Dear list, First of all, I would like to apologize for the confusion I might have caused with my previous emails. The corrections for the brazilian rules and zones I sent where already included in tzdata. I hope this haven't created any problems. Now I send another set of corrections for the brazilian tz data. I have just finished a full review of its rules and zoneinfo from the decrees list at the Brazilian National Observatory (main source of time info in Brazil, the same source already used by previous authors) with the following problems identified and corrected: 1. The effects of decrees 52700 (1963-10-18) and 53071 (1963-12-03) weren't correctly represented by the data as what they really have done was to make a set of states start DST at 1963-10-23 00:00 and the rest of the country to start DST at 1963-12-09 00:00. Fix: change the rule and all affected zones (almost all of them). Also had to create a new Brasilia zone to acomodate the diferences between Sao_Paulo zone and Goias (GO), Distrito Federal (DF), Parana (PR), Santa Catarina (SC), Rio Grande do Sul (RS). 2. The starting time of DST for 1966 was wrong as the 57843 decree stablishes that DST shall begin at 1966-03-01 01:00 and on 1st of March 00:00 from 1967 and on. Fix: new rule for DST start at 1966. 3. Decree 1252 (1994-09-22) defines that the previous states minus AM _AND_ MT states would have DST during 1994/1995 summer. The author of the previous comment probably relied on the Brazilian National Observatory resume of the decree - which is wrong - and not on the actual decree itself (also available at the Brazilian National Observatory site). Fix: America/Cuiaba zone fix. 4. Fernando de Noronha island had wrong timezone info as it should include all DSTs for the Pernambuco state after 1988 as Fernando de Noronha island became part of the Pernambuco state after the brazilian contitution of 1988. If someone has any doubt about it, please check decree 96676 (pre 1988) which clearly includes Pernambuco state, Fernando de Noronha and Atlantic islands. Compare with decree 98077 (pos 1988) which clearly includes Pernambuco state and Atlantic islands (doesn't mention Fernando de Noronha because it already mentioned Pernambuco). Fix: Include all DSTs for Pernambuco after 1988 and create new zone Atol_das_Rocas for the atlantic islands. Maybe this new zone should be called Brazilian_Atlantic_Islands? Too long? 5. America/Sao_Paulo zone had a DST during the whole 1964. I can't see where it came from. There is no decree mentioning it. Fix: Remove it spurious zone info. The patch I am including here is based on the data available at ftp://elsie.nci.nih.gov/pub/ dated 10/06/2003 01:41:00 PM. If someone has any comments on these changes, please send a copy to my personal email as I not sure if I am already subscribed to this list. Thanks in advance for your attention, Rodrigo Severo -- ---------------------------------------------------- Rodrigo Severo Fábrica de Idéias Fone: +55(61)321 1357 Fax: +55(61)223 1712 SBS - Quadra 2 - Ed. Empire Center - Sala 1301 Brasília/DF - Brasil CEP: 70.070-904 ---------------------------------------------------- *** zoneinfo.original/southamerica 2003-10-06 10:34:33.000000000 -0300 --- zoneinfo/southamerica 2003-10-16 19:47:01.000000000 -0300 *************** *** 338,359 **** # 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 --- 338,367 ---- # 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 1963-12-09. ! # Rodrigo Severo (corrected on 2003-10-16): the following rule correctly ! # represents the full period mentioned by the decree 52700 above. ! # The different states under DST before and after 1963-12-09 are ! # represented by the zones below. ! Rule Brazil 1963 only - Oct 23 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) ! # Rodrigo Severo (corrected 2003-10-16): decree 57843 stablishes the end ! # of DST for 1966 at the 1st hour of 1966-03-01, not at zero hour. DST for ! # the following years end at the zero hour of 1st March. ! Rule Brazil 1966 only - Mar 1 1:00 0 - ! Rule Brazil 1967 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 *************** *** 388,398 **** 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) ! # 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 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 --- 396,409 ---- 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) ! # adopted by same states, minus AM. ! # Rodrigo Severo (corrected in 2003-10-16): the previous decree excludes MT ! # also. Please refer to the decree itself, not to the wrong resume by the ! # Brazilian National Observatory for the correct list of states included. # Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14) # adopted by same states, plus 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 *************** *** 453,505 **** # and are quite possibly wrong, but are more likely than no DST at all. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # ! # Atlantic islands: Fernando de Noronha, Trindade, Martin Vaz, ! # Atol das Rocas, and Penedos de Sao Pedro e Sao Paulo Zone America/Noronha -2:09:40 - LMT 1914 -2:00 Brazil FN%sT 1990 Sep 17 -2:00 - FNT # # 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 --- 464,563 ---- # and are quite possibly wrong, but are more likely than no DST at all. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # ! # Fernando de Noronha ! # Rodrigo Severo (corrected on 2003-10-16) to correctly represent ! # the combined effect of decrees 52700 (1963-10-18) and ! # 53071 (1963-12-03). Also included all DSTs that included the state ! # of Pernambuco (PE) after 1988 as Fernando de Noronha island became ! # part of the Pernambuco state with the new brazilian constitution ! # of 1988. Zone America/Noronha -2:09:40 - LMT 1914 + -2:00 Brazil FN%sT 1963 Oct 18 + -2:00 - FNT 1963 Dec 9 -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 # + # Atlantic islands: Trindade, Martin Vaz, Atol das Rocas, and + # Penedos de Sao Pedro e Sao Paulo + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Separated from America/Noronha. + Zone America/Atol_das_Rocas -2:09:40 - LMT 1914 + -2:00 Brazil AR%sT 1963 Oct 18 + -2:00 - ART 1963 Dec 9 + -2:00 Brazil AR%sT 1990 Sep 17 + -2:00 - ART + # # 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. + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Belem -3:13:56 - LMT 1914 + -3:00 Brazil BR%sT 1963 Oct 18 + -3:00 - BRT 1963 Dec 9 -3:00 Brazil BR%sT 1988 Sep 12 -3:00 - BRT # # Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN), # Paraiba (PB) + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Fortaleza -2:34:00 - LMT 1914 + -3:00 Brazil BR%sT 1963 Oct 18 + -3:00 - BRT 1963 Dec 9 -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) ! # Rodrigo Severo (corrected on 2003-10-16) to correctly represent ! # the combined effect of decrees 52700 (1963-10-18) and ! # 53071 (1963-12-03). Zone America/Recife -2:19:36 - LMT 1914 + -3:00 Brazil BR%sT 1963 Oct 18 + -3:00 - BRT 1963 Dec 9 -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) + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Araguaina -3:12:48 - LMT 1914 + -3:00 Brazil BR%sT 1963 Oct 18 + -3:00 - BRT 1963 Dec 9 -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) + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Maceio -2:22:52 - LMT 1914 + -3:00 Brazil BR%sT 1963 Oct 18 + -3:00 - BRT 1963 Dec 9 -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 *************** *** 508,570 **** -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 # # 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 --- 566,678 ---- -3:00 - BRT # # Bahia (BA) # There are too many Salvadors elsewhere, so use America/Bahia instead # of America/Salvador. + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Bahia -2:34:04 - LMT 1914 + -3:00 Brazil BR%sT 1963 Oct 18 + -3:00 - BRT 1963 Dec 9 -3:00 Brazil BR%sT 2003 Sep 24 -3:00 - BRT # ! # Goias (GO), Distrito Federal (DF), Parana (PR), # Santa Catarina (SC), Rio Grande do Sul (RS) + # Rodrigo Severo (corrected on 2003-10-16): separated from + # America/Sao_Paulo to correctly represent the combined effect + # of decrees 52700 (1963-10-18) and 53071 (1963-12-03). + Zone America/Brasilia -3:06:28 - LMT 1914 + -3:00 Brazil BR%sT 1963 Oct 18 + -3:00 - BRT 1963 Dec 9 + -3:00 Brazil BR%sT + # + # Minas Gerais (MG), Espirito Santo (ES), Rio de Janeiro (RJ), + # Sao Paulo (SP) Zone America/Sao_Paulo -3:06:28 - LMT 1914 -3:00 Brazil BR%sT # # Mato Grosso do Sul (MS) + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Campo_Grande -3:38:28 - LMT 1914 + -4:00 Brazil AM%sT 1963 Oct 18 + -4:00 - AMT 1963 Dec 9 -4:00 Brazil AM%sT # # Mato Grosso (MT) + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Also corrected to represent the states listed + # in decree 1252 (1994-09-22). Zone America/Cuiaba -3:44:20 - LMT 1914 + -4:00 Brazil AM%sT 1963 Oct 18 + -4:00 - AMT 1963 Dec 9 + -4:00 Brazil AM%sT 1994 Sep 22 + -4:00 - AMT 1995 Sep 14 -4:00 Brazil AM%sT 2003 Sep 24 -4:00 - AMT # # west Para (PA), Rondonia (RO) # West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem. + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Porto_Velho -4:15:36 - LMT 1914 + -4:00 Brazil AM%sT 1963 Oct 18 + -4:00 - AMT 1963 Dec 9 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT # # Roraima (RR) + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Boa_Vista -4:02:40 - LMT 1914 + -4:00 Brazil AM%sT 1963 Oct 18 + -4:00 - AMT 1963 Dec 9 -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. + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Manaus -4:00:04 - LMT 1914 + -4:00 Brazil AM%sT 1963 Oct 18 + -4:00 - AMT 1963 Dec 9 -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 + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Eirunepe -4:39:28 - LMT 1914 + -5:00 Brazil AC%sT 1963 Oct 18 + -5:00 - ACT 1963 Dec 9 -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) + # Rodrigo Severo (corrected on 2003-10-16) to correctly represent + # the combined effect of decrees 52700 (1963-10-18) and + # 53071 (1963-12-03). Zone America/Rio_Branco -4:31:12 - LMT 1914 + -5:00 Brazil AC%sT 1963 Oct 18 + -5:00 - ACT 1963 Dec 9 -5:00 Brazil AC%sT 1988 Sep 12 -5:00 - ACT # Chile