4:00 - WART 2004 Jun 20
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618 -3:00 Arg AR%sT 2008 Oct 18
619 -3:00 - ART
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620#
621# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
622Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
623 -4:16:48 - CMT 1920 May # Cordoba Mean Time
624 -4:00 - ART 1930 Dec
625 -4:00 Arg AR%sT 1969 Oct 5
626 -3:00 Arg AR%sT 1999 Oct 3
627 -4:00 Arg AR%sT 2000 Mar 3
628 -3:00 - ART 2004 May 30
629 -4:00 - WART 2004 Jun 20
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630 -3:00 Arg AR%sT 2008 Oct 18
631 -3:00 - ART
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632
633# Aruba
634# Zone NAME GMTOFF RULES FORMAT [UNTIL]
635Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
636 -4:30 - ANT 1965 # Netherlands Antilles Time
637 -4:00 - AST
638
639# Bolivia
640# Zone NAME GMTOFF RULES FORMAT [UNTIL]
641Zone America/La_Paz -4:32:36 - LMT 1890
642 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT
643 -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST
644 -4:00 - BOT # Bolivia Time
645
646# Brazil
647
9ffe4b14 648# From Paul Eggert (1993-11-18):
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MD
649# The mayor of Rio recently attempted to change the time zone rules
650# just in his city, in order to leave more summer time for the tourist trade.
651# The rule change lasted only part of the day;
652# the federal government refused to follow the city's rules, and business
653# was in a chaos, so the mayor backed down that afternoon.
654
655# From IATA SSIM (1996-02):
656# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS),
657# Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ),
658# Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO),
659# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL].
660# [The last three states are new to this issue of the IATA SSIM.]
661
662# From Gwillim Law (1996-10-07):
663# Geography, history (Tocantins was part of Goias until 1989), and other
664# sources of time zone information lead me to believe that AL, SE, and TO were
665# always in BR1, and so the only change was whether or not they observed DST....
666# The earliest issue of the SSIM I have is 2/91. Each issue from then until
667# 9/95 says that DST is observed only in the ten states I quoted from 9/95,
668# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2
669# (UTC-4).... The other two time zones given for Brazil are BR3, which is
670# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is
671# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's
672# become part of the state of Pernambuco). The boundary between BR1 and BR2
673# has never been clearly stated. They've simply been called East and West.
674# However, some conclusions can be drawn from another IATA manual: the Airline
675# Coding Directory, which lists close to 400 airports in Brazil. For each
676# airport it gives a time zone which is coded to the SSIM. From that
677# information, I'm led to conclude that the states of Amapa (AP), Ceara (CE),
678# Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do
679# Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST.
680
681# From Marcos Tadeu (1998-09-27):
682# <a href="http://pcdsh01.on.br/verao1.html">
683# Brazilian official page
684# </a>
685
686# From Jesper Norgaard (2000-11-03):
687# [For an official list of which regions in Brazil use which time zones, see:]
688# http://pcdsh01.on.br/Fusbr.htm
689# http://pcdsh01.on.br/Fusbrhv.htm
690
691# From Celso Doria via David Madeo (2002-10-09):
692# The reason for the delay this year has to do with elections in Brazil.
693#
694# Unlike in the United States, elections in Brazil are 100% computerized and
695# the results are known almost immediately. Yesterday, it was the first
696# round of the elections when 115 million Brazilians voted for President,
697# Governor, Senators, Federal Deputies, and State Deputies. Nobody is
698# counting (or re-counting) votes anymore and we know there will be a second
699# round for the Presidency and also for some Governors. The 2nd round will
700# take place on October 27th.
701#
702# The reason why the DST will only begin November 3rd is that the thousands
703# of electoral machines used cannot have their time changed, and since the
704# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM,
705# the Government decided to postpone DST, instead of changing the Constitution
706# (maybe, for the next elections, it will be possible to change the clock)...
707
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708# From Rodrigo Severo (2004-10-04):
709# It's just the biannual change made necessary by the much hyped, supposedly
710# modern Brazilian eletronic voting machines which, apparently, can't deal
711# with a time change between the first and the second rounds of the elections.
712
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713# From Steffen Thorsen (2007-09-20):
714# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00:
715# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975
716
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717# From Paul Schulze (2008-06-24):
718# ...by law number 11.662 of April 24, 2008 (published in the "Diario
719# Oficial da Uniao"...) in Brazil there are changes in the timezones,
720# effective today (00:00am at June 24, 2008) as follows:
721#
722# a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the
723# part of the Amazonas state that had this timezone now being put to the
724# timezone UTC+4
725# b) The whole Para state now is put at timezone UTC+3, instead of just
726# part of it, as was before.
727#
728# This change follows a proposal of senator Tiao Viana of Acre state, that
729# proposed it due to concerns about open television channels displaying
730# programs inappropriate to youths in the states that had the timezone
731# UTC+5 too early in the night. In the occasion, some more corrections
732# were proposed, trying to unify the timezones of any given state. This
733# change modifies timezone rules defined in decree 2.784 of 18 June,
734# 1913.
735
736# From Rodrigo Severo (2008-06-24):
737# Just correcting the URL:
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SW
738# <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008">
739# https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008
a36b983e
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740# </a>
741#
742# As a result of the above Decree I believe the America/Rio_Branco
743# timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall
e01e21dd 744# be created to represent the...west side of the Para State. I
a36b983e
SW
745# suggest this new timezone be called Santarem as the most
746# important/populated city in the affected area.
747#
748# This new timezone would be the same as the Rio_Branco timezone up to
749# the 2008/06/24 change which would be to UTC-3 instead of UTC-4.
750
751# From Alex Krivenyshev (2008-06-24):
752# This is a quick reference page for New and Old Brazil Time Zones map.
753# <a href="http://www.worldtimezone.com/brazil-time-new-old.php">
754# http://www.worldtimezone.com/brazil-time-new-old.php
755# </a>
756#
757# - 4 time zones replaced by 3 time zones-eliminating time zone UTC- 05
758# (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western
759# part of Par state is moving to one timezone UTC- 03 (from UTC -04).
760
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761# From Paul Eggert (2002-10-10):
762# The official decrees referenced below are mostly taken from
763# <a href="http://pcdsh01.on.br/DecHV.html">
764# Decretos sobre o Horario de Verao no Brasil
17f48456 765# </a>.
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767# From Steffen Thorsen (2008-08-29):
768# As announced by the government and many newspapers in Brazil late
769# yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and
770# it will end on 2009-02-15 (current rule for Brazil is fine). Based on
771# past years experience with the elections, there was a good chance that
772# the start was postponed to November, but it did not happen this year.
773#
774# It has not yet been posted to http://pcdsh01.on.br/DecHV.html
775#
776# An official page about it:
777# <a href="http://www.mme.gov.br/site/news/detail.do?newsId=16722">
778# http://www.mme.gov.br/site/news/detail.do?newsId=16722
779# </a>
780# Note that this link does not always work directly, but must be accessed
781# by going to
bfd634de 782# <a href="http://www.mme.gov.br/first">
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783# http://www.mme.gov.br/first
784# </a>
785#
786# One example link that works directly:
787# <a href="http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54">
788# http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54
789# (Portuguese)
790# </a>
791#
792# We have a written a short article about it as well:
793# <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html">
794# http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html
795# </a>
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796#
797# From Alexander Krivenyshev (2011-10-04):
798# State Bahia will return to Daylight savings time this year after 8 years off.
799# The announcement was made by Governor Jaques Wagner in an interview to a
800# television station in Salvador.
801
802# In Portuguese:
803# <a href="http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html">
804# http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html
805# </a> and
806# <a href="http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html">
807# http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html
808# </a>
809
810# From Guilherme Bernardes Rodrigues (2011-10-07):
811# There is news in the media, however there is still no decree about it.
80e7e01d 812# I just send a e-mail to Zulmira Brandao at
7f2a8808 813# <a href="http://pcdsh01.on.br/">http://pcdsh01.on.br/</a> the
80e7e01d 814# official agency about time in Brazil, and she confirmed that the old rule is
7f2a8808 815# still in force.
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817# From Guilherme Bernardes Rodrigues (2011-10-14)
818# It's official, the President signed a decree that includes Bahia in summer
819# time.
820# [ and in a second message (same day): ]
821# I found the decree.
822#
823# DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011
824# Link :
825# <a href="http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6">
826# http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6
827# </a>
828
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829# From Kelley Cook (2012-10-16):
830# The governor of state of Bahia in Brazil announced on Thursday that
831# due to public pressure, he is reversing the DST policy they implemented
832# last year and will not be going to Summer Time on October 21st....
833# http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia
834
835# From Rodrigo Severo (2012-10-16):
836# Tocantins state will have DST.
837# http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html
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839# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
840# Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01)
841# Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10)
842Rule Brazil 1931 only - Oct 3 11:00 1:00 S
843Rule Brazil 1932 1933 - Apr 1 0:00 0 -
844Rule Brazil 1932 only - Oct 3 0:00 1:00 S
845# Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10)
846# revoked DST.
847# Decree <a href="http://pcdsh01.on.br/HV27496.htm">27,496</a> (1949-11-24)
848# Decree <a href="http://pcdsh01.on.br/HV27998.htm">27,998</a> (1950-04-13)
849Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S
850Rule Brazil 1950 only - Apr 16 1:00 0 -
851Rule Brazil 1951 1952 - Apr 1 0:00 0 -
852# Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24)
853Rule Brazil 1953 only - Mar 1 0:00 0 -
854# Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30)
855# revoked DST.
856# Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18)
857# established DST from 1963-10-23 00:00 to 1964-02-29 00:00
858# in SP, RJ, GB, MG, ES, due to the prolongation of the drought.
859# Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03)
860# extended the above decree to all of the national territory on 12-09.
861Rule Brazil 1963 only - Dec 9 0:00 1:00 S
862# Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25)
863# extended summer time by one day to 1964-03-01 00:00 (start of school).
864Rule Brazil 1964 only - Mar 1 0:00 0 -
865# Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27)
866Rule Brazil 1965 only - Jan 31 0:00 1:00 S
867Rule Brazil 1965 only - Mar 31 0:00 0 -
868# Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22)
869Rule Brazil 1965 only - Dec 1 0:00 1:00 S
870# Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18)
871Rule Brazil 1966 1968 - Mar 1 0:00 0 -
872Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S
873# Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15)
874# revoked DST.
875# Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27)
876Rule Brazil 1985 only - Nov 2 0:00 1:00 S
877# Decree 92,310 (1986-01-21)
878# Decree 92,463 (1986-03-13)
879Rule Brazil 1986 only - Mar 15 0:00 0 -
880# Decree 93,316 (1986-10-01)
881Rule Brazil 1986 only - Oct 25 0:00 1:00 S
882Rule Brazil 1987 only - Feb 14 0:00 0 -
883# Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22)
884Rule Brazil 1987 only - Oct 25 0:00 1:00 S
885Rule Brazil 1988 only - Feb 7 0:00 0 -
886# Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12)
887# except for the states of AC, AM, PA, RR, RO, and AP (then a territory)
888Rule Brazil 1988 only - Oct 16 0:00 1:00 S
889Rule Brazil 1989 only - Jan 29 0:00 0 -
890# Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21)
891# with the same exceptions
892Rule Brazil 1989 only - Oct 15 0:00 1:00 S
893Rule Brazil 1990 only - Feb 11 0:00 0 -
894# Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17)
895# adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF.
896# Decree 99,629 (1990-10-19) adds BA, MT.
897Rule Brazil 1990 only - Oct 21 0:00 1:00 S
898Rule Brazil 1991 only - Feb 17 0:00 0 -
899# <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25)
900# adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF.
901Rule Brazil 1991 only - Oct 20 0:00 1:00 S
902Rule Brazil 1992 only - Feb 9 0:00 0 -
903# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16)
904# adopted by same states.
905Rule Brazil 1992 only - Oct 25 0:00 1:00 S
906Rule Brazil 1993 only - Jan 31 0:00 0 -
907# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
908# adopted by same states, plus AM.
ba5ba9da
JR
909# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22;
910# web page corrected 2004-01-07) adopted by same states, minus AM.
984263bc 911# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)
ba5ba9da 912# adopted by same states, plus MT and TO.
984263bc
MD
913# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
914# adds AL, SE.
915Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S
916Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 -
917Rule Brazil 1996 only - Feb 11 0:00 0 -
918# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04)
919# adopted by same states, minus AL, SE.
920Rule Brazil 1996 only - Oct 6 0:00 1:00 S
921Rule Brazil 1997 only - Feb 16 0:00 0 -
9ffe4b14 922# From Daniel C. Sobral (1998-02-12):
984263bc
MD
923# In 1997, the DS began on October 6. The stated reason was that
924# because international television networks ignored Brazil's policy on DS,
925# they bought the wrong times on satellite for coverage of Pope's visit.
926# This year, the ending date of DS was postponed to March 1
927# to help dealing with the shortages of electric power.
928#
984263bc
MD
929# Decree 2,317 (1997-09-04), adopted by same states.
930Rule Brazil 1997 only - Oct 6 0:00 1:00 S
931# Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a>
932# (1998-02-10)
933Rule Brazil 1998 only - Mar 1 0:00 0 -
934# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11)
935# adopted by the same states as before.
936Rule Brazil 1998 only - Oct 11 0:00 1:00 S
937Rule Brazil 1999 only - Feb 21 0:00 0 -
938# Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a>
939# (1999-08-23) adopted by same states.
940# Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30)
941# adds SE, AL, PB, PE, RN, CE, PI, MA and RR.
942Rule Brazil 1999 only - Oct 3 0:00 1:00 S
943Rule Brazil 2000 only - Feb 27 0:00 0 -
944# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06)
945# adopted by the same states as before.
946# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13)
947# repeals DST in PE and RR, effective 2000-10-15 00:00.
948# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17)
949# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00.
950# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a>
951# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.
952Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S
17f48456 953Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 -
984263bc 954# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.
a36b983e 955# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a>
984263bc 956Rule Brazil 2002 only - Nov 3 0:00 1:00 S
ba5ba9da 957# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO.
a36b983e 958# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a>
bc95ec93
SW
959Rule Brazil 2003 only - Oct 19 0:00 1:00 S
960# Decree 5,223 (2004-10-01) reestablishes DST in MT.
a36b983e 961# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a>
bc95ec93 962Rule Brazil 2004 only - Nov 2 0:00 1:00 S
aa65d21a
SW
963# Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19),
964# adopted by the same states as before.
17f48456 965Rule Brazil 2005 only - Oct 16 0:00 1:00 S
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SW
966# Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03),
967# adopted by the same states as before.
968Rule Brazil 2006 only - Nov 5 0:00 1:00 S
969Rule Brazil 2007 only - Feb 25 0:00 0 -
a36b983e
SW
970# Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26),
971# adopted by the same states as before.
234dfcd0 972Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S
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SW
973# From Frederico A. C. Neves (2008-09-10):
974# Acording to this decree
975# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm">
976# http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm
977# </a>
978# [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the
979# 3rd Feb Sunday. There is an exception on the return date when this is
980# the Carnival Sunday then the return date will be the next Sunday...
981Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S
982Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 -
983Rule Brazil 2012 only - Feb Sun>=22 0:00 0 -
984Rule Brazil 2013 2014 - Feb Sun>=15 0:00 0 -
985Rule Brazil 2015 only - Feb Sun>=22 0:00 0 -
986Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 -
987Rule Brazil 2023 only - Feb Sun>=22 0:00 0 -
988Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 -
989Rule Brazil 2026 only - Feb Sun>=22 0:00 0 -
990Rule Brazil 2027 2033 - Feb Sun>=15 0:00 0 -
991Rule Brazil 2034 only - Feb Sun>=22 0:00 0 -
992Rule Brazil 2035 2036 - Feb Sun>=15 0:00 0 -
993Rule Brazil 2037 only - Feb Sun>=22 0:00 0 -
994# From Arthur David Olson (2008-09-29):
995# The next is wrong in some years but is better than nothing.
996Rule Brazil 2038 max - Feb Sun>=15 0:00 0 -
997
ba5ba9da 998# The latest ruleset listed above says that the following states observe DST:
bc95ec93 999# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
984263bc 1000
984263bc
MD
1001# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1002#
ba5ba9da 1003# Fernando de Noronha (administratively part of PE)
984263bc
MD
1004Zone America/Noronha -2:09:40 - LMT 1914
1005 -2:00 Brazil FN%sT 1990 Sep 17
ba5ba9da
JR
1006 -2:00 - FNT 1999 Sep 30
1007 -2:00 Brazil FN%sT 2000 Oct 15
1008 -2:00 - FNT 2001 Sep 13
1009 -2:00 Brazil FN%sT 2002 Oct 1
984263bc 1010 -2:00 - FNT
ba5ba9da
JR
1011# Other Atlantic islands have no permanent settlement.
1012# These include Trindade and Martin Vaz (administratively part of ES),
1013# Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE).
1014# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01;
1015# it also included the Penedos.
984263bc
MD
1016#
1017# Amapa (AP), east Para (PA)
1018# East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu.
ba5ba9da
JR
1019# The division between east and west Para is the river Xingu.
1020# In the north a very small part from the river Javary (now Jari I guess,
1021# the border with Amapa) to the Amazon, then to the Xingu.
984263bc
MD
1022Zone America/Belem -3:13:56 - LMT 1914
1023 -3:00 Brazil BR%sT 1988 Sep 12
1024 -3:00 - BRT
1025#
a36b983e
SW
1026# west Para (PA)
1027# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
1028Zone America/Santarem -3:38:48 - LMT 1914
1029 -4:00 Brazil AM%sT 1988 Sep 12
1030 -4:00 - AMT 2008 Jun 24 00:00
1031 -3:00 - BRT
1032#
984263bc
MD
1033# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN),
1034# Paraiba (PB)
1035Zone America/Fortaleza -2:34:00 - LMT 1914
1036 -3:00 Brazil BR%sT 1990 Sep 17
1037 -3:00 - BRT 1999 Sep 30
1038 -3:00 Brazil BR%sT 2000 Oct 22
1039 -3:00 - BRT 2001 Sep 13
1040 -3:00 Brazil BR%sT 2002 Oct 1
1041 -3:00 - BRT
1042#
1043# Pernambuco (PE) (except Atlantic islands)
1044Zone America/Recife -2:19:36 - LMT 1914
1045 -3:00 Brazil BR%sT 1990 Sep 17
1046 -3:00 - BRT 1999 Sep 30
1047 -3:00 Brazil BR%sT 2000 Oct 15
1048 -3:00 - BRT 2001 Sep 13
1049 -3:00 Brazil BR%sT 2002 Oct 1
1050 -3:00 - BRT
1051#
1052# Tocantins (TO)
1053Zone America/Araguaina -3:12:48 - LMT 1914
1054 -3:00 Brazil BR%sT 1990 Sep 17
1055 -3:00 - BRT 1995 Sep 14
ba5ba9da 1056 -3:00 Brazil BR%sT 2003 Sep 24
f21b88be
SW
1057 -3:00 - BRT 2012 Oct 21
1058 -3:00 Brazil BR%sT
984263bc
MD
1059#
1060# Alagoas (AL), Sergipe (SE)
1061Zone America/Maceio -2:22:52 - LMT 1914
1062 -3:00 Brazil BR%sT 1990 Sep 17
1063 -3:00 - BRT 1995 Oct 13
1064 -3:00 Brazil BR%sT 1996 Sep 4
1065 -3:00 - BRT 1999 Sep 30
1066 -3:00 Brazil BR%sT 2000 Oct 22
1067 -3:00 - BRT 2001 Sep 13
1068 -3:00 Brazil BR%sT 2002 Oct 1
1069 -3:00 - BRT
1070#
ba5ba9da
JR
1071# Bahia (BA)
1072# There are too many Salvadors elsewhere, so use America/Bahia instead
1073# of America/Salvador.
1074Zone America/Bahia -2:34:04 - LMT 1914
1075 -3:00 Brazil BR%sT 2003 Sep 24
e9ad9bde 1076 -3:00 - BRT 2011 Oct 16
f21b88be
SW
1077 -3:00 Brazil BR%sT 2012 Oct 21
1078 -3:00 - BRT
ba5ba9da
JR
1079#
1080# Goias (GO), Distrito Federal (DF), Minas Gerais (MG),
984263bc
MD
1081# Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR),
1082# Santa Catarina (SC), Rio Grande do Sul (RS)
1083Zone America/Sao_Paulo -3:06:28 - LMT 1914
1084 -3:00 Brazil BR%sT 1963 Oct 23 00:00
1085 -3:00 1:00 BRST 1964
1086 -3:00 Brazil BR%sT
1087#
ba5ba9da
JR
1088# Mato Grosso do Sul (MS)
1089Zone America/Campo_Grande -3:38:28 - LMT 1914
984263bc
MD
1090 -4:00 Brazil AM%sT
1091#
ba5ba9da
JR
1092# Mato Grosso (MT)
1093Zone America/Cuiaba -3:44:20 - LMT 1914
1094 -4:00 Brazil AM%sT 2003 Sep 24
bc95ec93
SW
1095 -4:00 - AMT 2004 Oct 1
1096 -4:00 Brazil AM%sT
ba5ba9da 1097#
a36b983e 1098# Rondonia (RO)
984263bc
MD
1099Zone America/Porto_Velho -4:15:36 - LMT 1914
1100 -4:00 Brazil AM%sT 1988 Sep 12
1101 -4:00 - AMT
1102#
1103# Roraima (RR)
1104Zone America/Boa_Vista -4:02:40 - LMT 1914
1105 -4:00 Brazil AM%sT 1988 Sep 12
1106 -4:00 - AMT 1999 Sep 30
1107 -4:00 Brazil AM%sT 2000 Oct 15
1108 -4:00 - AMT
1109#
1110# east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto
ba5ba9da
JR
1111# The great circle line from Tabatinga to Porto Acre divides
1112# east from west Amazonas.
984263bc
MD
1113Zone America/Manaus -4:00:04 - LMT 1914
1114 -4:00 Brazil AM%sT 1988 Sep 12
1115 -4:00 - AMT 1993 Sep 28
1116 -4:00 Brazil AM%sT 1994 Sep 22
1117 -4:00 - AMT
1118#
1119# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant,
1120# Eirunepe, Envira, Ipixuna
1121Zone America/Eirunepe -4:39:28 - LMT 1914
1122 -5:00 Brazil AC%sT 1988 Sep 12
1123 -5:00 - ACT 1993 Sep 28
1124 -5:00 Brazil AC%sT 1994 Sep 22
a36b983e
SW
1125 -5:00 - ACT 2008 Jun 24 00:00
1126 -4:00 - AMT
984263bc
MD
1127#
1128# Acre (AC)
1129Zone America/Rio_Branco -4:31:12 - LMT 1914
1130 -5:00 Brazil AC%sT 1988 Sep 12
a36b983e
SW
1131 -5:00 - ACT 2008 Jun 24 00:00
1132 -4:00 - AMT
984263bc
MD
1133
1134# Chile
1135
1136# From Eduardo Krell (1995-10-19):
1137# The law says to switch to DST at midnight [24:00] on the second SATURDAY
1138# of October.... The law is the same for March and October.
1139# (1998-09-29):
1140# Because of the drought this year, the government decided to go into
1141# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ...
1142# (unless there's another dry season next year, I guess).
1143
1144# From Julio I. Pacheco Troncoso (1999-03-18):
1145# Because of the same drought, the government decided to end DST later,
1146# on April 3, (one-time change).
1147
ff8424c5
SW
1148# From Oscar van Vlijmen (2006-10-08):
1149# http://www.horaoficial.cl/cambio.htm
984263bc 1150
ff8424c5
SW
1151# From Jesper Norgaard Welen (2006-10-08):
1152# I think that there are some obvious mistakes in the suggested link
1153# from Oscar van Vlijmen,... for instance entry 66 says that GMT-4
1154# ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15
1155# (they should have been 1990-09-15 and 1990-09-16 respectively), but
1156# anyhow it clears up some doubts too.
984263bc 1157
880368e2
SW
1158# From Paul Eggert (2006-12-27):
1159# The following data for Chile and America/Santiago are from
1160# <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by
1161# Jesper Norgaard Welen. The data for Pacific/Easter are from Shanks
1162# & Pottenger, except with DST transitions after 1932 cloned from
1163# America/Santiago. The pre-1980 Pacific/Easter data are dubious,
1164# but we have no other source.
984263bc 1165
a6282357
SW
1166# From German Poo-Caaman~o (2008-03-03):
1167# Due to drought, Chile extends Daylight Time in three weeks. This
1168# is one-time change (Saturday 3/29 at 24:00 for America/Santiago
1169# and Saturday 3/29 at 22:00 for Pacific/Easter)
63562808 1170# The Supreme Decree is located at
a6282357
SW
1171# <a href="http://www.shoa.cl/servicios/supremo316.pdf">
1172# http://www.shoa.cl/servicios/supremo316.pdf
1173# </a>
1174# and the instructions for 2008 are located in:
1175# <a href="http://www.horaoficial.cl/cambio.htm">
1176# http://www.horaoficial.cl/cambio.htm
1177# </a>.
1178
a36b983e 1179# From Jose Miguel Garrido (2008-03-05):
a6282357 1180# ...
63562808 1181# You could see the announces of the change on
a6282357
SW
1182# <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm">
1183# http://www.shoa.cl/noticias/2008/04hora/hora.htm
1184# </a>.
1185
5a0c5ddc
SW
1186# From Angel Chiang (2010-03-04):
1187# Subject: DST in Chile exceptionally extended to 3 April due to earthquake
1188# <a href="http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098">
1189# http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098
1190# </a>
1191# (in Spanish, last paragraph).
1192#
1193# This is breaking news. There should be more information available later.
1194
1195# From Arthur Daivd Olson (2010-03-06):
1196# Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch.
1197
e7b7f7f5
SW
1198# From Glenn Eychaner (2011-03-02): [geychaner@mac.com]
1199# It appears that the Chilean government has decided to postpone the
1200# change from summer time to winter time again, by three weeks to April
1201# 2nd:
1202# <a href="http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651">
1203# http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651
1204# </a>
1205#
1206# This is not yet reflected in the offical "cambio de hora" site, but
1207# probably will be soon:
1208# <a href="http://www.horaoficial.cl/cambio.htm">
1209# http://www.horaoficial.cl/cambio.htm
1210# </a>
1211
1212# From Arthur David Olson (2011-03-02):
1213# The emol.com article mentions a water shortage as the cause of the
1214# postponement, which may mean that it's not a permanent change.
f891a7e1
SW
1215
1216# From Glenn Eychaner (2011-03-28):
1217# The article:
1218# <a href="http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E}">
1219# http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E}
1220# </a>
1221#
1222# In English:
1223# Chile's clocks will go back an hour this year on the 7th of May instead
1224# of this Saturday. They will go forward again the 3rd Saturday in
1225# August, not in October as they have since 1968. This is a pilot plan
1226# which will be reevaluated in 2012.
1227
bca44125
SW
1228# From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23):
1229# As stated in the website of the Chilean Energy Ministry
1230# http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html
1231# The Chilean Government has decided to postpone the entrance into winter time
1232# (to leave DST) from March 11 2012 to April 28th 2012. The decision has not
1233# been yet formalized but it will within the next days.
1234# Quote from the website communication:
1235#
1236# 6. For the year 2012, the dates of entry into winter time will be as follows:
1237# a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at
1238# 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00
1239# of the same day.
1240# b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is,
1241# at 23:59:59, instead of passing to 0:00, the time should be adjusted to be
1242# 01:00 on September 2.
80e7e01d
SW
1243
1244# From Steffen Thorsen (2013-02-15):
1245# According to several news sources, Chile has extended DST this year,
1246# they will end DST later and start DST earlier than planned. They
1247# hope to save energy. The new end date is 2013-04-28 00:00 and new
1248# start date is 2013-09-08 00:00....
1249# http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm
bca44125
SW
1250
1251# NOTE: ChileAQ rules for Antarctic bases are stored separately in the
1252# 'antarctica' file.
1253
984263bc 1254# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
ff8424c5 1255Rule Chile 1927 1932 - Sep 1 0:00 1:00 S
984263bc 1256Rule Chile 1928 1932 - Apr 1 0:00 0 -
ff8424c5
SW
1257Rule Chile 1942 only - Jun 1 4:00u 0 -
1258Rule Chile 1942 only - Aug 1 5:00u 1:00 S
1259Rule Chile 1946 only - Jul 15 4:00u 1:00 S
1260Rule Chile 1946 only - Sep 1 3:00u 0:00 -
1261Rule Chile 1947 only - Apr 1 4:00u 0 -
1262Rule Chile 1968 only - Nov 3 4:00u 1:00 S
1263Rule Chile 1969 only - Mar 30 3:00u 0 -
1264Rule Chile 1969 only - Nov 23 4:00u 1:00 S
1265Rule Chile 1970 only - Mar 29 3:00u 0 -
1266Rule Chile 1971 only - Mar 14 3:00u 0 -
1267Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S
1268Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 -
1269Rule Chile 1973 only - Sep 30 4:00u 1:00 S
1270Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S
1271Rule Chile 1987 only - Apr 12 3:00u 0 -
1272Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 -
1273Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S
1274Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S
1275Rule Chile 1990 only - Mar 18 3:00u 0 -
1276Rule Chile 1990 only - Sep 16 4:00u 1:00 S
1277Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 -
1278Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S
1279Rule Chile 1997 only - Mar 30 3:00u 0 -
1280Rule Chile 1998 only - Mar Sun>=9 3:00u 0 -
984263bc
MD
1281Rule Chile 1998 only - Sep 27 4:00u 1:00 S
1282Rule Chile 1999 only - Apr 4 3:00u 0 -
f891a7e1 1283Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S
a6282357
SW
1284Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 -
1285# N.B.: the end of March 29 in Chile is March 30 in Universal time,
1286# which is used below in specifying the transition.
1287Rule Chile 2008 only - Mar 30 3:00u 0 -
5a0c5ddc 1288Rule Chile 2009 only - Mar Sun>=9 3:00u 0 -
f891a7e1
SW
1289Rule Chile 2010 only - Apr Sun>=1 3:00u 0 -
1290Rule Chile 2011 only - May Sun>=2 3:00u 0 -
bca44125 1291Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S
80e7e01d
SW
1292Rule Chile 2012 max - Apr Sun>=23 3:00u 0 -
1293Rule Chile 2012 max - Sep Sun>=2 4:00u 1:00 S
ff8424c5 1294# IATA SSIM anomalies: (1992-02) says 1992-03-14;
984263bc
MD
1295# (1996-09) says 1998-03-08. Ignore these.
1296# Zone NAME GMTOFF RULES FORMAT [UNTIL]
ff8424c5
SW
1297Zone America/Santiago -4:42:46 - LMT 1890
1298 -4:42:46 - SMT 1910 # Santiago Mean Time
1299 -5:00 - CLT 1916 Jul 1 # Chile Time
1300 -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time
1301 -4:00 - CLT 1919 Jul 1 # Chile Time
1302 -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time
1303 -5:00 Chile CL%sT 1947 May 22 # Chile Time
984263bc 1304 -4:00 Chile CL%sT
880368e2 1305Zone Pacific/Easter -7:17:44 - LMT 1890
70fc4940 1306 -7:17:28 - EMT 1932 Sep # Easter Mean Time
880368e2 1307 -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time
984263bc
MD
1308 -6:00 Chile EAS%sT
1309#
1310# Sala y Gomez Island is like Pacific/Easter.
1311# Other Chilean locations, including Juan Fernandez Is, San Ambrosio,
1312# San Felix, and Antarctic bases, are like America/Santiago.
1313
1314# Colombia
80e7e01d
SW
1315
1316# Milne gives 4:56:16.4 for Bogota time in 1899; round to nearest. He writes,
1317# "A variation of fifteen minutes in the public clocks of Bogota is not rare."
1318
984263bc 1319# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
bd7414aa
SW
1320Rule CO 1992 only - May 3 0:00 1:00 S
1321Rule CO 1993 only - Apr 4 0:00 0 -
984263bc 1322# Zone NAME GMTOFF RULES FORMAT [UNTIL]
80e7e01d
SW
1323Zone America/Bogota -4:56:16 - LMT 1884 Mar 13
1324 -4:56:16 - BMT 1914 Nov 23 # Bogota Mean Time
984263bc
MD
1325 -5:00 CO CO%sT # Colombia Time
1326# Malpelo, Providencia, San Andres
1327# no information; probably like America/Bogota
1328
1329# Curacao
80e7e01d
SW
1330
1331# Milne gives 4:35:46.9 for Curacao mean time; round to nearest.
bd7414aa 1332#
8393cd87 1333# From Paul Eggert (2006-03-22):
bd7414aa
SW
1334# Shanks & Pottenger say that The Bottom and Philipsburg have been at
1335# -4:00 since standard time was introduced on 1912-03-02; and that
1336# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from
1337# 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say
1338# Saba Island has been like Curacao.
8393cd87 1339# This all predates our 1970 cutoff, though.
bd7414aa
SW
1340#
1341# By July 2007 Curacao and St Maarten are planned to become
1342# associated states within the Netherlands, much like Aruba;
1343# Bonaire, Saba and St Eustatius would become directly part of the
1344# Netherlands as Kingdom Islands. This won't affect their time zones
1345# though, as far as we know.
8393cd87 1346#
984263bc 1347# Zone NAME GMTOFF RULES FORMAT [UNTIL]
80e7e01d 1348Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad
984263bc
MD
1349 -4:30 - ANT 1965 # Netherlands Antilles Time
1350 -4:00 - AST
1351
ffa9a577
SW
1352# From Arthur David Olson (2011-06-15):
1353# At least for now, use links for places with new iso3166 codes.
1354# The name "Lower Prince's Quarter" is both longer than fourteen charaters
1355# and contains an apostrophe; use "Lower_Princes" below.
1356
1357Link America/Curacao America/Lower_Princes # Sint Maarten
1358Link America/Curacao America/Kralendijk # Bonaire, Sint Estatius and Saba
1359
984263bc 1360# Ecuador
8393cd87 1361#
80e7e01d
SW
1362# Milne says the Sentral and South American Telegraph Company used -5:24:15.
1363#
8393cd87
SW
1364# From Paul Eggert (2007-03-04):
1365# Apparently Ecuador had a failed experiment with DST in 1992.
1366# <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and
1367# <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both
1368# talk about "hora Sixto". Leave this alone for now, as we have no data.
1369#
984263bc
MD
1370# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1371Zone America/Guayaquil -5:19:20 - LMT 1890
1372 -5:14:00 - QMT 1931 # Quito Mean Time
1373 -5:00 - ECT # Ecuador Time
1374Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno
1375 -5:00 - ECT 1986
1376 -6:00 - GALT # Galapagos Time
1377
1378# Falklands
1379
bd7414aa
SW
1380# From Paul Eggert (2006-03-22):
1381# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except
1382# the IATA gives 1996-09-08. Go with Shanks & Pottenger.
984263bc
MD
1383
1384# From Falkland Islands Government Office, London (2001-01-22)
1385# via Jesper Norgaard:
1386# ... the clocks revert back to Local Mean Time at 2 am on Sunday 15
1387# April 2001 and advance one hour to summer time at 2 am on Sunday 2
1388# September. It is anticipated that the clocks will revert back at 2
1389# am on Sunday 21 April 2002 and advance to summer time at 2 am on
1390# Sunday 1 September.
1391
1392# From Rives McDow (2001-02-13):
1393#
1394# I have communicated several times with people there, and the last
1395# time I had communications that was helpful was in 1998. Here is
1396# what was said then:
1397#
1398# "The general rule was that Stanley used daylight saving and the Camp
1399# did not. However for various reasons many people in the Camp have
1400# started to use daylight saving (known locally as 'Stanley Time')
1401# There is no rule as to who uses daylight saving - it is a matter of
1402# personal choice and so it is impossible to draw a map showing who
1403# uses it and who does not. Any list would be out of date as soon as
1404# it was produced. This year daylight saving ended on April 18/19th
1405# and started again on September 12/13th. I do not know what the rule
1406# is, but can find out if you like. We do not change at the same time
1407# as UK or Chile."
1408#
1409# I did have in my notes that the rule was "Second Saturday in Sep at
1410# 0:00 until third Saturday in Apr at 0:00". I think that this does
1411# not agree in some cases with Shanks; is this true?
1412#
1413# Also, there is no mention in the list that some areas in the
1414# Falklands do not use DST. I have found in my communications there
1415# that these areas are on the western half of East Falkland and all of
1416# West Falkland. Stanley is the only place that consistently observes
1417# DST. Again, as in other places in the world, the farmers don't like
1418# it. West Falkland is almost entirely sheep farmers.
1419#
1420# I know one lady there that keeps a list of which farm keeps DST and
1421# which doesn't each year. She runs a shop in Stanley, and says that
1422# the list changes each year. She uses it to communicate to her
1423# customers, catching them when they are home for lunch or dinner.
1424
1425# From Paul Eggert (2001-03-05):
1426# For now, we'll just record the time in Stanley, since we have no
1427# better info.
1428
e01e21dd
SW
1429# From Steffen Thorsen (2011-04-01):
1430# The Falkland Islands will not turn back clocks this winter, but stay on
1431# daylight saving time.
1432#
1433# One source:
1434# <a href="http://www.falklandnews.com/public/story.cfm?get=5914&source=3">
1435# http://www.falklandnews.com/public/story.cfm?get=5914&source=3
1436# </a>
1437#
1438# We have gotten this confirmed by a clerk of the legislative assembly:
1439# Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the
1440# third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3
1441# hours) on the first Sunday of September at 0200hrs.
1442#
1443# IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands
1444# will not revert to local mean time, but clocks will remain on Summer
1445# time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term
1446# change to local time following the trial period will be notified.
bca44125
SW
1447#
1448# From Andrew Newman (2012-02-24)
1449# A letter from Justin McPhee, Chief Executive,
1450# Cable & Wireless Falkland Islands (dated 2012-02-22)
1451# states...
1452# The current Atlantic/Stanley entry under South America expects the
1453# clocks to go back to standard Falklands Time (FKT) on the 15th April.
1454# The database entry states that in 2011 Stanley was staying on fixed
1455# summer time on a trial basis only. FIG need to contact IANA and/or
1456# the maintainers of the database to inform them we're adopting
1457# the same policy this year and suggest recommendations for future years.
1458#
1459# For now we will assume permanent summer time for the Falklands
1460# until advised differently (to apply for 2012 and beyond, after the 2011
1461# experiment was apparently successful.)
984263bc
MD
1462# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1463Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S
1464Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 -
1465Rule Falk 1939 only - Oct 1 0:00 1:00 S
1466Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S
1467Rule Falk 1943 only - Jan 1 0:00 0 -
1468Rule Falk 1983 only - Sep lastSun 0:00 1:00 S
1469Rule Falk 1984 1985 - Apr lastSun 0:00 0 -
1470Rule Falk 1984 only - Sep 16 0:00 1:00 S
1471Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S
1472Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 -
e01e21dd 1473Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 -
bca44125 1474Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S
984263bc
MD
1475# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1476Zone Atlantic/Stanley -3:51:24 - LMT 1890
1477 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time
1478 -4:00 Falk FK%sT 1983 May # Falkland Is Time
1479 -3:00 Falk FK%sT 1985 Sep 15
bca44125
SW
1480 -4:00 Falk FK%sT 2010 Sep 5 02:00
1481 -3:00 - FKST
984263bc
MD
1482
1483# French Guiana
1484# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1485Zone America/Cayenne -3:29:20 - LMT 1911 Jul
1486 -4:00 - GFT 1967 Oct # French Guiana Time
1487 -3:00 - GFT
1488
1489# Guyana
1490# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1491Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown
1492 -3:45 - GBGT 1966 May 26 # Br Guiana Time
1493 -3:45 - GYT 1975 Jul 31 # Guyana Time
1494 -3:00 - GYT 1991
1495# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch.
1496 -4:00 - GYT
1497
1498# Paraguay
bd7414aa
SW
1499# From Paul Eggert (2006-03-22):
1500# Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00,
1501# and autumn transitions are from 00:00 -> 23:00. Go with pre-1999
984263bc
MD
1502# editions of Shanks, and with the IATA, who say transitions occur at 00:00.
1503# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1504Rule Para 1975 1988 - Oct 1 0:00 1:00 S
1505Rule Para 1975 1978 - Mar 1 0:00 0 -
1506Rule Para 1979 1991 - Apr 1 0:00 0 -
1507Rule Para 1989 only - Oct 22 0:00 1:00 S
1508Rule Para 1990 only - Oct 1 0:00 1:00 S
1509Rule Para 1991 only - Oct 6 0:00 1:00 S
1510Rule Para 1992 only - Mar 1 0:00 0 -
1511Rule Para 1992 only - Oct 5 0:00 1:00 S
1512Rule Para 1993 only - Mar 31 0:00 0 -
1513Rule Para 1993 1995 - Oct 1 0:00 1:00 S
1514Rule Para 1994 1995 - Feb lastSun 0:00 0 -
1515Rule Para 1996 only - Mar 1 0:00 0 -
1516# IATA SSIM (2000-02) says 1999-10-10; ignore this for now.
1517# From Steffen Thorsen (2000-10-02):
1518# I have three independent reports that Paraguay changed to DST this Sunday
1519# (10-01).
1520#
1521# Translated by Gwillim Law (2001-02-27) from
1522# <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm">
1523# Noticias, a daily paper in Asuncion, Paraguay (2000-10-01)
1524# </a>:
1525# Starting at 0:00 today, the clock will be set forward 60 minutes, in
1526# fulfillment of Decree No. 7,273 of the Executive Power.... The time change
1527# system has been operating for several years. Formerly there was a separate
1528# decree each year; the new law has the same effect, but permanently. Every
1529# year, the time will change on the first Sunday of October; likewise, the
1530# clock will be set back on the first Sunday of March.
1531#
984263bc 1532Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S
bd7414aa 1533# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger.
984263bc 1534Rule Para 1997 only - Feb lastSun 0:00 0 -
bd7414aa 1535# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but
984263bc
MD
1536# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27).
1537Rule Para 1998 2001 - Mar Sun>=1 0:00 0 -
1538# From Rives McDow (2002-02-28):
1539# A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the
1540# dst method to be from the first Sunday in September to the first Sunday in
1541# April.
bc95ec93
SW
1542Rule Para 2002 2004 - Apr Sun>=1 0:00 0 -
1543Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S
1544#
1545# From Jesper Norgaard Welen (2005-01-02):
1546# There are several sources that claim that Paraguay made
1547# a timezone rule change in autumn 2004.
1548# From Steffen Thorsen (2005-01-05):
ff8424c5
SW
1549# Decree 1,867 (2004-03-05)
1550# From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13)
1551# <http://www.presidencia.gov.py/decretos/D1867.pdf>
d9609dfd
SW
1552Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S
1553Rule Para 2005 2009 - Mar Sun>=8 0:00 0 -
1554# From Carlos Raul Perasso (2010-02-18):
1555# By decree number 3958 issued yesterday (
1556# <a href="http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf">
1557# http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf
1558# </a>
1559# )
1560# Paraguay changes its DST schedule, postponing the March rule to April and
1561# modifying the October date. The decree reads:
1562# ...
1563# Art. 1. It is hereby established that from the second Sunday of the month of
1564# April of this year (2010), the official time is to be set back 60 minutes,
1565# and that on the first Sunday of the month of October, it is to be set
1566# forward 60 minutes, in all the territory of the Paraguayan Republic.
1567# ...
5a0c5ddc 1568Rule Para 2010 max - Oct Sun>=1 0:00 1:00 S
d9609dfd 1569Rule Para 2010 max - Apr Sun>=8 0:00 0 -
e1ff7155
SW
1570#
1571# From Steffen Thorsen (2013-03-07):
1572# Paraguay will end DST on 2013-03-24 00:00....
1573# They do not tell if this will be a permanent change or just this year....
1574# http://www.ande.gov.py/interna.php?id=1075
1575#
1576# From Paul Eggert (2013-03-07):
1577# For now, assume it's just this year.
1578Rule Para 2013 only - Mar 24 0:00 0 -
984263bc
MD
1579
1580# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1581Zone America/Asuncion -3:50:40 - LMT 1890
1582 -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time
1583 -4:00 - PYT 1972 Oct # Paraguay Time
1584 -3:00 - PYT 1974 Apr
1585 -4:00 Para PY%sT
1586
1587# Peru
ba5ba9da
JR
1588#
1589# <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net">
1590# From Evelyn C. Leeper via Mark Brader (2003-10-26):</a>
bc95ec93 1591# When we were in Peru in 1985-1986, they apparently switched over
ba5ba9da
JR
1592# sometime between December 29 and January 3 while we were on the Amazon.
1593#
bd7414aa
SW
1594# From Paul Eggert (2006-03-22):
1595# Shanks & Pottenger don't have this transition. Assume 1986 was like 1987.
ba5ba9da 1596
984263bc
MD
1597# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
1598Rule Peru 1938 only - Jan 1 0:00 1:00 S
1599Rule Peru 1938 only - Apr 1 0:00 0 -
1600Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S
1601Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 -
ba5ba9da
JR
1602Rule Peru 1986 1987 - Jan 1 0:00 1:00 S
1603Rule Peru 1986 1987 - Apr 1 0:00 0 -
984263bc
MD
1604Rule Peru 1990 only - Jan 1 0:00 1:00 S
1605Rule Peru 1990 only - Apr 1 0:00 0 -
bd7414aa 1606# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.
984263bc
MD
1607Rule Peru 1994 only - Jan 1 0:00 1:00 S
1608Rule Peru 1994 only - Apr 1 0:00 0 -
1609# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1610Zone America/Lima -5:08:12 - LMT 1890
1611 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time?
1612 -5:00 Peru PE%sT # Peru Time
1613
1614# South Georgia
1615# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1616Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken
1617 -2:00 - GST # South Georgia Time
1618
1619# South Sandwich Is
1620# uninhabited; scientific personnel have wintered
1621
1622# Suriname
1623# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1624Zone America/Paramaribo -3:40:40 - LMT 1911
1625 -3:40:52 - PMT 1935 # Paramaribo Mean Time
1626 -3:40:36 - PMT 1945 Oct # The capital moved?
1627 -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time
1628 -3:30 - SRT 1984 Oct # Suriname Time
1629 -3:00 - SRT
1630
1631# Trinidad and Tobago
1632# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1633Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2
1634 -4:00 - AST
1635
1636# Uruguay
9ffe4b14 1637# From Paul Eggert (1993-11-18):
984263bc 1638# Uruguay wins the prize for the strangest peacetime manipulation of the rules.
bd7414aa 1639# From Shanks & Pottenger:
984263bc 1640# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
bd7414aa 1641# Whitman gives 1923 Oct 1; go with Shanks & Pottenger.
984263bc
MD
1642Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS
1643Rule Uruguay 1924 1926 - Apr 1 0:00 0 -
1644Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS
1645Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS
bd7414aa 1646# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman.
984263bc
MD
1647Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 -
1648Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS
1649Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 -
bd7414aa 1650# Whitman gives 1937 Oct 3; go with Shanks & Pottenger.
984263bc
MD
1651Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS
1652# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13,
bd7414aa
SW
1653# and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger.
1654Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS
1655Rule Uruguay 1942 only - Jan 1 0:00 0 -
984263bc
MD
1656Rule Uruguay 1942 only - Dec 14 0:00 1:00 S
1657Rule Uruguay 1943 only - Mar 14 0:00 0 -
1658Rule Uruguay 1959 only - May 24 0:00 1:00 S
1659Rule Uruguay 1959 only - Nov 15 0:00 0 -
1660Rule Uruguay 1960 only - Jan 17 0:00 1:00 S
1661Rule Uruguay 1960 only - Mar 6 0:00 0 -
1662Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S
1663Rule Uruguay 1965 only - Sep 26 0:00 0 -
1664Rule Uruguay 1966 1967 - Oct 31 0:00 0 -
1665Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS
1666Rule Uruguay 1968 1970 - Dec 2 0:00 0 -
1667Rule Uruguay 1972 only - Apr 24 0:00 1:00 S
1668Rule Uruguay 1972 only - Aug 15 0:00 0 -
1669Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS
1670Rule Uruguay 1974 only - Dec 22 0:00 1:00 S
1671Rule Uruguay 1976 only - Oct 1 0:00 0 -
1672Rule Uruguay 1977 only - Dec 4 0:00 1:00 S
1673Rule Uruguay 1978 only - Apr 1 0:00 0 -
1674Rule Uruguay 1979 only - Oct 1 0:00 1:00 S
1675Rule Uruguay 1980 only - May 1 0:00 0 -
1676Rule Uruguay 1987 only - Dec 14 0:00 1:00 S
1677Rule Uruguay 1988 only - Mar 14 0:00 0 -
1678Rule Uruguay 1988 only - Dec 11 0:00 1:00 S
1679Rule Uruguay 1989 only - Mar 12 0:00 0 -
1680Rule Uruguay 1989 only - Oct 29 0:00 1:00 S
bd7414aa 1681# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2,
984263bc
MD
1682# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA.
1683Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 -
1684Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S
1685Rule Uruguay 1992 only - Oct 18 0:00 1:00 S
1686Rule Uruguay 1993 only - Feb 28 0:00 0 -
bc95ec93
SW
1687# From Eduardo Cota (2004-09-20):
1688# The uruguayan government has decreed a change in the local time....
1689# http://www.presidencia.gub.uy/decretos/2004091502.htm
1690Rule Uruguay 2004 only - Sep 19 0:00 1:00 S
1691# From Steffen Thorsen (2005-03-11):
1692# Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to
1693# save energy ... it was postponed two weeks....
1694# http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm
1695Rule Uruguay 2005 only - Mar 27 2:00 0 -
e1e23b59
SW
1696# From Eduardo Cota (2005-09-27):
1697# http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF
1698# This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at
1699# 02:00 local time, official time in Uruguay will be at GMT -2.
1700Rule Uruguay 2005 only - Oct 9 2:00 1:00 S
1701Rule Uruguay 2006 only - Mar 12 2:00 0 -
bd7414aa
SW
1702# From Jesper Norgaard Welen (2006-09-06):
1703# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF
1704Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S
1705Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 -
984263bc
MD
1706# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1707Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
1708 -3:44:44 - MMT 1920 May 1 # Montevideo MT
1709 -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time
1710 -3:00 Uruguay UY%sT
1711
1712# Venezuela
bbe9957d 1713#
9d5f55b0
SW
1714# From John Stainforth (2007-11-28):
1715# ... the change for Venezuela originally expected for 2007-12-31 has
1716# been brought forward to 2007-12-09. The official announcement was
1717# published today in the "Gaceta Oficial de la Republica Bolivariana
1718# de Venezuela, numero 38.819" (official document for all laws or
1719# resolution publication)
1720# http://www.globovision.com/news.php?nid=72208
bbe9957d 1721
984263bc
MD
1722# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1723Zone America/Caracas -4:27:44 - LMT 1890
1724 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time?
1725 -4:30 - VET 1965 # Venezuela Time
9d5f55b0 1726 -4:00 - VET 2007 Dec 9 03:00
bbe9957d 1727 -4:30 - VET