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| # <pre># This file is in the public domain, so clarified as of# 2009-05-17 by Arthur David Olson.# This data is by no means authoritative; if you think you know better,# go ahead and edit the file (and please send any changes to# tz@iana.org for general use in the future).# From Paul Eggert (2006-03-22):# A good source for time zone historical data outside the U.S. is# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),# San Diego: ACS Publications, Inc. (2003).## Gwillim Law writes that a good source# for recent time zone data is the International Air Transport# Association's Standard Schedules Information Manual (IATA SSIM),# published semiannually.  Law sent in several helpful summaries# of the IATA's data after 1990.## Except where otherwise noted, Shanks & Pottenger is the source for# entries through 1990, and IATA SSIM is the source for entries afterwards.## Earlier editions of these tables used the North American style (e.g. ARST and# ARDT for Argentine Standard and Daylight Time), but the following quote# suggests that it's better to use European style (e.g. ART and ARST).#	I suggest the use of _Summer time_ instead of the more cumbersome#	_daylight-saving time_.  _Summer time_ seems to be in general use#	in Europe and South America.#	-- E O Cutler, _New York Times_ (1937-02-14), quoted in#	H L Mencken, _The American Language: Supplement I_ (1960), p 466## Earlier editions of these tables also used the North American style# for time zones in Brazil, but this was incorrect, as Brazilians say# "summer time".  Reinaldo Goulart, a Sao Paulo businessman active in# the railroad sector, writes (1999-07-06):#	The subject of time zones is currently a matter of discussion/debate in#	Brazil.  Let's say that "the Brasilia time" is considered the#	"official time" because Brasilia is the capital city.#	The other three time zones are called "Brasilia time "minus one" or#	"plus one" or "plus two".  As far as I know there is no such#	name/designation as "Eastern Time" or "Central Time".# So I invented the following (English-language) abbreviations for now.# Corrections are welcome!#		std	dst#	-2:00	FNT	FNST	Fernando de Noronha#	-3:00	BRT	BRST	Brasilia#	-4:00	AMT	AMST	Amazon#	-5:00	ACT	ACST	Acre############################################################################################################################################################### Argentina# From Bob Devine (1988-01-28):# Argentina: first Sunday in October to first Sunday in April since 1976.# Double Summer time from 1969 to 1974.  Switches at midnight.# From U. S. Naval Observatory (1988-01-199):# ARGENTINA           3 H BEHIND   UTC# From Hernan G. Otero (1995-06-26):# I am sending modifications to the Argentine time zone table...# AR was chosen because they are the ISO letters that represent Argentina.# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/SRule	Arg	1930	only	-	Dec	 1	0:00	1:00	SRule	Arg	1931	only	-	Apr	 1	0:00	0	-Rule	Arg	1931	only	-	Oct	15	0:00	1:00	SRule	Arg	1932	1940	-	Mar	 1	0:00	0	-Rule	Arg	1932	1939	-	Nov	 1	0:00	1:00	SRule	Arg	1940	only	-	Jul	 1	0:00	1:00	SRule	Arg	1941	only	-	Jun	15	0:00	0	-Rule	Arg	1941	only	-	Oct	15	0:00	1:00	SRule	Arg	1943	only	-	Aug	 1	0:00	0	-Rule	Arg	1943	only	-	Oct	15	0:00	1:00	SRule	Arg	1946	only	-	Mar	 1	0:00	0	-Rule	Arg	1946	only	-	Oct	 1	0:00	1:00	SRule	Arg	1963	only	-	Oct	 1	0:00	0	-Rule	Arg	1963	only	-	Dec	15	0:00	1:00	SRule	Arg	1964	1966	-	Mar	 1	0:00	0	-Rule	Arg	1964	1966	-	Oct	15	0:00	1:00	SRule	Arg	1967	only	-	Apr	 2	0:00	0	-Rule	Arg	1967	1968	-	Oct	Sun>=1	0:00	1:00	SRule	Arg	1968	1969	-	Apr	Sun>=1	0:00	0	-Rule	Arg	1974	only	-	Jan	23	0:00	1:00	SRule	Arg	1974	only	-	May	 1	0:00	0	-Rule	Arg	1988	only	-	Dec	 1	0:00	1:00	S## From Hernan G. Otero (1995-06-26):# These corrections were contributed by InterSoft Argentina S.A.,# obtaining the data from the:# Talleres de Hidrografia Naval Argentina# (Argentine Naval Hydrography Institute)Rule	Arg	1989	1993	-	Mar	Sun>=1	0:00	0	-Rule	Arg	1989	1992	-	Oct	Sun>=15	0:00	1:00	S## From Hernan G. Otero (1995-06-26):# From this moment on, the law that mandated the daylight saving# time corrections was derogated and no more modifications# to the time zones (for daylight saving) are now made.## From Rives McDow (2000-01-10):# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time,# which did not result in the switch of a time zone, as they stayed 9 hours# from the International Date Line.Rule	Arg	1999	only	-	Oct	Sun>=1	0:00	1:00	S# From Paul Eggert (2007-12-28):# DST was set to expire on March 5, not March 3, but since it was converted# to standard time on March 3 it's more convenient for us to pretend that# it ended on March 3.Rule	Arg	2000	only	-	Mar	3	0:00	0	-## From Peter Gradelski via Steffen Thorsen (2000-03-01):# We just checked with our Sao Paulo office and they say the government of# Argentina decided not to become one of the countries that go on or off DST.# So Buenos Aires should be -3 hours from GMT at all times.## From Fabian L. Arce Jofre (2000-04-04):# The law that claimed DST for Argentina was derogated by President Fernando# de la Rua on March 2, 2000, because it would make people spend more energy# in the winter time, rather than less.  The change took effect on March 3.## From Mariano Absatz (2001-06-06):# one of the major newspapers here in Argentina said that the 1999# Timezone Law (which never was effectively applied) will (would?) be# in effect.... The article is at# http://ar.clarin.com/diario/2001-06-06/e-01701.htm# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted# 1999-09-17, and published 1999-09-21.  The official publication is at:# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF# Regretfully, you have to subscribe (and pay) for the on-line version....## (2001-06-12):# the timezone for Argentina will not change next Sunday.# Apparently it will do so on Sunday 24th....# http://ar.clarin.com/diario/2001-06-12/s-03501.htm## (2001-06-25):# Last Friday (yes, the last working day before the date of the change), the# Senate annulled the 1999 law that introduced the changes later postponed.# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm# It remains the vote of the Deputies..., but it will be the same....# This kind of things had always been done this way in Argentina.# We are still -03:00 all year round in all of the country.## From Steffen Thorsen (2007-12-21):# A user (Leonardo Chaim) reported that Argentina will adopt DST....# all of the country (all Zone-entries) are affected.  News reports like# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate# that Argentina will use DST next year as well, from October to# March, although exact rules are not given.## From Jesper Norgaard Welen (2007-12-26)# The last hurdle of Argentina DST is over, the proposal was approved in# the lower chamber too (Deputados) with a vote 192 for and 2 against.# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to# the original scanned proposal, where the dates and the zero hours are# clear and unambiguous...This is the article about final approval:# <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996"># http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996# </a>## From Paul Eggert (2007-12-22):# For dates after mid-2008, the following rules are my guesses and# are quite possibly wrong, but are more likely than no DST at all.# From Alexander Krivenyshev (2008-09-05):# As per message from Carlos Alberto Fonseca Arauz (Nicaragua),# Argentina will start DST on Sunday October 19, 2008.## <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina03.html"># http://www.worldtimezone.com/dst_news/dst_news_argentina03.html# </a># OR# <a href="http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)"># http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)# </a># From Rodrigo Severo (2008-10-06):# Here is some info available at a Gentoo bug related to TZ on Argentina's DST:# ...# ------- Comment #1 from [jmdocile]  2008-10-06 16:28 0000 -------# Hi, there is a problem with timezone-data-2008e and maybe with# timezone-data-2008f# Argentinian law [Number] 25.155 is no longer valid.# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm"># http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm# </a># The new one is law [Number] 26.350# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm"># http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm# </a># So there is no summer time in Argentina for now.# From Mariano Absatz (2008-10-20):# Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina# From 2008-10-19 until 2009-03-15# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01"># http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01# </a>## Decree 1705/2008 excepting 12 Provinces from applying DST in the summer 2008/2009:# Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La Pampa, Neuquen, Rio Negro, Chubut, Santa Cruz# and Tierra del Fuego# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01"># http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01# </a>## Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying# it will not apply DST either (even when it was not included in Decree 1705/2008)# <a href="http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc"># http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc# </a># From fullinet (2009-10-18):# As announced in# <a hef="http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356"># http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356# </a># (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change")## "Por el momento, el Gobierno Nacional resolvio no modificar la hora# oficial, decision que estaba en estudio para su implementacion el# domingo 18 de octubre. Desde el Ministerio de Planificacion se anuncio# que la Argentina hoy, en estas condiciones meteorologicas, no necesita# la modificacion del huso horario, ya que 2009 nos encuentra con# crecimiento en la produccion y distribucion energetica."Rule	Arg	2007	only	-	Dec	30	0:00	1:00	SRule	Arg	2008	2009	-	Mar	Sun>=15	0:00	0	-Rule	Arg	2008	only	-	Oct	Sun>=15	0:00	1:00	S# From Mariano Absatz (2004-05-21):# Today it was officially published that the Province of Mendoza is changing# its timezone this winter... starting tomorrow night....# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf# From Paul Eggert (2004-05-24):# It's Law No. 7,210.  This change is due to a public power emergency, so for# now we'll assume it's for this year only.## From Paul Eggert (2006-03-22):# <a href="http://www.spicasc.net/horvera.html"># Hora de verano para la Republica Argentina (2003-06-08)# </a> says that standard time in Argentina from 1894-10-31# to 1920-05-01 was -4:16:48.25.  Go with this more-precise value# over Shanks & Pottenger.## From Mariano Absatz (2004-06-05):# These media articles from a major newspaper mostly cover the current state:# http://www.lanacion.com.ar/04/05/27/de_604825.asp# http://www.lanacion.com.ar/04/05/28/de_605203.asp## The following eight (8) provinces pulled clocks back to UTC-04:00 at# midnight Monday May 31st. (that is, the night between 05/31 and 06/01).# Apparently, all nine provinces would go back to UTC-03:00 at the same# time in October 17th.## Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz,# Tierra del Fuego, Tucuman.## From Mariano Absatz (2004-06-14):# ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's# annoyance with the change is much higher than the power savings obtained....## From Gwillim Law (2004-06-14):# http://www.lanacion.com.ar/04/06/10/de_609078.asp ...#     "The time change in Tierra del Fuego was a conflicted decision from#   the start.  The government had decreed that the measure would take#   effect on June 1, but a normative error forced the new time to begin#   three days earlier, from a Saturday to a Sunday....# Our understanding was that the change was originally scheduled to take place# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other# provinces).  Sunday was May 30, only two days earlier.  So the article# contains a contradiction.  I would give more credence to the Saturday/Sunday# date than the "three days earlier" phrase, and conclude that Tierra del# Fuego set its clocks back at 2004-05-30 00:00.## From Steffen Thorsen (2004-10-05):# The previous law 7210 which changed the province of Mendoza's time zone# back in May have been modified slightly in a new law 7277, which set the# new end date to 2004-09-26 (original date was 2004-10-17).# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf## From Mariano Absatz (2004-10-05):# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between# Sunday, May 30th and Monday, May 31st.  It changed back to UTC-03:00# at midnight between Saturday, July 24th and Sunday, July 25th....# http://www.sanjuan.gov.ar/prensa/archivo/000329.html# http://www.sanjuan.gov.ar/prensa/archivo/000426.html# http://www.sanjuan.gov.ar/prensa/archivo/000441.html# From Alex Krivenyshev (2008-01-17):# Here are articles that Argentina Province San Luis is planning to end DST# as earlier as upcoming Monday January 21, 2008 or February 2008:## Provincia argentina retrasa reloj y marca diferencia con resto del pais# (Argentine Province delayed clock and mark difference with the rest of the# country)# <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel"># http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel# </a>## Es inminente que en San Luis atrasen una hora los relojes# (It is imminent in San Luis clocks one hour delay)# <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414"># http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414# </a>## <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html"># http://www.worldtimezone.net/dst_news/dst_news_argentina02.html# </a># From Jesper Norgaard Welen (2008-01-18):# The page of the San Luis provincial government# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812"># http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812# </a># confirms what Alex Krivenyshev has earlier sent to the tz# emailing list about that San Luis plans to return to standard# time much earlier than the rest of the country. It also# confirms that upon request the provinces San Juan and Mendoza# refused to follow San Luis in this change.## The change is supposed to take place Monday the 21.st at 0:00# hours. As far as I understand it if this goes ahead, we need# a new timezone for San Luis (although there are also documented# independent changes in the southamerica file of San Luis in# 1990 and 1991 which has not been confirmed).# From Jesper Norgaard Welen (2008-01-25):# Unfortunately the below page has become defunct, about the San Luis# time change. Perhaps because it now is part of a group of pages "Most# important pages of 2008."## You can use# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834"># http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834# </a># instead it seems. Or use "Buscador" from the main page of the San Luis# government, and fill in "huso" and click OK, and you will get 3 pages# from which the first one is identical to the above.# From Mariano Absatz (2008-01-28):# I can confirm that the Province of San Luis (and so far only that# province) decided to go back to UTC-3 effective midnight Jan 20th 2008# (that is, Monday 21st at 0:00 is the time the clocks were delayed back# 1 hour), and they intend to keep UTC-3 as their timezone all year round# (that is, unless they change their mind any minute now).## So we'll have to add yet another city to 'southamerica' (I think San# Luis city is the mos populated city in the Province, so it'd be# America/Argentina/San_Luis... of course I can't remember if San Luis's# history of particular changes goes along with Mendoza or San Juan :-(# (I only remember not being able to collect hard facts about San Luis# back in 2004, when these provinces changed to UTC-4 for a few days, I# mailed them personally and never got an answer).# From Paul Eggert (2008-06-30):# Unless otherwise specified, data are from Shanks & Pottenger through 1992,# from the IATA otherwise.  As noted below, Shanks & Pottenger say that# America/Cordoba split into 6 subregions during 1991/1992, one of which# was America/San_Luis, but we haven't verified this yet so for now we'll# keep America/Cordoba a single region rather than splitting it into the# other 5 subregions.# From Mariano Absatz (2009-03-13):# Yesterday (with our usual 2-day notice) the Province of San Luis# decided that next Sunday instead of "staying" @utc-03:00 they will go# to utc-04:00 until the second Saturday in October...## The press release is at# <a href="http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102"># http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102# </a># (I couldn't find the decree, but# <a href="http://www.sanluis.gov.ar"># www.sanluis.gov.ar# <a/># is the official page for the Province Government).## There's also a note in only one of the major national papers (La Nación) at# <a href="http://www.lanacion.com.ar/nota.asp?nota_id=1107912"># http://www.lanacion.com.ar/nota.asp?nota_id=1107912# </a>## The press release says:#  (...) anunció que el próximo domingo a las 00:00 los puntanos deberán# atrasar una hora sus relojes.## A partir de entonces, San Luis establecerá el huso horario propio de# la Provincia. De esta manera, durante el periodo del calendario anual# 2009, el cambio horario quedará comprendido entre las 00:00 del tercer# domingo de marzo y las 24:00 del segundo sábado de octubre.# Quick&dirty translation# (...) announced that next Sunday, at 00:00, Puntanos (the San Luis# inhabitants) will have to turn back one hour their clocks## Since then, San Luis will establish its own Province timezone. Thus,# during 2009, this timezone change will run from 00:00 the third Sunday# in March until 24:00 of the second Saturday in October.# From Mariano Absatz (2009-10-16):# ...the Province of San Luis is a case in itself.## The Law at# <a href="http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276>"# http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276# </a># is ambiguous because establishes a calendar from the 2nd Sunday in# October at 0:00 thru the 2nd Saturday in March at 24:00 and the# complement of that starting on the 2nd Sunday of March at 0:00 and# ending on the 2nd Saturday of March at 24:00.## This clearly breaks every time the 1st of March or October is a Sunday.## IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd# Sunday of October and March.## The problem is that the changes in the rest of the Provinces that did# change in 2007/2008, were made according to the Federal Law and Decrees# that did so on the 3rd Sunday of October and March.## In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday# (October 11th) at 0:00.## So I guess a new set of rules, besides "Arg", must be made and the last# America/Argentina/San_Luis entries should change to use these...## I'm enclosing a patch that does what I say... regretfully, the San Luis# timezone must be called "WART/WARST" even when most of the time (like,# right now) WARST == ART... that is, since last Sunday, all the country# is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest# of the country calls it "ART".# ...# From Alexander Krivenyshev (2010-04-09):# According to news reports from El Diario de la Republica Province San# Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time# after April 11, 2010--will continue to have same time as rest of# Argentina (UTC-3) (no DST).## Confirmaron la prórroga del huso horario de verano (Spanish)# <a href="http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9"># http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9# </a># or (some English translation):# <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina08.html"># http://www.worldtimezone.com/dst_news/dst_news_argentina08.html# </a># From Mariano Absatz (2010-04-12):# yes...I can confirm this...and given that San Luis keeps calling# UTC-03:00 "summer time", we should't just let San Luis go back to "Arg"# rules...San Luis is still using "Western ARgentina Time" and it got# stuck on Summer daylight savings time even though the summer is over.# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]## Buenos Aires (BA), Capital Federal (CF),Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31			-4:16:48 -	CMT	1920 May # Cordoba Mean Time			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	Arg	AR%sT## Cordoba (CB), Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN),# Chaco (CC), Formosa (FM), Santiago del Estero (SE)## Shanks & Pottenger also make the following claims, which we haven't verified:# - Formosa switched to -3:00 on 1991-01-07.# - Misiones switched to -3:00 on 1990-12-29.# - Chaco switched to -3:00 on 1991-01-04.# - Santiago del Estero switched to -4:00 on 1991-04-01,#   then to -3:00 on 1991-04-26.#Zone America/Argentina/Cordoba -4:16:48 - LMT	1894 Oct 31			-4:16:48 -	CMT	1920 May			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1991 Mar  3			-4:00	-	WART	1991 Oct 20			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	Arg	AR%sT## Salta (SA), La Pampa (LP), Neuquen (NQ), Rio Negro (RN)Zone America/Argentina/Salta -4:21:40 - LMT	1894 Oct 31			-4:16:48 -	CMT	1920 May			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1991 Mar  3			-4:00	-	WART	1991 Oct 20			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	Arg	AR%sT	2008 Oct 18			-3:00	-	ART## Tucuman (TM)Zone America/Argentina/Tucuman -4:20:52 - LMT	1894 Oct 31			-4:16:48 -	CMT	1920 May			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1991 Mar  3			-4:00	-	WART	1991 Oct 20			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	-	ART	2004 Jun  1			-4:00	-	WART	2004 Jun 13			-3:00	Arg	AR%sT## La Rioja (LR)Zone America/Argentina/La_Rioja -4:27:24 - LMT	1894 Oct 31			-4:16:48 -	CMT	1920 May			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1991 Mar  1			-4:00	-	WART	1991 May  7			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	-	ART	2004 Jun  1			-4:00	-	WART	2004 Jun 20			-3:00	Arg	AR%sT	2008 Oct 18			-3:00	-	ART## San Juan (SJ)Zone America/Argentina/San_Juan -4:34:04 - LMT	1894 Oct 31			-4:16:48 -	CMT	1920 May			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1991 Mar  1			-4:00	-	WART	1991 May  7			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	-	ART	2004 May 31			-4:00	-	WART	2004 Jul 25			-3:00	Arg	AR%sT	2008 Oct 18			-3:00	-	ART## Jujuy (JY)Zone America/Argentina/Jujuy -4:21:12 -	LMT	1894 Oct 31			-4:16:48 -	CMT	1920 May			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1990 Mar  4			-4:00	-	WART	1990 Oct 28			-4:00	1:00	WARST	1991 Mar 17			-4:00	-	WART	1991 Oct  6			-3:00	1:00	ARST	1992			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	Arg	AR%sT	2008 Oct 18			-3:00	-	ART## Catamarca (CT), Chubut (CH)Zone America/Argentina/Catamarca -4:23:08 - LMT	1894 Oct 31			-4:16:48 -	CMT	1920 May			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1991 Mar  3			-4:00	-	WART	1991 Oct 20			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	-	ART	2004 Jun  1			-4:00	-	WART	2004 Jun 20			-3:00	Arg	AR%sT	2008 Oct 18			-3:00	-	ART## Mendoza (MZ)Zone America/Argentina/Mendoza -4:35:16 - LMT	1894 Oct 31			-4:16:48 -	CMT	1920 May			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1990 Mar  4			-4:00	-	WART	1990 Oct 15			-4:00	1:00	WARST	1991 Mar  1			-4:00	-	WART	1991 Oct 15			-4:00	1:00	WARST	1992 Mar  1			-4:00	-	WART	1992 Oct 18			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	-	ART	2004 May 23			-4:00	-	WART	2004 Sep 26			-3:00	Arg	AR%sT	2008 Oct 18			-3:00	-	ART## San Luis (SL)Rule	SanLuis	2008	2009	-	Mar	Sun>=8	0:00	0	-Rule	SanLuis	2007	2009	-	Oct	Sun>=8	0:00	1:00	SZone America/Argentina/San_Luis -4:25:24 - LMT	1894 Oct 31			-4:16:48 -	CMT	1920 May			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1990			-3:00	1:00	ARST	1990 Mar 14			-4:00	-	WART	1990 Oct 15			-4:00	1:00	WARST	1991 Mar  1			-4:00	-	WART	1991 Jun  1			-3:00	-	ART	1999 Oct  3			-4:00	1:00	WARST	2000 Mar  3			-3:00	-	ART	2004 May 31			-4:00	-	WART	2004 Jul 25			-3:00	Arg	AR%sT	2008 Jan 21			-4:00	SanLuis	WAR%sT## Santa Cruz (SC)Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31			-4:16:48 -	CMT	1920 May # Cordoba Mean Time			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	-	ART	2004 Jun  1			-4:00	-	WART	2004 Jun 20			-3:00	Arg	AR%sT	2008 Oct 18			-3:00	-	ART## Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31			-4:16:48 -	CMT	1920 May # Cordoba Mean Time			-4:00	-	ART	1930 Dec			-4:00	Arg	AR%sT	1969 Oct  5			-3:00	Arg	AR%sT	1999 Oct  3			-4:00	Arg	AR%sT	2000 Mar  3			-3:00	-	ART	2004 May 30			-4:00	-	WART	2004 Jun 20			-3:00	Arg	AR%sT	2008 Oct 18			-3:00	-	ART# Aruba# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone	America/Aruba	-4:40:24 -	LMT	1912 Feb 12	# Oranjestad			-4:30	-	ANT	1965 # Netherlands Antilles Time			-4:00	-	AST# Bolivia# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone	America/La_Paz	-4:32:36 -	LMT	1890			-4:32:36 -	CMT	1931 Oct 15 # Calamarca MT			-4:32:36 1:00	BOST	1932 Mar 21 # Bolivia ST			-4:00	-	BOT	# Bolivia Time# Brazil# From Paul Eggert (1993-11-18):# The mayor of Rio recently attempted to change the time zone rules# just in his city, in order to leave more summer time for the tourist trade.# The rule change lasted only part of the day;# the federal government refused to follow the city's rules, and business# was in a chaos, so the mayor backed down that afternoon.# From IATA SSIM (1996-02):# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS),# Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ),# Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO),# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL].# [The last three states are new to this issue of the IATA SSIM.]# From Gwillim Law (1996-10-07):# Geography, history (Tocantins was part of Goias until 1989), and other# sources of time zone information lead me to believe that AL, SE, and TO were# always in BR1, and so the only change was whether or not they observed DST....# The earliest issue of the SSIM I have is 2/91.  Each issue from then until# 9/95 says that DST is observed only in the ten states I quoted from 9/95,# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2# (UTC-4)....  The other two time zones given for Brazil are BR3, which is# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's# become part of the state of Pernambuco).  The boundary between BR1 and BR2# has never been clearly stated.  They've simply been called East and West.# However, some conclusions can be drawn from another IATA manual: the Airline# Coding Directory, which lists close to 400 airports in Brazil.  For each# airport it gives a time zone which is coded to the SSIM.  From that# information, I'm led to conclude that the states of Amapa (AP), Ceara (CE),# Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do# Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST.# From Marcos Tadeu (1998-09-27):# <a href="http://pcdsh01.on.br/verao1.html"># Brazilian official page# </a># From Jesper Norgaard (2000-11-03):# [For an official list of which regions in Brazil use which time zones, see:]# http://pcdsh01.on.br/Fusbr.htm# http://pcdsh01.on.br/Fusbrhv.htm# From Celso Doria via David Madeo (2002-10-09):# The reason for the delay this year has to do with elections in Brazil.## Unlike in the United States, elections in Brazil are 100% computerized and# the results are known almost immediately.  Yesterday, it was the first# round of the elections when 115 million Brazilians voted for President,# Governor, Senators, Federal Deputies, and State Deputies.  Nobody is# counting (or re-counting) votes anymore and we know there will be a second# round for the Presidency and also for some Governors.  The 2nd round will# take place on October 27th.## The reason why the DST will only begin November 3rd is that the thousands# of electoral machines used cannot have their time changed, and since the# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM,# the Government decided to postpone DST, instead of changing the Constitution# (maybe, for the next elections, it will be possible to change the clock)...# From Rodrigo Severo (2004-10-04):# It's just the biannual change made necessary by the much hyped, supposedly# modern Brazilian eletronic voting machines which, apparently, can't deal# with a time change between the first and the second rounds of the elections.# From Steffen Thorsen (2007-09-20):# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00:# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975# From Paul Schulze (2008-06-24):# ...by law number 11.662 of April 24, 2008 (published in the "Diario# Oficial da Uniao"...) in Brazil there are changes in the timezones,# effective today (00:00am at June 24, 2008) as follows:## a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the# part of the Amazonas state that had this timezone now being put to the# timezone UTC+4# b) The whole Para state now is put at timezone UTC+3, instead of just# part of it, as was before.## This change follows a proposal of senator Tiao Viana of Acre state, that# proposed it due to concerns about open television channels displaying# programs inappropriate to youths in the states that had the timezone# UTC+5 too early in the night. In the occasion, some more corrections# were proposed, trying to unify the timezones of any given state. This# change modifies timezone rules defined in decree 2.784 of 18 June,# 1913.# From Rodrigo Severo (2008-06-24):# Just correcting the URL:# <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008"># https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008# </a>## As a result of the above Decree I believe the America/Rio_Branco# timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall# be created to represent the...west side of the Para State. I# suggest this new timezone be called Santarem as the most# important/populated city in the affected area.## This new timezone would be the same as the Rio_Branco timezone up to# the 2008/06/24 change which would be to UTC-3 instead of UTC-4.# From Alex Krivenyshev (2008-06-24):# This is a quick reference page for New and Old Brazil Time Zones map.# <a href="http://www.worldtimezone.com/brazil-time-new-old.php"># http://www.worldtimezone.com/brazil-time-new-old.php# </a>## - 4 time zones replaced by 3 time zones-eliminating time zone UTC- 05# (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western# part of Par state is moving to one timezone UTC- 03 (from UTC -04).# From Paul Eggert (2002-10-10):# The official decrees referenced below are mostly taken from# <a href="http://pcdsh01.on.br/DecHV.html"># Decretos sobre o Horario de Verao no Brasil# </a>.# From Steffen Thorsen (2008-08-29):# As announced by the government and many newspapers in Brazil late# yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and# it will end on 2009-02-15 (current rule for Brazil is fine). Based on# past years experience with the elections, there was a good chance that# the start was postponed to November, but it did not happen this year.## It has not yet been posted to http://pcdsh01.on.br/DecHV.html## An official page about it:# <a href="http://www.mme.gov.br/site/news/detail.do?newsId=16722"># http://www.mme.gov.br/site/news/detail.do?newsId=16722# </a># Note that this link does not always work directly, but must be accessed# by going to# <a href="http://www.mme.gov.br/first"># http://www.mme.gov.br/first# </a>## One example link that works directly:# <a href="http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54"># http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54# (Portuguese)# </a>## We have a written a short article about it as well:# <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html"># http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html# </a>## From Alexander Krivenyshev (2011-10-04):# State Bahia will return to Daylight savings time this year after 8 years off.# The announcement was made by Governor Jaques Wagner in an interview to a# television station in Salvador.# In Portuguese:# <a href="http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html"># http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html# </a> and# <a href="http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html"># http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html# </a># From Guilherme Bernardes Rodrigues (2011-10-07):# There is news in the media, however there is still no decree about it.# I just send a e-mail to Zulmira Brandão at# <a href="http://pcdsh01.on.br/">http://pcdsh01.on.br/</a> the# oficial agency about time in Brazil, and she confirmed that the old rule is# still in force.# From Guilherme Bernardes Rodrigues (2011-10-14)# It's official, the President signed a decree that includes Bahia in summer# time.#	 [ and in a second message (same day): ]# I found the decree.## DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011# Link :# <a href="http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6"># http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6# </a># From Kelley Cook (2012-10-16):# The governor of state of Bahia in Brazil announced on Thursday that# due to public pressure, he is reversing the DST policy they implemented# last year and will not be going to Summer Time on October 21st....# http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia# From Rodrigo Severo (2012-10-16):# Tocantins state will have DST.# http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S# Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01)# Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10)Rule	Brazil	1931	only	-	Oct	 3	11:00	1:00	SRule	Brazil	1932	1933	-	Apr	 1	 0:00	0	-Rule	Brazil	1932	only	-	Oct	 3	 0:00	1:00	S# Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10)# revoked DST.# Decree <a href="http://pcdsh01.on.br/HV27496.htm">27,496</a> (1949-11-24)# Decree <a href="http://pcdsh01.on.br/HV27998.htm">27,998</a> (1950-04-13)Rule	Brazil	1949	1952	-	Dec	 1	 0:00	1:00	SRule	Brazil	1950	only	-	Apr	16	 1:00	0	-Rule	Brazil	1951	1952	-	Apr	 1	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24)Rule	Brazil	1953	only	-	Mar	 1	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30)# revoked DST.# Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18)# established DST from 1963-10-23 00:00 to 1964-02-29 00:00# in SP, RJ, GB, MG, ES, due to the prolongation of the drought.# Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03)# extended the above decree to all of the national territory on 12-09.Rule	Brazil	1963	only	-	Dec	 9	 0:00	1:00	S# Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25)# extended summer time by one day to 1964-03-01 00:00 (start of school).Rule	Brazil	1964	only	-	Mar	 1	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27)Rule	Brazil	1965	only	-	Jan	31	 0:00	1:00	SRule	Brazil	1965	only	-	Mar	31	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22)Rule	Brazil	1965	only	-	Dec	 1	 0:00	1:00	S# Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18)Rule	Brazil	1966	1968	-	Mar	 1	 0:00	0	-Rule	Brazil	1966	1967	-	Nov	 1	 0:00	1:00	S# Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15)# revoked DST.# Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27)Rule	Brazil	1985	only	-	Nov	 2	 0:00	1:00	S# Decree 92,310 (1986-01-21)# Decree 92,463 (1986-03-13)Rule	Brazil	1986	only	-	Mar	15	 0:00	0	-# Decree 93,316 (1986-10-01)Rule	Brazil	1986	only	-	Oct	25	 0:00	1:00	SRule	Brazil	1987	only	-	Feb	14	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22)Rule	Brazil	1987	only	-	Oct	25	 0:00	1:00	SRule	Brazil	1988	only	-	Feb	 7	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12)# except for the states of AC, AM, PA, RR, RO, and AP (then a territory)Rule	Brazil	1988	only	-	Oct	16	 0:00	1:00	SRule	Brazil	1989	only	-	Jan	29	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21)# with the same exceptionsRule	Brazil	1989	only	-	Oct	15	 0:00	1:00	SRule	Brazil	1990	only	-	Feb	11	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17)# adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF.# Decree 99,629 (1990-10-19) adds BA, MT.Rule	Brazil	1990	only	-	Oct	21	 0:00	1:00	SRule	Brazil	1991	only	-	Feb	17	 0:00	0	-# <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25)# adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF.Rule	Brazil	1991	only	-	Oct	20	 0:00	1:00	SRule	Brazil	1992	only	-	Feb	 9	 0:00	0	-# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16)# adopted by same states.Rule	Brazil	1992	only	-	Oct	25	 0:00	1:00	SRule	Brazil	1993	only	-	Jan	31	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)# adopted by same states, plus AM.# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22;# web page corrected 2004-01-07) adopted by same states, minus AM.# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)# adopted by same states, plus MT and TO.# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)# adds AL, SE.Rule	Brazil	1993	1995	-	Oct	Sun>=11	 0:00	1:00	SRule	Brazil	1994	1995	-	Feb	Sun>=15	 0:00	0	-Rule	Brazil	1996	only	-	Feb	11	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04)# adopted by same states, minus AL, SE.Rule	Brazil	1996	only	-	Oct	 6	 0:00	1:00	SRule	Brazil	1997	only	-	Feb	16	 0:00	0	-# From Daniel C. Sobral (1998-02-12):# In 1997, the DS began on October 6. The stated reason was that# because international television networks ignored Brazil's policy on DS,# they bought the wrong times on satellite for coverage of Pope's visit.# This year, the ending date of DS was postponed to March 1# to help dealing with the shortages of electric power.## Decree 2,317 (1997-09-04), adopted by same states.Rule	Brazil	1997	only	-	Oct	 6	 0:00	1:00	S# Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a># (1998-02-10)Rule	Brazil	1998	only	-	Mar	 1	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11)# adopted by the same states as before.Rule	Brazil	1998	only	-	Oct	11	 0:00	1:00	SRule	Brazil	1999	only	-	Feb	21	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a># (1999-08-23) adopted by same states.# Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30)# adds SE, AL, PB, PE, RN, CE, PI, MA and RR.Rule	Brazil	1999	only	-	Oct	 3	 0:00	1:00	SRule	Brazil	2000	only	-	Feb	27	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06)# adopted by the same states as before.# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13)# repeals DST in PE and RR, effective 2000-10-15 00:00.# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17)# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00.# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a># (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.Rule	Brazil	2000	2001	-	Oct	Sun>=8	 0:00	1:00	SRule	Brazil	2001	2006	-	Feb	Sun>=15	 0:00	0	-# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a>Rule	Brazil	2002	only	-	Nov	 3	 0:00	1:00	S# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO.# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a>Rule	Brazil	2003	only	-	Oct	19	 0:00	1:00	S# Decree 5,223 (2004-10-01) reestablishes DST in MT.# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a>Rule	Brazil	2004	only	-	Nov	 2	 0:00	1:00	S# Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19),# adopted by the same states as before.Rule	Brazil	2005	only	-	Oct	16	 0:00	1:00	S# Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03),# adopted by the same states as before.Rule	Brazil	2006	only	-	Nov	 5	 0:00	1:00	SRule	Brazil	2007	only	-	Feb	25	 0:00	0	-# Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26),# adopted by the same states as before.Rule	Brazil	2007	only	-	Oct	Sun>=8	 0:00	1:00	S# From Frederico A. C. Neves (2008-09-10):# Acording to this decree# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm"># http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm# </a># [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the# 3rd Feb Sunday. There is an exception on the return date when this is# the Carnival Sunday then the return date will be the next Sunday...Rule	Brazil	2008	max	-	Oct	Sun>=15	0:00	1:00	SRule	Brazil	2008	2011	-	Feb	Sun>=15	0:00	0	-Rule	Brazil	2012	only	-	Feb	Sun>=22	0:00	0	-Rule	Brazil	2013	2014	-	Feb	Sun>=15	0:00	0	-Rule	Brazil	2015	only	-	Feb	Sun>=22	0:00	0	-Rule	Brazil	2016	2022	-	Feb	Sun>=15	0:00	0	-Rule	Brazil	2023	only	-	Feb	Sun>=22	0:00	0	-Rule	Brazil	2024	2025	-	Feb	Sun>=15	0:00	0	-Rule	Brazil	2026	only	-	Feb	Sun>=22	0:00	0	-Rule	Brazil	2027	2033	-	Feb	Sun>=15	0:00	0	-Rule	Brazil	2034	only	-	Feb	Sun>=22	0:00	0	-Rule	Brazil	2035	2036	-	Feb	Sun>=15	0:00	0	-Rule	Brazil	2037	only	-	Feb	Sun>=22	0:00	0	-# From Arthur David Olson (2008-09-29):# The next is wrong in some years but is better than nothing.Rule	Brazil	2038	max	-	Feb	Sun>=15	0:00	0	-# The latest ruleset listed above says that the following states observe DST:# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]## Fernando de Noronha (administratively part of PE)Zone America/Noronha	-2:09:40 -	LMT	1914			-2:00	Brazil	FN%sT	1990 Sep 17			-2:00	-	FNT	1999 Sep 30			-2:00	Brazil	FN%sT	2000 Oct 15			-2:00	-	FNT	2001 Sep 13			-2:00	Brazil	FN%sT	2002 Oct  1			-2:00	-	FNT# Other Atlantic islands have no permanent settlement.# These include Trindade and Martin Vaz (administratively part of ES),# Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE).# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01;# it also included the Penedos.## Amapa (AP), east Para (PA)# East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu.# The division between east and west Para is the river Xingu.# In the north a very small part from the river Javary (now Jari I guess,# the border with Amapa) to the Amazon, then to the Xingu.Zone America/Belem	-3:13:56 -	LMT	1914			-3:00	Brazil	BR%sT	1988 Sep 12			-3:00	-	BRT## west Para (PA)# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.Zone America/Santarem	-3:38:48 -	LMT	1914			-4:00	Brazil	AM%sT	1988 Sep 12			-4:00	-	AMT	2008 Jun 24 00:00			-3:00	-	BRT## Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN),# Paraiba (PB)Zone America/Fortaleza	-2:34:00 -	LMT	1914			-3:00	Brazil	BR%sT	1990 Sep 17			-3:00	-	BRT	1999 Sep 30			-3:00	Brazil	BR%sT	2000 Oct 22			-3:00	-	BRT	2001 Sep 13			-3:00	Brazil	BR%sT	2002 Oct  1			-3:00	-	BRT## Pernambuco (PE) (except Atlantic islands)Zone America/Recife	-2:19:36 -	LMT	1914			-3:00	Brazil	BR%sT	1990 Sep 17			-3:00	-	BRT	1999 Sep 30			-3:00	Brazil	BR%sT	2000 Oct 15			-3:00	-	BRT	2001 Sep 13			-3:00	Brazil	BR%sT	2002 Oct  1			-3:00	-	BRT## Tocantins (TO)Zone America/Araguaina	-3:12:48 -	LMT	1914			-3:00	Brazil	BR%sT	1990 Sep 17			-3:00	-	BRT	1995 Sep 14			-3:00	Brazil	BR%sT	2003 Sep 24			-3:00	-	BRT	2012 Oct 21			-3:00	Brazil	BR%sT## Alagoas (AL), Sergipe (SE)Zone America/Maceio	-2:22:52 -	LMT	1914			-3:00	Brazil	BR%sT	1990 Sep 17			-3:00	-	BRT	1995 Oct 13			-3:00	Brazil	BR%sT	1996 Sep  4			-3:00	-	BRT	1999 Sep 30			-3:00	Brazil	BR%sT	2000 Oct 22			-3:00	-	BRT	2001 Sep 13			-3:00	Brazil	BR%sT	2002 Oct  1			-3:00	-	BRT## Bahia (BA)# There are too many Salvadors elsewhere, so use America/Bahia instead# of America/Salvador.Zone America/Bahia	-2:34:04 -	LMT	1914			-3:00	Brazil	BR%sT	2003 Sep 24			-3:00	-	BRT	2011 Oct 16			-3:00	Brazil	BR%sT	2012 Oct 21			-3:00	-	BRT## Goias (GO), Distrito Federal (DF), Minas Gerais (MG),# Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR),# Santa Catarina (SC), Rio Grande do Sul (RS)Zone America/Sao_Paulo	-3:06:28 -	LMT	1914			-3:00	Brazil	BR%sT	1963 Oct 23 00:00			-3:00	1:00	BRST	1964			-3:00	Brazil	BR%sT## Mato Grosso do Sul (MS)Zone America/Campo_Grande -3:38:28 -	LMT	1914			-4:00	Brazil	AM%sT## Mato Grosso (MT)Zone America/Cuiaba	-3:44:20 -	LMT	1914			-4:00	Brazil	AM%sT	2003 Sep 24			-4:00	-	AMT	2004 Oct  1			-4:00	Brazil	AM%sT## Rondonia (RO)Zone America/Porto_Velho -4:15:36 -	LMT	1914			-4:00	Brazil	AM%sT	1988 Sep 12			-4:00	-	AMT## Roraima (RR)Zone America/Boa_Vista	-4:02:40 -	LMT	1914			-4:00	Brazil	AM%sT	1988 Sep 12			-4:00	-	AMT	1999 Sep 30			-4:00	Brazil	AM%sT	2000 Oct 15			-4:00	-	AMT## east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto# The great circle line from Tabatinga to Porto Acre divides# east from west Amazonas.Zone America/Manaus	-4:00:04 -	LMT	1914			-4:00	Brazil	AM%sT	1988 Sep 12			-4:00	-	AMT	1993 Sep 28			-4:00	Brazil	AM%sT	1994 Sep 22			-4:00	-	AMT## west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant,#	Eirunepe, Envira, IpixunaZone America/Eirunepe	-4:39:28 -	LMT	1914			-5:00	Brazil	AC%sT	1988 Sep 12			-5:00	-	ACT	1993 Sep 28			-5:00	Brazil	AC%sT	1994 Sep 22			-5:00	-	ACT	2008 Jun 24 00:00			-4:00	-	AMT## Acre (AC)Zone America/Rio_Branco	-4:31:12 -	LMT	1914			-5:00	Brazil	AC%sT	1988 Sep 12			-5:00	-	ACT	2008 Jun 24 00:00			-4:00	-	AMT# Chile# From Eduardo Krell (1995-10-19):# The law says to switch to DST at midnight [24:00] on the second SATURDAY# of October....  The law is the same for March and October.# (1998-09-29):# Because of the drought this year, the government decided to go into# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ...# (unless there's another dry season next year, I guess).# From Julio I. Pacheco Troncoso (1999-03-18):# Because of the same drought, the government decided to end DST later,# on April 3, (one-time change).# From Oscar van Vlijmen (2006-10-08):# http://www.horaoficial.cl/cambio.htm# From Jesper Norgaard Welen (2006-10-08):# I think that there are some obvious mistakes in the suggested link# from Oscar van Vlijmen,... for instance entry 66 says that GMT-4# ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15# (they should have been 1990-09-15 and 1990-09-16 respectively), but# anyhow it clears up some doubts too.# From Paul Eggert (2006-12-27):# The following data for Chile and America/Santiago are from# <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by# Jesper Norgaard Welen.  The data for Pacific/Easter are from Shanks# & Pottenger, except with DST transitions after 1932 cloned from# America/Santiago.  The pre-1980 Pacific/Easter data are dubious,# but we have no other source.# From German Poo-Caaman~o (2008-03-03):# Due to drought, Chile extends Daylight Time in three weeks.  This# is one-time change (Saturday 3/29 at 24:00 for America/Santiago# and Saturday 3/29 at 22:00 for Pacific/Easter)# The Supreme Decree is located at# <a href="http://www.shoa.cl/servicios/supremo316.pdf"># http://www.shoa.cl/servicios/supremo316.pdf# </a># and the instructions for 2008 are located in:# <a href="http://www.horaoficial.cl/cambio.htm"># http://www.horaoficial.cl/cambio.htm# </a>.# From Jose Miguel Garrido (2008-03-05):# ...# You could see the announces of the change on# <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm"># http://www.shoa.cl/noticias/2008/04hora/hora.htm# </a>.# From Angel Chiang (2010-03-04):# Subject: DST in Chile exceptionally extended to 3 April due to earthquake# <a href="http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098"># http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098# </a># (in Spanish, last paragraph).## This is breaking news. There should be more information available later.# From Arthur Daivd Olson (2010-03-06):# Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch.# From Glenn Eychaner (2011-03-02): [geychaner@mac.com]# It appears that the Chilean government has decided to postpone the# change from summer time to winter time again, by three weeks to April# 2nd:# <a href="http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651"># http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651# </a>## This is not yet reflected in the offical "cambio de hora" site, but# probably will be soon:# <a href="http://www.horaoficial.cl/cambio.htm"># http://www.horaoficial.cl/cambio.htm# </a># From Arthur David Olson (2011-03-02):# The emol.com article mentions a water shortage as the cause of the# postponement, which may mean that it's not a permanent change.# From Glenn Eychaner (2011-03-28):# The article:# <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}"># http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E}# </a>## In English:# Chile's clocks will go back an hour this year on the 7th of May instead# of this Saturday. They will go forward again the 3rd Saturday in# August, not in October as they have since 1968. This is a pilot plan# which will be reevaluated in 2012.# From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23):# As stated in the website of the Chilean Energy Ministry# http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html# The Chilean Government has decided to postpone the entrance into winter time# (to leave DST) from March 11 2012 to April 28th 2012. The decision has not# been yet formalized but it will within the next days.# Quote from the website communication:## 6. For the year 2012, the dates of entry into winter time will be as follows:# a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at# 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00# of the same day.# b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is,# at 23:59:59, instead of passing to 0:00, the time should be adjusted to be# 01:00 on September 2.## Note that...this is yet another "temporary" change that will be reevaluated# AGAIN in 2013.# NOTE: ChileAQ rules for Antarctic bases are stored separately in the# 'antarctica' file.# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/SRule	Chile	1927	1932	-	Sep	 1	0:00	1:00	SRule	Chile	1928	1932	-	Apr	 1	0:00	0	-Rule	Chile	1942	only	-	Jun	 1	4:00u	0	-Rule	Chile	1942	only	-	Aug	 1	5:00u	1:00	SRule	Chile	1946	only	-	Jul	15	4:00u	1:00	SRule	Chile	1946	only	-	Sep	 1	3:00u	0:00	-Rule	Chile	1947	only	-	Apr	 1	4:00u	0	-Rule	Chile	1968	only	-	Nov	 3	4:00u	1:00	SRule	Chile	1969	only	-	Mar	30	3:00u	0	-Rule	Chile	1969	only	-	Nov	23	4:00u	1:00	SRule	Chile	1970	only	-	Mar	29	3:00u	0	-Rule	Chile	1971	only	-	Mar	14	3:00u	0	-Rule	Chile	1970	1972	-	Oct	Sun>=9	4:00u	1:00	SRule	Chile	1972	1986	-	Mar	Sun>=9	3:00u	0	-Rule	Chile	1973	only	-	Sep	30	4:00u	1:00	SRule	Chile	1974	1987	-	Oct	Sun>=9	4:00u	1:00	SRule	Chile	1987	only	-	Apr	12	3:00u	0	-Rule	Chile	1988	1989	-	Mar	Sun>=9	3:00u	0	-Rule	Chile	1988	only	-	Oct	Sun>=1	4:00u	1:00	SRule	Chile	1989	only	-	Oct	Sun>=9	4:00u	1:00	SRule	Chile	1990	only	-	Mar	18	3:00u	0	-Rule	Chile	1990	only	-	Sep	16	4:00u	1:00	SRule	Chile	1991	1996	-	Mar	Sun>=9	3:00u	0	-Rule	Chile	1991	1997	-	Oct	Sun>=9	4:00u	1:00	SRule	Chile	1997	only	-	Mar	30	3:00u	0	-Rule	Chile	1998	only	-	Mar	Sun>=9	3:00u	0	-Rule	Chile	1998	only	-	Sep	27	4:00u	1:00	SRule	Chile	1999	only	-	Apr	 4	3:00u	0	-Rule	Chile	1999	2010	-	Oct	Sun>=9	4:00u	1:00	SRule	Chile	2000	2007	-	Mar	Sun>=9	3:00u	0	-# N.B.: the end of March 29 in Chile is March 30 in Universal time,# which is used below in specifying the transition.Rule	Chile	2008	only	-	Mar	30	3:00u	0	-Rule	Chile	2009	only	-	Mar	Sun>=9	3:00u	0	-Rule	Chile	2010	only	-	Apr	Sun>=1	3:00u	0	-Rule	Chile	2011	only	-	May	Sun>=2	3:00u	0	-Rule	Chile	2011	only	-	Aug	Sun>=16	4:00u	1:00	SRule	Chile	2012	only	-	Apr	Sun>=23	3:00u	0	-Rule	Chile	2012	only	-	Sep	Sun>=2	4:00u	1:00	SRule	Chile	2013	max	-	Mar	Sun>=9	3:00u	0	-Rule	Chile	2013	max	-	Oct	Sun>=9	4:00u	1:00	S# IATA SSIM anomalies: (1992-02) says 1992-03-14;# (1996-09) says 1998-03-08.  Ignore these.# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone America/Santiago	-4:42:46 -	LMT	1890			-4:42:46 -	SMT	1910 	    # Santiago Mean Time			-5:00	-	CLT	1916 Jul  1 # Chile Time			-4:42:46 -	SMT	1918 Sep  1 # Santiago Mean Time			-4:00	-	CLT	1919 Jul  1 # Chile Time			-4:42:46 -	SMT	1927 Sep  1 # Santiago Mean Time			-5:00	Chile	CL%sT	1947 May 22 # Chile Time			-4:00	Chile	CL%sTZone Pacific/Easter	-7:17:44 -	LMT	1890			-7:17:28 -	EMT	1932 Sep    # Easter Mean Time			-7:00	Chile	EAS%sT	1982 Mar 13 21:00 # Easter I Time			-6:00	Chile	EAS%sT## Sala y Gomez Island is like Pacific/Easter.# Other Chilean locations, including Juan Fernandez Is, San Ambrosio,# San Felix, and Antarctic bases, are like America/Santiago.# Colombia# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/SRule	CO	1992	only	-	May	 3	0:00	1:00	SRule	CO	1993	only	-	Apr	 4	0:00	0	-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone	America/Bogota	-4:56:20 -	LMT	1884 Mar 13			-4:56:20 -	BMT	1914 Nov 23 # Bogota Mean Time			-5:00	CO	CO%sT	# Colombia Time# Malpelo, Providencia, San Andres# no information; probably like America/Bogota# Curacao## From Paul Eggert (2006-03-22):# Shanks & Pottenger say that The Bottom and Philipsburg have been at# -4:00 since standard time was introduced on 1912-03-02; and that# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from# 1912-02-02 to 1965-01-01.  The former is dubious, since S&P also say# Saba Island has been like Curacao.# This all predates our 1970 cutoff, though.## By July 2007 Curacao and St Maarten are planned to become# associated states within the Netherlands, much like Aruba;# Bonaire, Saba and St Eustatius would become directly part of the# Netherlands as Kingdom Islands.  This won't affect their time zones# though, as far as we know.## Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone	America/Curacao	-4:35:44 -	LMT	1912 Feb 12	# Willemstad			-4:30	-	ANT	1965 # Netherlands Antilles Time			-4:00	-	AST# From Arthur David Olson (2011-06-15):# At least for now, use links for places with new iso3166 codes.# The name "Lower Prince's Quarter" is both longer than fourteen charaters# and contains an apostrophe; use "Lower_Princes" below.Link	America/Curacao	America/Lower_Princes # Sint MaartenLink	America/Curacao	America/Kralendijk # Bonaire, Sint Estatius and Saba# Ecuador## From Paul Eggert (2007-03-04):# Apparently Ecuador had a failed experiment with DST in 1992.# <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and# <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both# talk about "hora Sixto".  Leave this alone for now, as we have no data.## Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone America/Guayaquil	-5:19:20 -	LMT	1890			-5:14:00 -	QMT	1931 # Quito Mean Time			-5:00	-	ECT	     # Ecuador TimeZone Pacific/Galapagos	-5:58:24 -	LMT	1931 # Puerto Baquerizo Moreno			-5:00	-	ECT	1986			-6:00	-	GALT	     # Galapagos Time# Falklands# From Paul Eggert (2006-03-22):# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except# the IATA gives 1996-09-08.  Go with Shanks & Pottenger.# From Falkland Islands Government Office, London (2001-01-22)# via Jesper Norgaard:# ... the clocks revert back to Local Mean Time at 2 am on Sunday 15# April 2001 and advance one hour to summer time at 2 am on Sunday 2# September.  It is anticipated that the clocks will revert back at 2# am on Sunday 21 April 2002 and advance to summer time at 2 am on# Sunday 1 September.# From Rives McDow (2001-02-13):## I have communicated several times with people there, and the last# time I had communications that was helpful was in 1998.  Here is# what was said then:## "The general rule was that Stanley used daylight saving and the Camp# did not. However for various reasons many people in the Camp have# started to use daylight saving (known locally as 'Stanley Time')# There is no rule as to who uses daylight saving - it is a matter of# personal choice and so it is impossible to draw a map showing who# uses it and who does not. Any list would be out of date as soon as# it was produced. This year daylight saving ended on April 18/19th# and started again on September 12/13th.  I do not know what the rule# is, but can find out if you like.  We do not change at the same time# as UK or Chile."## I did have in my notes that the rule was "Second Saturday in Sep at# 0:00 until third Saturday in Apr at 0:00".  I think that this does# not agree in some cases with Shanks; is this true?## Also, there is no mention in the list that some areas in the# Falklands do not use DST.  I have found in my communications there# that these areas are on the western half of East Falkland and all of# West Falkland.  Stanley is the only place that consistently observes# DST.  Again, as in other places in the world, the farmers don't like# it.  West Falkland is almost entirely sheep farmers.## I know one lady there that keeps a list of which farm keeps DST and# which doesn't each year.  She runs a shop in Stanley, and says that# the list changes each year.  She uses it to communicate to her# customers, catching them when they are home for lunch or dinner.# From Paul Eggert (2001-03-05):# For now, we'll just record the time in Stanley, since we have no# better info.# From Steffen Thorsen (2011-04-01):# The Falkland Islands will not turn back clocks this winter, but stay on# daylight saving time.## One source:# <a href="http://www.falklandnews.com/public/story.cfm?get=5914&source=3"># http://www.falklandnews.com/public/story.cfm?get=5914&source=3# </a>## We have gotten this confirmed by a clerk of the legislative assembly:# Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the# third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3# hours) on the first Sunday of September at 0200hrs.## IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands# will not revert to local mean time, but clocks will remain on Summer# time (UTC/GMT - 3 hours) throughout the whole of 2011.  Any long term# change to local time following the trial period will be notified.## From Andrew Newman (2012-02-24)# A letter from Justin McPhee, Chief Executive,# Cable & Wireless Falkland Islands (dated 2012-02-22)# states...#   The current Atlantic/Stanley entry under South America expects the#   clocks to go back to standard Falklands Time (FKT) on the 15th April.#   The database entry states that in 2011 Stanley was staying on fixed#   summer time on a trial basis only.  FIG need to contact IANA and/or#   the maintainers of the database to inform them we're adopting#   the same policy this year and suggest recommendations for future years.## For now we will assume permanent summer time for the Falklands# until advised differently (to apply for 2012 and beyond, after the 2011# experiment was apparently successful.)# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/SRule	Falk	1937	1938	-	Sep	lastSun	0:00	1:00	SRule	Falk	1938	1942	-	Mar	Sun>=19	0:00	0	-Rule	Falk	1939	only	-	Oct	1	0:00	1:00	SRule	Falk	1940	1942	-	Sep	lastSun	0:00	1:00	SRule	Falk	1943	only	-	Jan	1	0:00	0	-Rule	Falk	1983	only	-	Sep	lastSun	0:00	1:00	SRule	Falk	1984	1985	-	Apr	lastSun	0:00	0	-Rule	Falk	1984	only	-	Sep	16	0:00	1:00	SRule	Falk	1985	2000	-	Sep	Sun>=9	0:00	1:00	SRule	Falk	1986	2000	-	Apr	Sun>=16	0:00	0	-Rule	Falk	2001	2010	-	Apr	Sun>=15	2:00	0	-Rule	Falk	2001	2010	-	Sep	Sun>=1	2:00	1:00	S# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone Atlantic/Stanley	-3:51:24 -	LMT	1890			-3:51:24 -	SMT	1912 Mar 12  # Stanley Mean Time			-4:00	Falk	FK%sT	1983 May     # Falkland Is Time			-3:00	Falk	FK%sT	1985 Sep 15			-4:00	Falk	FK%sT	2010 Sep 5 02:00			-3:00	-	FKST# French Guiana# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone America/Cayenne	-3:29:20 -	LMT	1911 Jul			-4:00	-	GFT	1967 Oct # French Guiana Time			-3:00	-	GFT# Guyana# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone	America/Guyana	-3:52:40 -	LMT	1915 Mar	# Georgetown			-3:45	-	GBGT	1966 May 26 # Br Guiana Time			-3:45	-	GYT	1975 Jul 31 # Guyana Time			-3:00	-	GYT	1991# IATA SSIM (1996-06) says -4:00.  Assume a 1991 switch.			-4:00	-	GYT# Paraguay# From Paul Eggert (2006-03-22):# Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00,# and autumn transitions are from 00:00 -> 23:00.  Go with pre-1999# editions of Shanks, and with the IATA, who say transitions occur at 00:00.# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/SRule	Para	1975	1988	-	Oct	 1	0:00	1:00	SRule	Para	1975	1978	-	Mar	 1	0:00	0	-Rule	Para	1979	1991	-	Apr	 1	0:00	0	-Rule	Para	1989	only	-	Oct	22	0:00	1:00	SRule	Para	1990	only	-	Oct	 1	0:00	1:00	SRule	Para	1991	only	-	Oct	 6	0:00	1:00	SRule	Para	1992	only	-	Mar	 1	0:00	0	-Rule	Para	1992	only	-	Oct	 5	0:00	1:00	SRule	Para	1993	only	-	Mar	31	0:00	0	-Rule	Para	1993	1995	-	Oct	 1	0:00	1:00	SRule	Para	1994	1995	-	Feb	lastSun	0:00	0	-Rule	Para	1996	only	-	Mar	 1	0:00	0	-# IATA SSIM (2000-02) says 1999-10-10; ignore this for now.# From Steffen Thorsen (2000-10-02):# I have three independent reports that Paraguay changed to DST this Sunday# (10-01).## Translated by Gwillim Law (2001-02-27) from# <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm"># Noticias, a daily paper in Asuncion, Paraguay (2000-10-01)# </a>:# Starting at 0:00 today, the clock will be set forward 60 minutes, in# fulfillment of Decree No. 7,273 of the Executive Power....  The time change# system has been operating for several years.  Formerly there was a separate# decree each year; the new law has the same effect, but permanently.  Every# year, the time will change on the first Sunday of October; likewise, the# clock will be set back on the first Sunday of March.#Rule	Para	1996	2001	-	Oct	Sun>=1	0:00	1:00	S# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger.Rule	Para	1997	only	-	Feb	lastSun	0:00	0	-# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27).Rule	Para	1998	2001	-	Mar	Sun>=1	0:00	0	-# From Rives McDow (2002-02-28):# A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the# dst method to be from the first Sunday in September to the first Sunday in# April.Rule	Para	2002	2004	-	Apr	Sun>=1	0:00	0	-Rule	Para	2002	2003	-	Sep	Sun>=1	0:00	1:00	S## From Jesper Norgaard Welen (2005-01-02):# There are several sources that claim that Paraguay made# a timezone rule change in autumn 2004.# From Steffen Thorsen (2005-01-05):# Decree 1,867 (2004-03-05)# From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13)# <http://www.presidencia.gov.py/decretos/D1867.pdf>Rule	Para	2004	2009	-	Oct	Sun>=15	0:00	1:00	SRule	Para	2005	2009	-	Mar	Sun>=8	0:00	0	-# From Carlos Raul Perasso (2010-02-18):# By decree number 3958 issued yesterday (# <a href="http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf"># http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf# </a># )# Paraguay changes its DST schedule, postponing the March rule to April and# modifying the October date. The decree reads:# ...# Art. 1. It is hereby established that from the second Sunday of the month of# April of this year (2010), the official time is to be set back 60 minutes,# and that on the first Sunday of the month of October, it is to be set# forward 60 minutes, in all the territory of the Paraguayan Republic.# ...Rule	Para	2010	max	-	Oct	Sun>=1	0:00	1:00	SRule	Para	2010	max	-	Apr	Sun>=8	0:00	0	-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone America/Asuncion	-3:50:40 -	LMT	1890			-3:50:40 -	AMT	1931 Oct 10 # Asuncion Mean Time			-4:00	-	PYT	1972 Oct # Paraguay Time			-3:00	-	PYT	1974 Apr			-4:00	Para	PY%sT# Peru## <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net"># From Evelyn C. Leeper via Mark Brader (2003-10-26):</a># When we were in Peru in 1985-1986, they apparently switched over# sometime between December 29 and January 3 while we were on the Amazon.## From Paul Eggert (2006-03-22):# Shanks & Pottenger don't have this transition.  Assume 1986 was like 1987.# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/SRule	Peru	1938	only	-	Jan	 1	0:00	1:00	SRule	Peru	1938	only	-	Apr	 1	0:00	0	-Rule	Peru	1938	1939	-	Sep	lastSun	0:00	1:00	SRule	Peru	1939	1940	-	Mar	Sun>=24	0:00	0	-Rule	Peru	1986	1987	-	Jan	 1	0:00	1:00	SRule	Peru	1986	1987	-	Apr	 1	0:00	0	-Rule	Peru	1990	only	-	Jan	 1	0:00	1:00	SRule	Peru	1990	only	-	Apr	 1	0:00	0	-# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.Rule	Peru	1994	only	-	Jan	 1	0:00	1:00	SRule	Peru	1994	only	-	Apr	 1	0:00	0	-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone	America/Lima	-5:08:12 -	LMT	1890			-5:08:36 -	LMT	1908 Jul 28 # Lima Mean Time?			-5:00	Peru	PE%sT	# Peru Time# South Georgia# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone Atlantic/South_Georgia -2:26:08 -	LMT	1890		# Grytviken			-2:00	-	GST	# South Georgia Time# South Sandwich Is# uninhabited; scientific personnel have wintered# Suriname# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone America/Paramaribo	-3:40:40 -	LMT	1911			-3:40:52 -	PMT	1935     # Paramaribo Mean Time			-3:40:36 -	PMT	1945 Oct # The capital moved?			-3:30	-	NEGT	1975 Nov 20 # Dutch Guiana Time			-3:30	-	SRT	1984 Oct # Suriname Time			-3:00	-	SRT# Trinidad and Tobago# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone America/Port_of_Spain -4:06:04 -	LMT	1912 Mar 2			-4:00	-	AST# Uruguay# From Paul Eggert (1993-11-18):# Uruguay wins the prize for the strangest peacetime manipulation of the rules.# From Shanks & Pottenger:# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S# Whitman gives 1923 Oct 1; go with Shanks & Pottenger.Rule	Uruguay	1923	only	-	Oct	 2	 0:00	0:30	HSRule	Uruguay	1924	1926	-	Apr	 1	 0:00	0	-Rule	Uruguay	1924	1925	-	Oct	 1	 0:00	0:30	HSRule	Uruguay	1933	1935	-	Oct	lastSun	 0:00	0:30	HS# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman.Rule	Uruguay	1934	1936	-	Mar	Sat>=25	23:30s	0	-Rule	Uruguay	1936	only	-	Nov	 1	 0:00	0:30	HSRule	Uruguay	1937	1941	-	Mar	lastSun	 0:00	0	-# Whitman gives 1937 Oct 3; go with Shanks & Pottenger.Rule	Uruguay	1937	1940	-	Oct	lastSun	 0:00	0:30	HS# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13,# and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger.Rule	Uruguay	1941	only	-	Aug	 1	 0:00	0:30	HSRule	Uruguay	1942	only	-	Jan	 1	 0:00	0	-Rule	Uruguay	1942	only	-	Dec	14	 0:00	1:00	SRule	Uruguay	1943	only	-	Mar	14	 0:00	0	-Rule	Uruguay	1959	only	-	May	24	 0:00	1:00	SRule	Uruguay	1959	only	-	Nov	15	 0:00	0	-Rule	Uruguay	1960	only	-	Jan	17	 0:00	1:00	SRule	Uruguay	1960	only	-	Mar	 6	 0:00	0	-Rule	Uruguay	1965	1967	-	Apr	Sun>=1	 0:00	1:00	SRule	Uruguay	1965	only	-	Sep	26	 0:00	0	-Rule	Uruguay	1966	1967	-	Oct	31	 0:00	0	-Rule	Uruguay	1968	1970	-	May	27	 0:00	0:30	HSRule	Uruguay	1968	1970	-	Dec	 2	 0:00	0	-Rule	Uruguay	1972	only	-	Apr	24	 0:00	1:00	SRule	Uruguay	1972	only	-	Aug	15	 0:00	0	-Rule	Uruguay	1974	only	-	Mar	10	 0:00	0:30	HSRule	Uruguay	1974	only	-	Dec	22	 0:00	1:00	SRule	Uruguay	1976	only	-	Oct	 1	 0:00	0	-Rule	Uruguay	1977	only	-	Dec	 4	 0:00	1:00	SRule	Uruguay	1978	only	-	Apr	 1	 0:00	0	-Rule	Uruguay	1979	only	-	Oct	 1	 0:00	1:00	SRule	Uruguay	1980	only	-	May	 1	 0:00	0	-Rule	Uruguay	1987	only	-	Dec	14	 0:00	1:00	SRule	Uruguay	1988	only	-	Mar	14	 0:00	0	-Rule	Uruguay	1988	only	-	Dec	11	 0:00	1:00	SRule	Uruguay	1989	only	-	Mar	12	 0:00	0	-Rule	Uruguay	1989	only	-	Oct	29	 0:00	1:00	S# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2,# and that 1992/3's DST was from 10-25 to 03-01.  Go with IATA.Rule	Uruguay	1990	1992	-	Mar	Sun>=1	 0:00	0	-Rule	Uruguay	1990	1991	-	Oct	Sun>=21	 0:00	1:00	SRule	Uruguay	1992	only	-	Oct	18	 0:00	1:00	SRule	Uruguay	1993	only	-	Feb	28	 0:00	0	-# From Eduardo Cota (2004-09-20):# The uruguayan government has decreed a change in the local time....# http://www.presidencia.gub.uy/decretos/2004091502.htmRule	Uruguay	2004	only	-	Sep	19	 0:00	1:00	S# From Steffen Thorsen (2005-03-11):# Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to# save energy ... it was postponed two weeks....# http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htmRule	Uruguay	2005	only	-	Mar	27	 2:00	0	-# From Eduardo Cota (2005-09-27):# http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF# This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at# 02:00 local time, official time in Uruguay will be at GMT -2.Rule	Uruguay	2005	only	-	Oct	 9	 2:00	1:00	SRule	Uruguay	2006	only	-	Mar	12	 2:00	0	-# From Jesper Norgaard Welen (2006-09-06):# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDFRule	Uruguay	2006	max	-	Oct	Sun>=1	 2:00	1:00	SRule	Uruguay	2007	max	-	Mar	Sun>=8	 2:00	0	-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone America/Montevideo	-3:44:44 -	LMT	1898 Jun 28			-3:44:44 -	MMT	1920 May  1	# Montevideo MT			-3:30	Uruguay	UY%sT	1942 Dec 14	# Uruguay Time			-3:00	Uruguay	UY%sT# Venezuela## From John Stainforth (2007-11-28):# ... the change for Venezuela originally expected for 2007-12-31 has# been brought forward to 2007-12-09.  The official announcement was# published today in the "Gaceta Oficial de la Republica Bolivariana# de Venezuela, numero 38.819" (official document for all laws or# resolution publication)# http://www.globovision.com/news.php?nid=72208# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]Zone	America/Caracas	-4:27:44 -	LMT	1890			-4:27:40 -	CMT	1912 Feb 12 # Caracas Mean Time?			-4:30	-	VET	1965	     # Venezuela Time			-4:00	-	VET	2007 Dec  9 03:00			-4:30	-	VET
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