Re: proposed changes
Paul Schulze was kind enough to point out a geography error in the proposed changes; the change below is on top of those circulated yesterday. The changes below also eliminate the single accented character in the southamerica file (for consistency); we'll see what the future holds for accented characters. --ado ------- southamerica ------- *** /tmp/geta22393 Tue Jul 1 10:24:02 2008 --- /tmp/getb22393 Tue Jul 1 10:24:02 2008 *************** *** 1,4 **** ! # @(#)southamerica 8.22 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)southamerica 8.23 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 825,831 **** -3:00 - BRT # # Rondonia (RO) - # Rondonia includes Altamira, Oribidos, Prainha, and Oriximina. Zone America/Porto_Velho -4:15:36 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT --- 825,830 ---- *************** *** 905,911 **** # http://www.horaoficial.cl/cambio.htm # </a>. ! # From José 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"> --- 904,910 ---- # 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">
On Tue, Jul 1, 2008 at 11:30 AM, Arthur David Olson < olsona@elsie.nci.nih.gov> wrote:
Paul Schulze was kind enough to point out a geography error in the proposed changes; the change below is on top of those circulated yesterday. The changes below also eliminate the single accented character in the southamerica file (for consistency); we'll see what the future holds for accented characters.
As the imediate move is to remove accented characters the text by Paul Schulze should read: + # 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. Please notice that the above text is different from both the first version sent by Olson and the second, sent by me. The first had no accent characters at all, i.e., missing letters. The second had the accented characters with the accents. This one, the third, has the accented characters without the accents which seems to be the desired goal before UTF-8 or something similar is adopted. Regards, Rodrigo Severo -- --------------------------------------------------------------------------------------- Rodrigo Severo Fábrica de Idéias SBS Quadra 2 - Bloco S - Ed. Empire Center - Sala 1.301 Brasília - DF - CEP 70070-904 Tel. (61) 3321-1357 Fax (61) 3223-1712 ---------------------------------------------------------------------------------------
In reviewing those changes I noticed one howler: they didn't update America/Eirunepe, which also moved from ACT (UTC-5) to AMT (UTC-4) on June 24. Here's a proposed patch that integrates this change, plus some other, less-important changes, some of which I have been saving up for quite some time. Sorry about the delay. By the way, I had trouble with the patch that removed the accent, due to mail-encoding issues (is it UTF-8 or Latin-1? it matters). Possibly you'll have the same problem with my patch enclosed below, too. Given this problem with emailed patches, I'd prefer to avoid non-ASCII characters even in the comments, for a while longer anyway. To try to be a bit safer I'll also attach the proposed patch as a binary file. The enclosed patch is relative to tzdata2008c, and contains the following changes over and above the changes that were in Arthur's patches: Changes affecting current and future time stamps. * America/Eirunepe also changed from ACT (UTC-5) to AMT (UTC-4) on June 24. Changes affecting past time stamps. * For Mauritius, also include the 1982/1983 DST as reported by Steffen Thorsen. * For America/Argentina/San_Luis, redo the history from 1990 through 2000 to match what's in Shanks & Pottenger. The following changes should not affect externally visible behavior. * Redo comments about Brazil to make it clearer about what west Para contains. * Update Brazil comments to mention Decree 6,212 (2007-09-26). * Make comments a bit more concise for Brazil and Mauritius. * Redo comments about Argentina to reflect the fact that San Luis is now separate. * Redo the daylight-saving rules for Berlin in 1945 to make it clearer that these are for the Soviet Zone, not for Berlin in general. * Redo Bahamas rules to make it clearer that the rules after 1975 are the same as the US. * Add comments about time in China from 1949 to 1980. (Thanks to Thomas S. Mullaney for this.) * In tz-link.htm, add mention of daylight-savings-time.info, update links to Vzic, to efele.net map, and to the NPL. =================================================================== RCS file: RCS/africa,v retrieving revision 2008.3 retrieving revision 2008.3.0.1 diff -pu -r2008.3 -r2008.3.0.1 --- africa 2008/05/19 21:48:03 2008.3 +++ africa 2008/07/07 07:35:01 2008.3.0.1 @@ -1,4 +1,4 @@ -# @(#)africa 8.11 +# @(#)africa 8.12 # <pre> # This data is by no means authoritative; if you think you know better, @@ -387,9 +387,33 @@ Zone Africa/Nouakchott -1:03:48 - LMT 19 0:00 - GMT # Mauritius + +# From Steffen Thorsen (2008-06-25): +# Mauritius plans to observe DST from 2008-11-01 to 2009-03-31 on a trial +# basis.... +# It seems that Mauritius observed daylight saving time from 1982-10-10 to +# 1983-03-20 as well, but that was not successful.... +# http://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html +# +# From Alex Krivenyshev (2008-06-25): +# http://economicdevelopment.gov.mu/portal/site/Mainhomepage/menuitem.a42b2412... +# +# From Arthur David Olson (2008-06-30): +# The www.timeanddate.com article cited by Steffen Thorsen notes that "A +# final decision has yet to be made on the times that daylight saving +# would begin and end on these dates." As a place holder, use midnight. +# +# From Paul Eggert (2008-06-30): +# Follow Thorsen on DST in 1982/1983, instead of Shanks & Pottenger. + +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +Rule Mauritius 1982 only - Oct 10 0:00 1:00 S +Rule Mauritius 1983 only - Mar 21 0:00 0 - +Rule Mauritius 2008 only - Nov 1 0:00 1:00 S +Rule Mauritius 2009 only - Apr 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis - 4:00 - MUT # Mauritius Time + 4:00 Mauritius MU%sT # Mauritius Time # Agalega Is, Rodriguez # no information; probably like Indian/Mauritius =================================================================== RCS file: RCS/asia,v retrieving revision 2008.3 retrieving revision 2008.3.0.1 diff -pu -r2008.3 -r2008.3.0.1 --- asia 2008/05/19 21:47:52 2008.3 +++ asia 2008/07/07 07:35:01 2008.3.0.1 @@ -229,6 +229,28 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1: # (could be true), for the moment I am assuming that those two # counties are mistakes in the astro.com data. +# From Paul Eggert (2008-02-11): +# I just now checked Google News for western news sources that talk +# about China's single time zone, and couldn't find anything before 1986 +# talking about China being in one time zone. (That article was: Jim +# Mann, "A clumsy embrace for another western custom: China on daylight +# time--sort of", Los Angeles Times, 1986-05-05. By the way, this +# article confirms the tz database's data claiming that China began +# observing daylight saving time in 1986. +# +# From Thomas S. Mullaney (2008-02-11): +# I think you're combining two subjects that need to treated +# separately: daylight savings (which, you're correct, wasn't +# implemented until the 1980s) and the unified time zone centered near +# Beijing (which was implemented in 1949). Briefly, there was also a +# "Lhasa Time" in Tibet and "Urumqi Time" in Xinjiang. The first was +# ceased, and the second eventually recognized (again, in the 1980s). +# +# From Paul Eggert (2008-06-30): +# There seems to be a good chance China switched to a single time zone in 1949 +# rather than in 1980 as Shanks & Pottenger have it, but we don't have a +# reliable documentary source saying so yet, so for now we still go with +# Shanks & Pottenger. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # Changbai Time ("Long-white Time", Long-white = Heilongjiang area) =================================================================== RCS file: RCS/australasia,v retrieving revision 2007.7 retrieving revision 2007.7.0.1 diff -pu -r2007.7 -r2007.7.0.1 --- australasia 2007/08/20 14:45:10 2007.7 +++ australasia 2008/07/07 07:35:01 2007.7.0.1 @@ -1,4 +1,4 @@ -# @(#)australasia 8.8 +# @(#)australasia 8.9 # <pre> # This file also includes Pacific islands. @@ -1346,7 +1346,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # * Tonga will introduce DST in November # # I was given this link by John Letts: -# <a hef="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm"> +# <a href="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm"> # http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm # </a> # @@ -1356,7 +1356,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # (12 + 1 hour DST). # From Arthur David Olson (1999-09-20): -# According to <a href="http://www.tongaonline.com/news/sept1799.html> +# According to <a href="http://www.tongaonline.com/news/sept1799.html"> # http://www.tongaonline.com/news/sept1799.html # </a>: # "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000 =================================================================== RCS file: RCS/europe,v retrieving revision 2007.11 retrieving revision 2007.11.0.1 diff -pu -r2007.11 -r2007.11.0.1 --- europe 2007/12/31 15:23:09 2007.11 +++ europe 2008/07/07 07:35:01 2007.11.0.1 @@ -1,4 +1,4 @@ -# @(#)europe 8.12 +# @(#)europe 8.13 # <pre> # This data is by no means authoritative; if you think you know better, @@ -457,7 +457,7 @@ Rule EU 1979 1995 - Sep lastSun 1:00u 0 Rule EU 1981 max - Mar lastSun 1:00u 1:00 S Rule EU 1996 max - Oct lastSun 1:00u 0 - # The most recent directive covers the years starting in 2002. See: -# <a href="http://europa.eu.int/eur-lex/en/lif/dat/2000/en_300L0084.html" +# <a href="http://europa.eu.int/eur-lex/en/lif/dat/2000/en_300L0084.html"> # Directive 2000/84/EC of the European Parliament and of the Council # of 19 January 2001 on summer-time arrangements. # </a> @@ -480,9 +480,10 @@ Rule C-Eur 1940 only - Apr 1 2:00s 1:0 Rule C-Eur 1942 only - Nov 2 2:00s 0 - Rule C-Eur 1943 only - Mar 29 2:00s 1:00 S Rule C-Eur 1943 only - Oct 4 2:00s 0 - -Rule C-Eur 1944 only - Apr 3 2:00s 1:00 S +Rule C-Eur 1944 1945 - Apr Mon>=1 2:00s 1:00 S # Whitman gives 1944 Oct 7; go with Shanks & Pottenger. Rule C-Eur 1944 only - Oct 2 2:00s 0 - +Rule C-Eur 1945 only - Sep 16 2:00 0 - Rule C-Eur 1977 1980 - Apr Sun>=1 2:00s 1:00 S Rule C-Eur 1977 only - Sep lastSun 2:00s 0 - Rule C-Eur 1978 only - Oct 1 2:00s 0 - @@ -1099,27 +1100,34 @@ Zone Europe/Paris 0:09:21 - LMT 1891 Mar # From Paul Eggert (2003-03-08): # <a href="http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf"> +# http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee852566230045... +# </a> # says that Bersarin issued an order to use Moscow time on May 20. # However, Moscow did not observe daylight saving in 1945, so # this was equivalent to CEMT (GMT+3), not GMT+4. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Germany 1945 only - Apr 2 2:00s 1:00 S -Rule Germany 1945 only - May 24 2:00 2:00 M # Midsummer -Rule Germany 1945 only - Sep 24 3:00 1:00 S -Rule Germany 1945 only - Nov 18 2:00s 0 - Rule Germany 1946 only - Apr 14 2:00s 1:00 S Rule Germany 1946 only - Oct 7 2:00s 0 - Rule Germany 1947 1949 - Oct Sun>=1 2:00s 0 - -Rule Germany 1947 only - Apr 6 2:00s 1:00 S +# http://www.ptb.de/de/org/4/44/441/salt.htm says the following transition +# occurred at 3:00 MEZ, not the 2:00 MEZ given in Shanks & Pottenger. +# Go with the PTB. +Rule Germany 1947 only - Apr 6 3:00s 1:00 S Rule Germany 1947 only - May 11 2:00s 2:00 M Rule Germany 1947 only - Jun 29 3:00 1:00 S Rule Germany 1948 only - Apr 18 2:00s 1:00 S Rule Germany 1949 only - Apr 10 2:00s 1:00 S + +Rule SovietZone 1945 only - May 24 2:00 2:00 M # Midsummer +Rule SovietZone 1945 only - Sep 24 3:00 1:00 S +Rule SovietZone 1945 only - Nov 18 2:00s 0 - + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Berlin 0:53:28 - LMT 1893 Apr - 1:00 C-Eur CE%sT 1945 Apr 2 2:00 + 1:00 C-Eur CE%sT 1945 May 24 2:00 + 1:00 SovietZone CE%sT 1946 1:00 Germany CE%sT 1980 1:00 EU CE%sT =================================================================== RCS file: RCS/northamerica,v retrieving revision 2008.2 retrieving revision 2008.2.0.1 diff -pu -r2008.2 -r2008.2.0.1 --- northamerica 2008/03/24 12:30:58 2008.2 +++ northamerica 2008/07/07 07:35:01 2008.2.0.1 @@ -2076,8 +2076,8 @@ Zone America/Antigua -4:07:12 - LMT 1912 # http://www.jonesbahamas.com/?c=45&a=10412 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Bahamas 1964 2006 - Oct lastSun 2:00 0 S -Rule Bahamas 1964 1986 - Apr lastSun 2:00 1:00 D +Rule Bahamas 1964 1975 - Oct lastSun 2:00 0 S +Rule Bahamas 1964 1975 - Apr lastSun 2:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Nassau -5:09:24 - LMT 1912 Mar 2 -5:00 Bahamas E%sT 1976 =================================================================== RCS file: RCS/southamerica,v retrieving revision 2008.2 retrieving revision 2008.2.0.1 diff -pu -r2008.2 -r2008.2.0.1 --- southamerica 2008/03/24 12:30:58 2008.2 +++ southamerica 2008/07/07 07:35:01 2008.2.0.1 @@ -1,4 +1,4 @@ -# @(#)southamerica 8.19 +# @(#)southamerica 8.22 # <pre> # This data is by no means authoritative; if you think you know better, @@ -294,14 +294,14 @@ Rule Arg 2008 max - Oct Sun>=1 0:00 1:00 # back in 2004, when these provinces changed to UTC-4 for a few days, I # mailed them personally and never got an answer). -# From Arthur David Olson (2008-03-15): -# Until there's better information, asssume San Luis was like San Juan -# rather than Mendoza (since San Juan has a simpler DST history). - +# 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, but we -# haven't verified this yet so for now we'll keep it a single region. +# 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. + # # Zone NAME GMTOFF RULES FORMAT [UNTIL] # @@ -316,14 +316,12 @@ Zone America/Argentina/Buenos_Aires -3:5 # # Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC), # Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB), -# San Luis (SL), La Pampa (LP), Neuquen (NQ), Rio Negro (RN) +# La Pampa (LP), Neuquen (NQ), Rio Negro (RN) # # 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. -# - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15, -# then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01. # - Santiago del Estero switched to -4:00 on 1991-04-01, # then to -3:00 on 1991-04-26. # @@ -425,10 +423,13 @@ Zone America/Argentina/San_Luis -4:25:24 -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 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 @@ -540,6 +541,22 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # 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=BBA06811AFCAAC28F028521... +# From Paul Schulze (2008-06-24): +# ... by law number 11.662 of April 24, 2008 +# (published in the "Diario Oficial da Uniao" +# https://www.in.gov.br/imprensa/jsp/jsp/jornaiscompletos/visualizacao/pdf/vis...) +# in Brazil there are changes in the timezones, effective today +# (00:00 at June 24, 2008) as follows: +# a) The timezone UTC+5 is estinguished, 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. + # From Paul Eggert (2002-10-10): # The official decrees referenced below are mostly taken from # <a href="http://pcdsh01.on.br/DecHV.html"> @@ -662,13 +679,13 @@ Rule Brazil 2000 only - Feb 27 0:00 0 - 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"></a> +# <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"></a> +# <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"></a> +# <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. @@ -677,9 +694,8 @@ Rule Brazil 2005 only - Oct 16 0:00 1:0 # 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 number not yet known) -# http://www.brasil.gov.br/noticias/ultimas_noticias/horario_verao070920/ -# (2007-09-20) after a heads-up from Steffen Thorsen: +# 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 max - Oct Sun>=8 0:00 1:00 S Rule Brazil 2008 max - Feb Sun>=15 0:00 0 - # The latest ruleset listed above says that the following states observe DST: @@ -687,7 +703,6 @@ Rule Brazil 2008 max - Feb Sun>=15 0:00 # For dates after mid-2008, 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) @@ -713,6 +728,13 @@ 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 @@ -775,8 +797,7 @@ Zone America/Cuiaba -3:44:20 - LMT 1914 -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. +# Rondonia (RO) Zone America/Porto_Velho -4:15:36 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT @@ -803,13 +824,14 @@ Zone America/Eirunepe -4:39:28 - LMT 191 -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 + -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 - + -5:00 - ACT 2008 Jun 24 00:00 + -4:00 - AMT # Chile @@ -856,7 +878,7 @@ Zone America/Rio_Branco -4:31:12 - LMT 1 # http://www.horaoficial.cl/cambio.htm # </a>. -# From José Miguel Garrido (2008-03-05): +# 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"> =================================================================== RCS file: RCS/tz-link.htm,v retrieving revision 2007.11 retrieving revision 2007.11.0.1 diff -pu -r2007.11 -r2007.11.0.1 --- tz-link.htm 2007/12/31 15:23:10 2007.11 +++ tz-link.htm 2008/07/07 07:35:01 2007.11.0.1 @@ -134,6 +134,9 @@ uses a pulldown menu.</li> timezone information for all countries</a> displays tables of DST rules. <li><a href="http://timeanddate.com/worldclock/">The World Clock - Time Zones</a> lets you sort zone names and convert times.</li> +<li><a href="http://daylight-savings-time.info/">Graphical Display of +Time Zones and Daylight Saving Times</a> shows a graph of time +difference versus time for any pair of locations.</li> <li>The <a href="http://worldtimeengine.com/">World Time Engine</a> also contains data about time zone boundaries; it supports queries via place names and shows location maps.</li> @@ -178,7 +181,7 @@ href="http://www.w3.org/2000/01/foo">sch </ul> <h2>Other <code>tz</code> compilers</h2> <ul> -<li><a href="http://dialspace.dial.pipex.com/prod/dialspace/town/pipexdsl/s/asbm26/vzic/">Vzic iCalendar +<li><a href="http://www.dachaplin.dsl.pipex.com/vzic/">Vzic iCalendar Timezone Converter</a> describes a <a href="http://en.wikipedia.org/wiki/C_%28programming_language%29">C</a> program that compiles @@ -353,7 +356,7 @@ but the maps are more up to date.</li> </ul> <h2>Time zone boundaries</h2> <ul> -<li><a href="http://efele.net/maps/">A map of the TZ timezones in +<li><a href="http://efele.net/maps/tz/us/">A map of the TZ timezones in the US</a> contains a <a href="http://en.wikipedia.org/wiki/Shapefile">shapefile</a> of the <code>tz</code> regions in the US.</li> @@ -477,7 +480,7 @@ href="http://www.srcf.ucam.org/~jsm28/br legal time in Britain</a> discusses in detail the country with perhaps the best-documented history of clock adjustments. The National Physical Laboratory also maintains an <a -href="http://www.npl.co.uk/time/measurement_time/summer_time_archive.html">Archive +href="http://www.npl.co.uk/server.php?show=ConWebDoc.2714">Archive of Summer time dates</a>.</dd> </dl> <h2>Precision timekeeping</h2> =================================================================== RCS file: RCS/zone.tab,v retrieving revision 2008.2 retrieving revision 2008.2.0.1 diff -pu -r2008.2 -r2008.2.0.1 --- zone.tab 2008/03/24 12:30:59 2008.2 +++ zone.tab 2008/07/07 07:35:01 2008.2.0.1 @@ -1,4 +1,4 @@ -# @(#)zone.tab 8.16 +# @(#)zone.tab 8.18 # # TZ zone descriptions # @@ -92,7 +92,8 @@ BR -1259-03831 America/Bahia Bahia BR -2332-04637 America/Sao_Paulo S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS) BR -2027-05437 America/Campo_Grande Mato Grosso do Sul BR -1535-05605 America/Cuiaba Mato Grosso -BR -0846-06354 America/Porto_Velho W Para, Rondonia +BR -0226-05452 America/Santarem W Para +BR -0846-06354 America/Porto_Velho Rondonia BR +0249-06040 America/Boa_Vista Roraima BR -0308-06001 America/Manaus E Amazonas BR -0640-06952 America/Eirunepe W Amazonas
On Mon, Jul 7, 2008 at 4:47 AM, Paul Eggert <eggert@cs.ucla.edu> wrote:
+# From Paul Schulze (2008-06-24): +# ... by law number 11.662 of April 24, 2008 +# (published in the "Diario Oficial da Uniao" +# https://www.in.gov.br/imprensa/jsp/jsp/jornaiscompletos/visualizacao/pdf/vis... ) +# in Brazil there are changes in the timezones, effective today +# (00:00 at June 24, 2008) as follows:
Hi, As I mentioned before, I believe the URL < https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=...> should be used instead of < https://www.in.gov.br/imprensa/jsp/jsp/jornaiscompletos/visualizacao/pdf/vis...> because the first one works and the second don't ;) Rodrigo Severo -- --------------------------------------------------------------------------------------- Rodrigo Severo Fábrica de Idéias SBS Quadra 2 - Bloco S - Ed. Empire Center - Sala 1.301 Brasília - DF - CEP 70070-904 Tel. (61) 3321-1357 Fax (61) 3223-1712 ---------------------------------------------------------------------------------------
Did the changes in this e-mail make it into 2008d, or will they have to wait until 2008e? Thanks, Deborah On Jul 7, 2008, at 12:47 AM, Paul Eggert wrote:
In reviewing those changes I noticed one howler: they didn't update America/Eirunepe, which also moved from ACT (UTC-5) to AMT (UTC-4) on June 24.
Here's a proposed patch that integrates this change, plus some other, less-important changes, some of which I have been saving up for quite some time. Sorry about the delay.
By the way, I had trouble with the patch that removed the accent, due to mail-encoding issues (is it UTF-8 or Latin-1? it matters). Possibly you'll have the same problem with my patch enclosed below, too. Given this problem with emailed patches, I'd prefer to avoid non-ASCII characters even in the comments, for a while longer anyway.
To try to be a bit safer I'll also attach the proposed patch as a binary file.
The enclosed patch is relative to tzdata2008c, and contains the following changes over and above the changes that were in Arthur's patches:
Changes affecting current and future time stamps.
* America/Eirunepe also changed from ACT (UTC-5) to AMT (UTC-4) on June 24.
Changes affecting past time stamps.
* For Mauritius, also include the 1982/1983 DST as reported by Steffen Thorsen.
* For America/Argentina/San_Luis, redo the history from 1990 through 2000 to match what's in Shanks & Pottenger.
The following changes should not affect externally visible behavior.
* Redo comments about Brazil to make it clearer about what west Para contains.
* Update Brazil comments to mention Decree 6,212 (2007-09-26).
* Make comments a bit more concise for Brazil and Mauritius.
* Redo comments about Argentina to reflect the fact that San Luis is now separate.
* Redo the daylight-saving rules for Berlin in 1945 to make it clearer that these are for the Soviet Zone, not for Berlin in general.
* Redo Bahamas rules to make it clearer that the rules after 1975 are the same as the US.
* Add comments about time in China from 1949 to 1980. (Thanks to Thomas S. Mullaney for this.)
* In tz-link.htm, add mention of daylight-savings-time.info, update links to Vzic, to efele.net map, and to the NPL.
=================================================================== RCS file: RCS/africa,v retrieving revision 2008.3 retrieving revision 2008.3.0.1 diff -pu -r2008.3 -r2008.3.0.1 --- africa 2008/05/19 21:48:03 2008.3 +++ africa 2008/07/07 07:35:01 2008.3.0.1 @@ -1,4 +1,4 @@ -# @(#)africa 8.11 +# @(#)africa 8.12 # <pre>
# This data is by no means authoritative; if you think you know better, @@ -387,9 +387,33 @@ Zone Africa/Nouakchott -1:03:48 - LMT 19 0:00 - GMT
# Mauritius + +# From Steffen Thorsen (2008-06-25): +# Mauritius plans to observe DST from 2008-11-01 to 2009-03-31 on a trial +# basis.... +# It seems that Mauritius observed daylight saving time from 1982-10-10 to +# 1983-03-20 as well, but that was not successful.... +# http://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html +# +# From Alex Krivenyshev (2008-06-25): +# http://economicdevelopment.gov.mu/portal/site/Mainhomepage/menuitem.a42b2412... +# +# From Arthur David Olson (2008-06-30): +# The www.timeanddate.com article cited by Steffen Thorsen notes that "A +# final decision has yet to be made on the times that daylight saving +# would begin and end on these dates." As a place holder, use midnight. +# +# From Paul Eggert (2008-06-30): +# Follow Thorsen on DST in 1982/1983, instead of Shanks & Pottenger. + +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +Rule Mauritius 1982 only - Oct 10 0:00 1:00 S +Rule Mauritius 1983 only - Mar 21 0:00 0 - +Rule Mauritius 2008 only - Nov 1 0:00 1:00 S +Rule Mauritius 2009 only - Apr 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis - 4:00 - MUT # Mauritius Time + 4:00 Mauritius MU%sT # Mauritius Time # Agalega Is, Rodriguez # no information; probably like Indian/Mauritius
=================================================================== RCS file: RCS/asia,v retrieving revision 2008.3 retrieving revision 2008.3.0.1 diff -pu -r2008.3 -r2008.3.0.1 --- asia 2008/05/19 21:47:52 2008.3 +++ asia 2008/07/07 07:35:01 2008.3.0.1 @@ -229,6 +229,28 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1: # (could be true), for the moment I am assuming that those two # counties are mistakes in the astro.com data.
+# From Paul Eggert (2008-02-11): +# I just now checked Google News for western news sources that talk +# about China's single time zone, and couldn't find anything before 1986 +# talking about China being in one time zone. (That article was: Jim +# Mann, "A clumsy embrace for another western custom: China on daylight +# time--sort of", Los Angeles Times, 1986-05-05. By the way, this +# article confirms the tz database's data claiming that China began +# observing daylight saving time in 1986. +# +# From Thomas S. Mullaney (2008-02-11): +# I think you're combining two subjects that need to treated +# separately: daylight savings (which, you're correct, wasn't +# implemented until the 1980s) and the unified time zone centered near +# Beijing (which was implemented in 1949). Briefly, there was also a +# "Lhasa Time" in Tibet and "Urumqi Time" in Xinjiang. The first was +# ceased, and the second eventually recognized (again, in the 1980s). +# +# From Paul Eggert (2008-06-30): +# There seems to be a good chance China switched to a single time zone in 1949 +# rather than in 1980 as Shanks & Pottenger have it, but we don't have a +# reliable documentary source saying so yet, so for now we still go with +# Shanks & Pottenger.
# Zone NAME GMTOFF RULES FORMAT [UNTIL] # Changbai Time ("Long-white Time", Long-white = Heilongjiang area) =================================================================== RCS file: RCS/australasia,v retrieving revision 2007.7 retrieving revision 2007.7.0.1 diff -pu -r2007.7 -r2007.7.0.1 --- australasia 2007/08/20 14:45:10 2007.7 +++ australasia 2008/07/07 07:35:01 2007.7.0.1 @@ -1,4 +1,4 @@ -# @(#)australasia 8.8 +# @(#)australasia 8.9 # <pre>
# This file also includes Pacific islands. @@ -1346,7 +1346,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # * Tonga will introduce DST in November # # I was given this link by John Letts: -# <a hef="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm "> +# <a href="http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm "> # http://news.bbc.co.uk/hi/english/world/asia-pacific/newsid_424000/424764.stm # </a> # @@ -1356,7 +1356,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901 # (12 + 1 hour DST).
# From Arthur David Olson (1999-09-20): -# According to <a href="http://www.tongaonline.com/news/ sept1799.html> +# According to <a href="http://www.tongaonline.com/news/ sept1799.html"> # http://www.tongaonline.com/news/sept1799.html # </a>: # "Daylight Savings Time will take effect on Oct. 2 through April 15, 2000 =================================================================== RCS file: RCS/europe,v retrieving revision 2007.11 retrieving revision 2007.11.0.1 diff -pu -r2007.11 -r2007.11.0.1 --- europe 2007/12/31 15:23:09 2007.11 +++ europe 2008/07/07 07:35:01 2007.11.0.1 @@ -1,4 +1,4 @@ -# @(#)europe 8.12 +# @(#)europe 8.13 # <pre>
# This data is by no means authoritative; if you think you know better, @@ -457,7 +457,7 @@ Rule EU 1979 1995 - Sep lastSun 1:00u 0 Rule EU 1981 max - Mar lastSun 1:00u 1:00 S Rule EU 1996 max - Oct lastSun 1:00u 0 - # The most recent directive covers the years starting in 2002. See: -# <a href="http://europa.eu.int/eur-lex/en/lif/dat/2000/en_300L0084.html " +# <a href="http://europa.eu.int/eur-lex/en/lif/dat/2000/en_300L0084.html "> # Directive 2000/84/EC of the European Parliament and of the Council # of 19 January 2001 on summer-time arrangements. # </a> @@ -480,9 +480,10 @@ Rule C-Eur 1940 only - Apr 1 2:00s 1:0 Rule C-Eur 1942 only - Nov 2 2:00s 0 - Rule C-Eur 1943 only - Mar 29 2:00s 1:00 S Rule C-Eur 1943 only - Oct 4 2:00s 0 - -Rule C-Eur 1944 only - Apr 3 2:00s 1:00 S +Rule C-Eur 1944 1945 - Apr Mon>=1 2:00s 1:00 S # Whitman gives 1944 Oct 7; go with Shanks & Pottenger. Rule C-Eur 1944 only - Oct 2 2:00s 0 - +Rule C-Eur 1945 only - Sep 16 2:00 0 - Rule C-Eur 1977 1980 - Apr Sun>=1 2:00s 1:00 S Rule C-Eur 1977 only - Sep lastSun 2:00s 0 - Rule C-Eur 1978 only - Oct 1 2:00s 0 - @@ -1099,27 +1100,34 @@ Zone Europe/Paris 0:09:21 - LMT 1891 Mar
# From Paul Eggert (2003-03-08): # <a href="http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee852566230045... "> +# http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee852566230045... +# </a> # says that Bersarin issued an order to use Moscow time on May 20. # However, Moscow did not observe daylight saving in 1945, so # this was equivalent to CEMT (GMT+3), not GMT+4.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Germany 1945 only - Apr 2 2:00s 1:00 S -Rule Germany 1945 only - May 24 2:00 2:00 M # Midsummer -Rule Germany 1945 only - Sep 24 3:00 1:00 S -Rule Germany 1945 only - Nov 18 2:00s 0 - Rule Germany 1946 only - Apr 14 2:00s 1:00 S Rule Germany 1946 only - Oct 7 2:00s 0 - Rule Germany 1947 1949 - Oct Sun>=1 2:00s 0 - -Rule Germany 1947 only - Apr 6 2:00s 1:00 S +# http://www.ptb.de/de/org/4/44/441/salt.htm says the following transition +# occurred at 3:00 MEZ, not the 2:00 MEZ given in Shanks & Pottenger. +# Go with the PTB. +Rule Germany 1947 only - Apr 6 3:00s 1:00 S Rule Germany 1947 only - May 11 2:00s 2:00 M Rule Germany 1947 only - Jun 29 3:00 1:00 S Rule Germany 1948 only - Apr 18 2:00s 1:00 S Rule Germany 1949 only - Apr 10 2:00s 1:00 S + +Rule SovietZone 1945 only - May 24 2:00 2:00 M # Midsummer +Rule SovietZone 1945 only - Sep 24 3:00 1:00 S +Rule SovietZone 1945 only - Nov 18 2:00s 0 - + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Berlin 0:53:28 - LMT 1893 Apr - 1:00 C-Eur CE%sT 1945 Apr 2 2:00 + 1:00 C-Eur CE%sT 1945 May 24 2:00 + 1:00 SovietZone CE%sT 1946 1:00 Germany CE%sT 1980 1:00 EU CE%sT
=================================================================== RCS file: RCS/northamerica,v retrieving revision 2008.2 retrieving revision 2008.2.0.1 diff -pu -r2008.2 -r2008.2.0.1 --- northamerica 2008/03/24 12:30:58 2008.2 +++ northamerica 2008/07/07 07:35:01 2008.2.0.1 @@ -2076,8 +2076,8 @@ Zone America/Antigua -4:07:12 - LMT 1912 # http://www.jonesbahamas.com/?c=45&a=10412
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S -Rule Bahamas 1964 2006 - Oct lastSun 2:00 0 S -Rule Bahamas 1964 1986 - Apr lastSun 2:00 1:00 D +Rule Bahamas 1964 1975 - Oct lastSun 2:00 0 S +Rule Bahamas 1964 1975 - Apr lastSun 2:00 1:00 D # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Nassau -5:09:24 - LMT 1912 Mar 2 -5:00 Bahamas E%sT 1976 =================================================================== RCS file: RCS/southamerica,v retrieving revision 2008.2 retrieving revision 2008.2.0.1 diff -pu -r2008.2 -r2008.2.0.1 --- southamerica 2008/03/24 12:30:58 2008.2 +++ southamerica 2008/07/07 07:35:01 2008.2.0.1 @@ -1,4 +1,4 @@ -# @(#)southamerica 8.19 +# @(#)southamerica 8.22 # <pre>
# This data is by no means authoritative; if you think you know better, @@ -294,14 +294,14 @@ Rule Arg 2008 max - Oct Sun>=1 0:00 1:00 # back in 2004, when these provinces changed to UTC-4 for a few days, I # mailed them personally and never got an answer).
-# From Arthur David Olson (2008-03-15): -# Until there's better information, asssume San Luis was like San Juan -# rather than Mendoza (since San Juan has a simpler DST history). - +# 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, but we -# haven't verified this yet so for now we'll keep it a single region. +# 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. + # # Zone NAME GMTOFF RULES FORMAT [UNTIL] # @@ -316,14 +316,12 @@ Zone America/Argentina/Buenos_Aires -3:5 # # Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC), # Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB), -# San Luis (SL), La Pampa (LP), Neuquen (NQ), Rio Negro (RN) +# La Pampa (LP), Neuquen (NQ), Rio Negro (RN) # # 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. -# - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15, -# then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01. # - Santiago del Estero switched to -4:00 on 1991-04-01, # then to -3:00 on 1991-04-26. # @@ -425,10 +423,13 @@ Zone America/Argentina/San_Luis -4:25:24 -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 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 @@ -540,6 +541,22 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # 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=BBA06811AFCAAC28F028521...
+# From Paul Schulze (2008-06-24): +# ... by law number 11.662 of April 24, 2008 +# (published in the "Diario Oficial da Uniao" +# https://www.in.gov.br/imprensa/jsp/jsp/jornaiscompletos/visualizacao/pdf/vis...) +# in Brazil there are changes in the timezones, effective today +# (00:00 at June 24, 2008) as follows: +# a) The timezone UTC+5 is estinguished, 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. + # From Paul Eggert (2002-10-10): # The official decrees referenced below are mostly taken from # <a href="http://pcdsh01.on.br/DecHV.html"> @@ -662,13 +679,13 @@ Rule Brazil 2000 only - Feb 27 0:00 0 - 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 "></a> +# <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 "></a> +# <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 "></a> +# <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. @@ -677,9 +694,8 @@ Rule Brazil 2005 only - Oct 16 0:00 1:0 # 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 number not yet known) -# http://www.brasil.gov.br/noticias/ultimas_noticias/horario_verao070920/ -# (2007-09-20) after a heads-up from Steffen Thorsen: +# 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 max - Oct Sun>=8 0:00 1:00 S Rule Brazil 2008 max - Feb Sun>=15 0:00 0 - # The latest ruleset listed above says that the following states observe DST: @@ -687,7 +703,6 @@ Rule Brazil 2008 max - Feb Sun>=15 0:00 # For dates after mid-2008, 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) @@ -713,6 +728,13 @@ 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 @@ -775,8 +797,7 @@ Zone America/Cuiaba -3:44:20 - LMT 1914 -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. +# Rondonia (RO) Zone America/Porto_Velho -4:15:36 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT @@ -803,13 +824,14 @@ Zone America/Eirunepe -4:39:28 - LMT 191 -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 + -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 - + -5:00 - ACT 2008 Jun 24 00:00 + -4:00 - AMT
# Chile
@@ -856,7 +878,7 @@ Zone America/Rio_Branco -4:31:12 - LMT 1 # http://www.horaoficial.cl/cambio.htm # </a>.
-# From José Miguel Garrido (2008-03-05): +# 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"> =================================================================== RCS file: RCS/tz-link.htm,v retrieving revision 2007.11 retrieving revision 2007.11.0.1 diff -pu -r2007.11 -r2007.11.0.1 --- tz-link.htm 2007/12/31 15:23:10 2007.11 +++ tz-link.htm 2008/07/07 07:35:01 2007.11.0.1 @@ -134,6 +134,9 @@ uses a pulldown menu.</li> timezone information for all countries</a> displays tables of DST rules. <li><a href="http://timeanddate.com/worldclock/">The World Clock - Time Zones</a> lets you sort zone names and convert times.</li> +<li><a href="http://daylight-savings-time.info/">Graphical Display of +Time Zones and Daylight Saving Times</a> shows a graph of time +difference versus time for any pair of locations.</li> <li>The <a href="http://worldtimeengine.com/">World Time Engine</a> also contains data about time zone boundaries; it supports queries via place names and shows location maps.</li> @@ -178,7 +181,7 @@ href="http://www.w3.org/2000/01/foo">sch </ul> <h2>Other <code>tz</code> compilers</h2> <ul> -<li><a href="http://dialspace.dial.pipex.com/prod/dialspace/town/pipexdsl/s/asbm26/vzic/ ">Vzic iCalendar +<li><a href="http://www.dachaplin.dsl.pipex.com/vzic/">Vzic iCalendar Timezone Converter</a> describes a <a href="http://en.wikipedia.org/wiki/C_%28programming_language%29">C</a> program that compiles @@ -353,7 +356,7 @@ but the maps are more up to date.</li> </ul> <h2>Time zone boundaries</h2> <ul> -<li><a href="http://efele.net/maps/">A map of the TZ timezones in +<li><a href="http://efele.net/maps/tz/us/">A map of the TZ timezones in the US</a> contains a <a href="http://en.wikipedia.org/wiki/Shapefile">shapefile</a> of the <code>tz</code> regions in the US.</li> @@ -477,7 +480,7 @@ href="http://www.srcf.ucam.org/~jsm28/br legal time in Britain</a> discusses in detail the country with perhaps the best-documented history of clock adjustments. The National Physical Laboratory also maintains an <a -href="http://www.npl.co.uk/time/measurement_time/summer_time_archive.html ">Archive +href="http://www.npl.co.uk/server.php?show=ConWebDoc.2714">Archive of Summer time dates</a>.</dd> </dl> <h2>Precision timekeeping</h2> =================================================================== RCS file: RCS/zone.tab,v retrieving revision 2008.2 retrieving revision 2008.2.0.1 diff -pu -r2008.2 -r2008.2.0.1 --- zone.tab 2008/03/24 12:30:59 2008.2 +++ zone.tab 2008/07/07 07:35:01 2008.2.0.1 @@ -1,4 +1,4 @@ -# @(#)zone.tab 8.16 +# @(#)zone.tab 8.18 # # TZ zone descriptions # @@ -92,7 +92,8 @@ BR -1259-03831 America/Bahia Bahia BR -2332-04637 America/Sao_Paulo S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS) BR -2027-05437 America/Campo_Grande Mato Grosso do Sul BR -1535-05605 America/Cuiaba Mato Grosso -BR -0846-06354 America/Porto_Velho W Para, Rondonia +BR -0226-05452 America/Santarem W Para +BR -0846-06354 America/Porto_Velho Rondonia BR +0249-06040 America/Boa_Vista Roraima BR -0308-06001 America/Manaus E Amazonas BR -0640-06952 America/Eirunepe W Amazonas
<tz-diff>
participants (4)
-
Arthur David Olson -
Deborah Goldsmith -
Paul Eggert -
Rodrigo Severo