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1# @(#)southamerica 7.43
1# @(#)southamerica 7.45
2
3# This data is by no means authoritative; if you think you know better,
4# go ahead and edit the file (and please send any changes to
5# tz@elsie.nci.nih.gov for general use in the future).
6
7# From Paul Eggert <eggert@twinsun.com> (1999-07-07):
8# A good source for time zone historical data outside the U.S. is
9# Thomas G. Shanks, The International Atlas (5th edition),

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169# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
170# Formosa (FM), Salta (SA), Tucuman (TM), Santiago del Estero (SE),
171# Cordoba (CB), La Rioja (LR), San Juan (SJ), San Luis (SL), La Pampa (LP),
172# Neuquen (NQ), Rio Negro (RN), Chubut (CH)
173#
174# Shanks also makes the following claims, which we haven't verified:
175# - Formosa switched to -3:00 on 1991-01-07.
176# - La Rioja and San Juan switched to -4:00 on 1991-03-01
2
3# This data is by no means authoritative; if you think you know better,
4# go ahead and edit the file (and please send any changes to
5# tz@elsie.nci.nih.gov for general use in the future).
6
7# From Paul Eggert <eggert@twinsun.com> (1999-07-07):
8# A good source for time zone historical data outside the U.S. is
9# Thomas G. Shanks, The International Atlas (5th edition),

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169# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
170# Formosa (FM), Salta (SA), Tucuman (TM), Santiago del Estero (SE),
171# Cordoba (CB), La Rioja (LR), San Juan (SJ), San Luis (SL), La Pampa (LP),
172# Neuquen (NQ), Rio Negro (RN), Chubut (CH)
173#
174# Shanks also makes the following claims, which we haven't verified:
175# - Formosa switched to -3:00 on 1991-01-07.
176# - La Rioja and San Juan switched to -4:00 on 1991-03-01
177# and then to 03:00 on 1991-05-07.
177# and then to -3:00 on 1991-05-07.
178# - Misiones switched to -3:00 on 1990-12-29.
179# - Chaco switched to -3:00 on 1991-01-04.
180# - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15,
181# then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01.
182# - Santiago del Estero switched to -4:00 on 1991-04-01,
183# then to -3:00 on 1991-04-26.
184# If we need to add Zones for these areas, we may need to have a subdirectory
185# for Argentina, as e.g. "America/San_Luis" is too ambiguious.

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287# Brazilian official page
288# </a>
289
290# From Jesper Norgaard (2000-11-03):
291# [For an official list of which regions in Brazil use which time zones, see:]
292# http://pcdsh01.on.br/Fusbr.htm
293# http://pcdsh01.on.br/Fusbrhv.htm
294
178# - Misiones switched to -3:00 on 1990-12-29.
179# - Chaco switched to -3:00 on 1991-01-04.
180# - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15,
181# then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01.
182# - Santiago del Estero switched to -4:00 on 1991-04-01,
183# then to -3:00 on 1991-04-26.
184# If we need to add Zones for these areas, we may need to have a subdirectory
185# for Argentina, as e.g. "America/San_Luis" is too ambiguious.

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287# Brazilian official page
288# </a>
289
290# From Jesper Norgaard (2000-11-03):
291# [For an official list of which regions in Brazil use which time zones, see:]
292# http://pcdsh01.on.br/Fusbr.htm
293# http://pcdsh01.on.br/Fusbrhv.htm
294
295# From Paul Eggert (2000-10-02):
296# The official decrees referenced below are taken from
295# From Celso Doria via David Madeo (2002-10-09):
296# The reason for the delay this year has to do with elections in Brazil.
297#
298# Unlike in the United States, elections in Brazil are 100% computerized and
299# the results are known almost immediately. Yesterday, it was the first
300# round of the elections when 115 million Brazilians voted for President,
301# Governor, Senators, Federal Deputies, and State Deputies. Nobody is
302# counting (or re-counting) votes anymore and we know there will be a second
303# round for the Presidency and also for some Governors. The 2nd round will
304# take place on October 27th.
305#
306# The reason why the DST will only begin November 3rd is that the thousands
307# of electoral machines used cannot have their time changed, and since the
308# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM,
309# the Government decided to postpone DST, instead of changing the Constitution
310# (maybe, for the next elections, it will be possible to change the clock)...
311
312# From Paul Eggert (2002-10-10):
313# The official decrees referenced below are mostly taken from
297# <a href="http://pcdsh01.on.br/DecHV.html">
298# Decretos sobre o Horario de Verao no Brasil
314# <a href="http://pcdsh01.on.br/DecHV.html">
315# Decretos sobre o Horario de Verao no Brasil
299# </a> (1999-10-04, in Portuguese).
316# </a> (2001-09-20, in Portuguese).
300# The official site for all decrees, including those not related to time, is
301# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/principal_ano.htm">
302# Presidencia da Republica, Subchefia para Assuntos Juridicos, Decretos
303# </a> (in Portuguese).
304
305# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
306# Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01)
307# Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10)

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416# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06)
417# adopted by the same states as before.
418# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13)
419# repeals DST in PE and RR, effective 2000-10-15 00:00.
420# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17)
421# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00.
422# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a>
423# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.
317# The official site for all decrees, including those not related to time, is
318# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/principal_ano.htm">
319# Presidencia da Republica, Subchefia para Assuntos Juridicos, Decretos
320# </a> (in Portuguese).
321
322# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
323# Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01)
324# Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10)

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433# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06)
434# adopted by the same states as before.
435# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13)
436# repeals DST in PE and RR, effective 2000-10-15 00:00.
437# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17)
438# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00.
439# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a>
440# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.
441Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S
442Rule Brazil 2001 max - Feb Sun>=15 0:00 0 -
443# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.
444# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm"></a>
445Rule Brazil 2002 only - Nov 3 0:00 1:00 S
424#
446#
447Rule Brazil 2003 max - Oct Sun>=8 0:00 1:00 S
425# The latest decree listed above says that the following states observe DST:
448# The latest decree listed above says that the following states observe DST:
426# AL, BA, CE, DF, ES, GO, MA, MG, MS, MT,
427# PB, PE, PI, PR, RJ, RN, RS, SC, SE, SP, TO.
449# BA, DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP, TO.
428#
450#
429# For dates after mid-2002, the following rules are guesses
451# For dates after mid-2003, the above rules with TO="max" are guesses
430# and are quite possibly wrong, but are more likely than no DST at all.
452# and are quite possibly wrong, but are more likely than no DST at all.
431Rule Brazil 2000 max - Oct Sun>=8 0:00 1:00 S
432Rule Brazil 2001 max - Feb Sun>=15 0:00 0 -
433
434
435# Zone NAME GMTOFF RULES FORMAT [UNTIL]
436#
437# Atlantic islands: Fernando de Noronha, Trindade, Martin Vaz,
438# Atol das Rocas, and Penedos de Sao Pedro e Sao Paulo
439Zone America/Noronha -2:09:40 - LMT 1914
440 -2:00 Brazil FN%sT 1990 Sep 17

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448#
449# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN),
450# Paraiba (PB)
451Zone America/Fortaleza -2:34:00 - LMT 1914
452 -3:00 Brazil BR%sT 1990 Sep 17
453 -3:00 - BRT 1999 Sep 30
454 -3:00 Brazil BR%sT 2000 Oct 22
455 -3:00 - BRT 2001 Sep 13
453
454
455# Zone NAME GMTOFF RULES FORMAT [UNTIL]
456#
457# Atlantic islands: Fernando de Noronha, Trindade, Martin Vaz,
458# Atol das Rocas, and Penedos de Sao Pedro e Sao Paulo
459Zone America/Noronha -2:09:40 - LMT 1914
460 -2:00 Brazil FN%sT 1990 Sep 17

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468#
469# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN),
470# Paraiba (PB)
471Zone America/Fortaleza -2:34:00 - LMT 1914
472 -3:00 Brazil BR%sT 1990 Sep 17
473 -3:00 - BRT 1999 Sep 30
474 -3:00 Brazil BR%sT 2000 Oct 22
475 -3:00 - BRT 2001 Sep 13
456 -3:00 Brazil BR%sT
476 -3:00 Brazil BR%sT 2002 Oct 1
477 -3:00 - BRT
457#
458# Pernambuco (PE) (except Atlantic islands)
459Zone America/Recife -2:19:36 - LMT 1914
460 -3:00 Brazil BR%sT 1990 Sep 17
461 -3:00 - BRT 1999 Sep 30
462 -3:00 Brazil BR%sT 2000 Oct 15
463 -3:00 - BRT 2001 Sep 13
478#
479# Pernambuco (PE) (except Atlantic islands)
480Zone America/Recife -2:19:36 - LMT 1914
481 -3:00 Brazil BR%sT 1990 Sep 17
482 -3:00 - BRT 1999 Sep 30
483 -3:00 Brazil BR%sT 2000 Oct 15
484 -3:00 - BRT 2001 Sep 13
464 -3:00 Brazil BR%sT
485 -3:00 Brazil BR%sT 2002 Oct 1
486 -3:00 - BRT
465#
466# Tocantins (TO)
467Zone America/Araguaina -3:12:48 - LMT 1914
468 -3:00 Brazil BR%sT 1990 Sep 17
469 -3:00 - BRT 1995 Sep 14
470 -3:00 Brazil BR%sT
471#
472# Alagoas (AL), Sergipe (SE)
473Zone America/Maceio -2:22:52 - LMT 1914
474 -3:00 Brazil BR%sT 1990 Sep 17
475 -3:00 - BRT 1995 Oct 13
476 -3:00 Brazil BR%sT 1996 Sep 4
477 -3:00 - BRT 1999 Sep 30
478 -3:00 Brazil BR%sT 2000 Oct 22
479 -3:00 - BRT 2001 Sep 13
487#
488# Tocantins (TO)
489Zone America/Araguaina -3:12:48 - LMT 1914
490 -3:00 Brazil BR%sT 1990 Sep 17
491 -3:00 - BRT 1995 Sep 14
492 -3:00 Brazil BR%sT
493#
494# Alagoas (AL), Sergipe (SE)
495Zone America/Maceio -2:22:52 - LMT 1914
496 -3:00 Brazil BR%sT 1990 Sep 17
497 -3:00 - BRT 1995 Oct 13
498 -3:00 Brazil BR%sT 1996 Sep 4
499 -3:00 - BRT 1999 Sep 30
500 -3:00 Brazil BR%sT 2000 Oct 22
501 -3:00 - BRT 2001 Sep 13
480 -3:00 Brazil BR%sT
502 -3:00 Brazil BR%sT 2002 Oct 1
503 -3:00 - BRT
481#
482# Bahia (BA), Goias (GO), Distrito Federal (DF), Minas Gerais (MG),
483# Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR),
484# Santa Catarina (SC), Rio Grande do Sul (RS)
485Zone America/Sao_Paulo -3:06:28 - LMT 1914
486 -3:00 Brazil BR%sT 1963 Oct 23 00:00
487 -3:00 1:00 BRST 1964
488 -3:00 Brazil BR%sT

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505# Bahia (BA), Goias (GO), Distrito Federal (DF), Minas Gerais (MG),
506# Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR),
507# Santa Catarina (SC), Rio Grande do Sul (RS)
508Zone America/Sao_Paulo -3:06:28 - LMT 1914
509 -3:00 Brazil BR%sT 1963 Oct 23 00:00
510 -3:00 1:00 BRST 1964
511 -3:00 Brazil BR%sT

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