# <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/S


Rule	Arg	1930	only	-	Dec	 1	0:00	1:00	S


Rule	Arg	1931	only	-	Apr	 1	0:00	0	-


Rule	Arg	1931	only	-	Oct	15	0:00	1:00	S


Rule	Arg	1932	1940	-	Mar	 1	0:00	0	-


Rule	Arg	1932	1939	-	Nov	 1	0:00	1:00	S


Rule	Arg	1940	only	-	Jul	 1	0:00	1:00	S


Rule	Arg	1941	only	-	Jun	15	0:00	0	-


Rule	Arg	1941	only	-	Oct	15	0:00	1:00	S


Rule	Arg	1943	only	-	Aug	 1	0:00	0	-


Rule	Arg	1943	only	-	Oct	15	0:00	1:00	S


Rule	Arg	1946	only	-	Mar	 1	0:00	0	-


Rule	Arg	1946	only	-	Oct	 1	0:00	1:00	S


Rule	Arg	1963	only	-	Oct	 1	0:00	0	-


Rule	Arg	1963	only	-	Dec	15	0:00	1:00	S


Rule	Arg	1964	1966	-	Mar	 1	0:00	0	-


Rule	Arg	1964	1966	-	Oct	15	0:00	1:00	S


Rule	Arg	1967	only	-	Apr	 2	0:00	0	-


Rule	Arg	1967	1968	-	Oct	Sun>=1	0:00	1:00	S


Rule	Arg	1968	1969	-	Apr	Sun>=1	0:00	0	-


Rule	Arg	1974	only	-	Jan	23	0:00	1:00	S


Rule	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	S


Rule	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 Nacin) 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:


#  (...) anunci que el prximo domingo a las 00:00 los puntanos debern


# atrasar una hora sus relojes.


#


# A partir de entonces, San Luis establecer el huso horario propio de


# la Provincia. De esta manera, durante el periodo del calendario anual


# 2009, el cambio horario quedar comprendido entre las 00:00 del tercer


# domingo de marzo y las 24:00 del segundo sbado 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 pr&oacute;rroga 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	S





Zone 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 Brando 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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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 exceptions


Rule	Brazil	1989	only	-	Oct	15	 0:00	1:00	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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	S


Rule	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, Ipixuna


Zone 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/S


Rule	Chile	1927	1932	-	Sep	 1	0:00	1:00	S


Rule	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	S


Rule	Chile	1946	only	-	Jul	15	4:00u	1:00	S


Rule	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	S


Rule	Chile	1969	only	-	Mar	30	3:00u	0	-


Rule	Chile	1969	only	-	Nov	23	4:00u	1:00	S


Rule	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	S


Rule	Chile	1972	1986	-	Mar	Sun>=9	3:00u	0	-


Rule	Chile	1973	only	-	Sep	30	4:00u	1:00	S


Rule	Chile	1974	1987	-	Oct	Sun>=9	4:00u	1:00	S


Rule	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	S


Rule	Chile	1989	only	-	Oct	Sun>=9	4:00u	1:00	S


Rule	Chile	1990	only	-	Mar	18	3:00u	0	-


Rule	Chile	1990	only	-	Sep	16	4:00u	1:00	S


Rule	Chile	1991	1996	-	Mar	Sun>=9	3:00u	0	-


Rule	Chile	1991	1997	-	Oct	Sun>=9	4:00u	1:00	S


Rule	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	S


Rule	Chile	1999	only	-	Apr	 4	3:00u	0	-


Rule	Chile	1999	2010	-	Oct	Sun>=9	4:00u	1:00	S


Rule	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	S


Rule	Chile	2012	only	-	Apr	Sun>=23	3:00u	0	-


Rule	Chile	2012	only	-	Sep	Sun>=2	4:00u	1:00	S


Rule	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%sT


Zone 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/S


Rule	CO	1992	only	-	May	 3	0:00	1:00	S


Rule	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 Maarten


Link	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 Time


Zone 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/S


Rule	Falk	1937	1938	-	Sep	lastSun	0:00	1:00	S


Rule	Falk	1938	1942	-	Mar	Sun>=19	0:00	0	-


Rule	Falk	1939	only	-	Oct	1	0:00	1:00	S


Rule	Falk	1940	1942	-	Sep	lastSun	0:00	1:00	S


Rule	Falk	1943	only	-	Jan	1	0:00	0	-


Rule	Falk	1983	only	-	Sep	lastSun	0:00	1:00	S


Rule	Falk	1984	1985	-	Apr	lastSun	0:00	0	-


Rule	Falk	1984	only	-	Sep	16	0:00	1:00	S


Rule	Falk	1985	2000	-	Sep	Sun>=9	0:00	1:00	S


Rule	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/S


Rule	Para	1975	1988	-	Oct	 1	0:00	1:00	S


Rule	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	S


Rule	Para	1990	only	-	Oct	 1	0:00	1:00	S


Rule	Para	1991	only	-	Oct	 6	0:00	1:00	S


Rule	Para	1992	only	-	Mar	 1	0:00	0	-


Rule	Para	1992	only	-	Oct	 5	0:00	1:00	S


Rule	Para	1993	only	-	Mar	31	0:00	0	-


Rule	Para	1993	1995	-	Oct	 1	0:00	1:00	S


Rule	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	S


Rule	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	S


Rule	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/S


Rule	Peru	1938	only	-	Jan	 1	0:00	1:00	S


Rule	Peru	1938	only	-	Apr	 1	0:00	0	-


Rule	Peru	1938	1939	-	Sep	lastSun	0:00	1:00	S


Rule	Peru	1939	1940	-	Mar	Sun>=24	0:00	0	-


Rule	Peru	1986	1987	-	Jan	 1	0:00	1:00	S


Rule	Peru	1986	1987	-	Apr	 1	0:00	0	-


Rule	Peru	1990	only	-	Jan	 1	0:00	1:00	S


Rule	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	S


Rule	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	HS


Rule	Uruguay	1924	1926	-	Apr	 1	 0:00	0	-


Rule	Uruguay	1924	1925	-	Oct	 1	 0:00	0:30	HS


Rule	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	HS


Rule	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	HS


Rule	Uruguay	1942	only	-	Jan	 1	 0:00	0	-


Rule	Uruguay	1942	only	-	Dec	14	 0:00	1:00	S


Rule	Uruguay	1943	only	-	Mar	14	 0:00	0	-


Rule	Uruguay	1959	only	-	May	24	 0:00	1:00	S


Rule	Uruguay	1959	only	-	Nov	15	 0:00	0	-


Rule	Uruguay	1960	only	-	Jan	17	 0:00	1:00	S


Rule	Uruguay	1960	only	-	Mar	 6	 0:00	0	-


Rule	Uruguay	1965	1967	-	Apr	Sun>=1	 0:00	1:00	S


Rule	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	HS


Rule	Uruguay	1968	1970	-	Dec	 2	 0:00	0	-


Rule	Uruguay	1972	only	-	Apr	24	 0:00	1:00	S


Rule	Uruguay	1972	only	-	Aug	15	 0:00	0	-


Rule	Uruguay	1974	only	-	Mar	10	 0:00	0:30	HS


Rule	Uruguay	1974	only	-	Dec	22	 0:00	1:00	S


Rule	Uruguay	1976	only	-	Oct	 1	 0:00	0	-


Rule	Uruguay	1977	only	-	Dec	 4	 0:00	1:00	S


Rule	Uruguay	1978	only	-	Apr	 1	 0:00	0	-


Rule	Uruguay	1979	only	-	Oct	 1	 0:00	1:00	S


Rule	Uruguay	1980	only	-	May	 1	 0:00	0	-


Rule	Uruguay	1987	only	-	Dec	14	 0:00	1:00	S


Rule	Uruguay	1988	only	-	Mar	14	 0:00	0	-


Rule	Uruguay	1988	only	-	Dec	11	 0:00	1:00	S


Rule	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	S


Rule	Uruguay	1992	only	-	Oct	18	 0:00	1:00	S


Rule	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.htm


Rule	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.htm


Rule	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	S


Rule	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.PDF


Rule	Uruguay	2006	max	-	Oct	Sun>=1	 2:00	1:00	S


Rule	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


