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			-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 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> (2001-09-20, in Portuguese).
# The official site for all decrees, including those not related to time, is
# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/principal_ano.htm">
# Presidencia da Republica, Subchefia para Assuntos Juridicos, Decretos
# </a> (in Portuguese).

# 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.
#
# From Paul Eggert (1998-02-25):
# <a href="http://churchnet.ucsm.ac.uk/news/files2/news165.htm">
# Brazil Prepares for Papal Visit
# </a>,
# Church Net UK (1997-10-02).
#
# 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	max	-	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"></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"></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"></a>
Rule	Brazil	2004	only	-	Nov	 2	 0:00	1:00	S
# The latest ruleset listed above says that the following states observe DST:
# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
#
Rule	Brazil	2005	max	-	Oct	Sun>=15	 0:00	1:00	S
# For dates after mid-2005, the above rules with TO="max" are guesses
# and are quite possibly wrong, but are more likely than no DST at all.


# 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
#
# 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
#
# 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
#
# 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
#
# west Para (PA), Rondonia (RO)
# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
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
#
# Acre (AC)
Zone America/Rio_Branco	-4:31:12 -	LMT	1914
			-5:00	Brazil	AC%sT	1988 Sep 12
			-5:00	-	ACT


# 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 Gwillim Law (2001-05-04):
# I came across another article in "La Tercera" about Chilean DST.