January 2010 - tz - lists.iana.org

tz isdst
by gor Jan. 20, 2010

Jan. 20, 2010

I am asking for a way to give zdump a timezone, date and hour, so zdump (or other command) can give me the "isdst". Another way could be to give time zone (or Country and city), date and hour and get the UTC and "isdst". Should it be possible? Thanks in advance.

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FW: tz isdst
by Olson, Arthur David (NIH/NCI) [E] Jan. 19, 2010

Jan. 19, 2010

I'm forwarding this message from a person who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. --ado -----Original Message----- From: sagrav(a)racsa.co.cr [mailto:sagrav@racsa.co.cr] Sent: Monday, January 18, 2010 8:34 To: tz(a)lecserver.nci.nih.gov Subject: tz isdst I am asking for a way to give zdump a timezone, date and hour, so zdump (or other command) can give me the "isdst". Another way could be to give time zone (or Country and city), date and hour and get the UTC and "isdst". Shoul it be possible? Thanks in advance.

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tz isdst
by gor Jan. 19, 2010

Jan. 19, 2010

I am asking for a way to give zdump a timezone, date and hour, so zdump (or other command) can give me the "isdst". Another way could be to give time zone (or Country and city), date and hour and get the UTC and "isdst". Shoul it be possible? Thanks in advance.

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tzdata2010a.tar.gz
by Arthur David Olson Jan. 18, 2010

Jan. 18, 2010

The file... ftp://elsie.nci.nih.gov/pub/tzdata2010a.tar.gz ...is now available; this reflects only the changes to Dhaka circulated recently on the time zone mailing list. I'm still trying to determine just what northern-Mexico areas are to observe US DST starging in 2010, and there's at least Mauritius work to do; expect tzdata2010b.tar.gz in a week or two. --ado

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proposed time zone package changes for Dhaka and Mexico
by Arthur David Olson Jan. 13, 2010

Jan. 13, 2010

Below find proposed changes to the time zone package. The executive summary: asia Revert 2009 start of DST in Dhaka to correct date. Make Dhaka "AT" fields consistent with others. backward Remove Tijuana/Ensenada link northamerica Split off Mexican cities (near US border) that are to follow US rules starting in 2010. Tijuana splits into Tijuana and Ensenada. Chihuahua splits into Chihuahua and Ojinaga. Monterrey splits into Monterrey and Matamoros. (And...a cosmetic change to Mexico_City while we're in the neighborhood.) zone.tab Change Mexico entries to reflect border city changes. Other Mexican border cities are switching to US rules; both "northamerica" and "zone.tab" list the cities. If these pass muster they'll appear in the ftp "data" bundle on 2010-01-18 --ado diff -r -c old/asia new/asia *** old/asia Sat Dec 26 08:32:28 2009 --- new/asia Wed Jan 6 10:21:32 2010 *************** *** 1,4 **** ! # @(#)asia 8.50 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,4 ---- ! # @(#)asia 8.51 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 226,235 **** # establishment of a rule. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule Dhaka 2009 only - Jun 29 23:00 1 S ! Rule Dhaka 2010 only - Jan 1 0:00 - - ! Rule Dhaka 2010 max - Mar 31 23:00 1 S ! Rule Dhaka 2010 max - Nov 1 0:00 - - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dhaka 6:01:40 - LMT 1890 --- 226,235 ---- # establishment of a rule. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule Dhaka 2009 only - Jun 19 23:00 1:00 S ! Rule Dhaka 2010 only - Jan 1 0:00 0 - ! Rule Dhaka 2010 max - Mar 31 23:00 1:00 S ! Rule Dhaka 2010 max - Nov 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dhaka 6:01:40 - LMT 1890 diff -r -c old/backward new/backward *** old/backward Wed Oct 21 09:12:44 2009 --- new/backward Wed Jan 6 10:21:32 2010 *************** *** 1,5 **** # <pre> ! # @(#)backward 8.8 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)backward 8.9 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 14,20 **** Link America/Argentina/Catamarca America/Catamarca Link America/Atikokan America/Coral_Harbour Link America/Argentina/Cordoba America/Cordoba - Link America/Tijuana America/Ensenada Link America/Indiana/Indianapolis America/Fort_Wayne Link America/Indiana/Indianapolis America/Indianapolis Link America/Argentina/Jujuy America/Jujuy --- 14,19 ---- diff -r -c old/northamerica new/northamerica *** old/northamerica Wed Oct 21 09:12:43 2009 --- new/northamerica Wed Jan 6 10:21:33 2010 *************** *** 1,5 **** # <pre> ! # @(#)northamerica 8.28 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)northamerica 8.29 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 1955,1960 **** --- 1955,2003 ---- # http://www.conae.gob.mx/ahorro/horaver2001_m1_2002.html (2002-02-20) # confirms this. Sonora as usual is the only state where DST is not applied. + # From Steffen Thorsen (2009-12-28): + # + # Steffen Thorsen wrote: + # > Mexico's House of Representatives has approved a proposal for northern + # > Mexico's border cities to share the same daylight saving schedule as + # > the United States. + # Now this has passed both the Congress and the Senate, so starting from + # 2010, some border regions will be the same: + # <a href="http://www.signonsandiego.com/news/2009/dec/28/clocks-will-match-both-sides…"> + # http://www.signonsandiego.com/news/2009/dec/28/clocks-will-match-both-sides… + # </a> + # <a href="http://www.elmananarey.com/diario/noticia/nacional/noticias/empatan_horario…"> + # http://www.elmananarey.com/diario/noticia/nacional/noticias/empatan_horario… + # </a> + # (Spanish) + # + # Could not find the new law text, but the proposed law text changes are here: + # <a href="http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/20091210-V.pdf"> + # http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/20091210-V.pdf + # </a> + # (Gaceta Parlamentaria) + # + # There is also a list of the votes here: + # <a href="http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html"> + # http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html + # </a> + # + # Our page: + # <a href="http://www.timeanddate.com/news/time/north-mexico-dst-change.html"> + # http://www.timeanddate.com/news/time/north-mexico-dst-change.html + # </a> + + # From Arthur David Olson (2010-01-06): + # An excerpt from 20091210-V.pdf: + # Excepto los municipios fronterizos de Tijuana y Mexicali en Baja California; + # Ciudad Juárez y Ojinaga en Chihuahua; + # Ciudad Acuña, Piedras Negras en Coahuila; + # Ciudad Anáhuac en Nuevo León; + # y Nuevo Laredo, Reynosa y Matamoros en Tamaulipas, + # en los municipios mencionados esta aplicación surtirá + # efecto desde las dos horas del segundo domingo de marzo + # y concluirá a las dos horas del primer domingo de noviembre. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mexico 1939 only - Feb 5 0:00 1:00 D Rule Mexico 1939 only - Jun 25 0:00 0 S *************** *** 1981,1993 **** -6:00 - CST 1981 Dec 23 -5:00 - EST 1982 Dec 2 -6:00 Mexico C%sT ! # Coahuila, Durango, Nuevo Leon, Tamaulipas Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44 -6:00 - CST 1988 -6:00 US C%sT 1989 -6:00 Mexico C%sT # Central Mexico ! Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24 -7:00 - MST 1927 Jun 10 23:00 -6:00 - CST 1930 Nov 15 -7:00 - MST 1931 May 1 23:00 --- 2024,2042 ---- -6:00 - CST 1981 Dec 23 -5:00 - EST 1982 Dec 2 -6:00 Mexico C%sT ! # Coahuila, Durango, Nuevo Leon, Tamaulipas (Ciudad Acuna, Ciudad Anahuac, Matamoros, Nuevo Laredo, Piedras Negras, Reynosa) ! Zone America/Matamoros -6:40:00 - LMT 1921 Dec 31 23:20:00 ! -6:00 - CST 1988 ! -6:00 US C%sT 1989 ! -6:00 Mexico C%sT 2010 ! -6:00 US C%sT ! # Coahuila, Durango, Nuevo Leon, Tamaulipas (except Ciudad Acuna, Ciudad Anahuac, Matamoros, Nuevo Laredo, Piedras Negras, Reynosa) Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44 -6:00 - CST 1988 -6:00 US C%sT 1989 -6:00 Mexico C%sT # Central Mexico ! Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24 -7:00 - MST 1927 Jun 10 23:00 -6:00 - CST 1930 Nov 15 -7:00 - MST 1931 May 1 23:00 *************** *** 1996,2003 **** -6:00 Mexico C%sT 2001 Sep 30 02:00 -6:00 - CST 2002 Feb 20 -6:00 Mexico C%sT ! # Chihuahua ! Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40 -7:00 - MST 1927 Jun 10 23:00 -6:00 - CST 1930 Nov 15 -7:00 - MST 1931 May 1 23:00 --- 2045,2052 ---- -6:00 Mexico C%sT 2001 Sep 30 02:00 -6:00 - CST 2002 Feb 20 -6:00 Mexico C%sT ! # Chihuahua (Ojinaga) ! Zone America/Ojinaga -6:57:40 - LMT 1922 Jan 1 0:02:20 -7:00 - MST 1927 Jun 10 23:00 -6:00 - CST 1930 Nov 15 -7:00 - MST 1931 May 1 23:00 *************** *** 2006,2011 **** --- 2055,2072 ---- -6:00 - CST 1996 -6:00 Mexico C%sT 1998 -6:00 - CST 1998 Apr Sun>=1 3:00 + -7:00 Mexico M%sT 2010 + -7:00 US M%sT + # Chihuahua (except Ojinaga) + Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40 # XXX + -7:00 - MST 1927 Jun 10 23:00 + -6:00 - CST 1930 Nov 15 + -7:00 - MST 1931 May 1 23:00 + -6:00 - CST 1931 Oct + -7:00 - MST 1932 Apr 1 + -6:00 - CST 1996 + -6:00 Mexico C%sT 1998 + -6:00 - CST 1998 Apr Sun>=1 3:00 -7:00 Mexico M%sT # Sonora Zone America/Hermosillo -7:23:52 - LMT 1921 Dec 31 23:36:08 *************** *** 2030,2039 **** -7:00 - MST 1949 Jan 14 -8:00 - PST 1970 -7:00 Mexico M%sT ! # Baja California Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56 -7:00 - MST 1924 -8:00 - PST 1927 Jun 10 23:00 -7:00 - MST 1930 Nov 15 -8:00 - PST 1931 Apr 1 -8:00 1:00 PDT 1931 Sep 30 --- 2091,2120 ---- -7:00 - MST 1949 Jan 14 -8:00 - PST 1970 -7:00 Mexico M%sT ! # Baja California (Mexicali and Tijuana) Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56 -7:00 - MST 1924 -8:00 - PST 1927 Jun 10 23:00 + -7:00 - MST 1930 Nov 15 + -8:00 - PST 1931 Apr 1 + -8:00 1:00 PDT 1931 Sep 30 + -8:00 - PST 1942 Apr 24 + -8:00 1:00 PWT 1945 Aug 14 23:00u + -8:00 1:00 PPT 1945 Nov 12 # Peace + -8:00 - PST 1948 Apr 5 + -8:00 1:00 PDT 1949 Jan 14 + -8:00 - PST 1954 + -8:00 CA P%sT 1961 + -8:00 - PST 1976 + -8:00 US P%sT 1996 + -8:00 Mexico P%sT 2001 + -8:00 US P%sT 2002 Feb 20 + -8:00 Mexico P%sT 2010 + -8:00 US P%sT + # Baja California (except Mexicali and Tijuana) + Zone America/Ensenada -7:46:28 - LMT 1922 Jan 1 0:13:32 + -7:00 - MST 1924 + -8:00 - PST 1927 Jun 10 23:00 -7:00 - MST 1930 Nov 15 -8:00 - PST 1931 Apr 1 -8:00 1:00 PDT 1931 Sep 30 diff -r -c old/zone.tab new/zone.tab *** old/zone.tab Sat Dec 12 09:57:09 2009 --- new/zone.tab Wed Jan 6 10:52:24 2010 *************** *** 1,5 **** # <pre> ! # @(#)zone.tab 8.31 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # --- 1,5 ---- # <pre> ! # @(#)zone.tab 8.32 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # *************** *** 279,289 **** MX +1924-09909 America/Mexico_City Central Time - most locations MX +2105-08646 America/Cancun Central Time - Quintana Roo MX +2058-08937 America/Merida Central Time - Campeche, Yucatan ! MX +2540-10019 America/Monterrey Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas MX +2313-10625 America/Mazatlan Mountain Time - S Baja, Nayarit, Sinaloa ! MX +2838-10605 America/Chihuahua Mountain Time - Chihuahua MX +2904-11058 America/Hermosillo Mountain Standard Time - Sonora ! MX +3232-11701 America/Tijuana Pacific Time MY +0310+10142 Asia/Kuala_Lumpur peninsular Malaysia MY +0133+11020 Asia/Kuching Sabah & Sarawak MZ -2558+03235 Africa/Maputo --- 279,292 ---- MX +1924-09909 America/Mexico_City Central Time - most locations MX +2105-08646 America/Cancun Central Time - Quintana Roo MX +2058-08937 America/Merida Central Time - Campeche, Yucatan ! MX +2540-10019 America/Monterrey Mexican Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas except Ciudad Acuna, Ciudad Anahuac, Matamoros, Nuevo Laredo, Piedras Negras, Reynosa ! MX +2550-09730 America/Matamoros US Central Time - Ciudad Acuna, Ciudad Anahuac, Matamoros, Nuevo Laredo, Piedras Negras, Reynosa MX +2313-10625 America/Mazatlan Mountain Time - S Baja, Nayarit, Sinaloa ! MX +2838-10605 America/Chihuahua Mexican Mountain Time - Chihuahua except Ojinaga ! MX +2934-10425 America/Ojinaga US Mountain Time - Ojinaga MX +2904-11058 America/Hermosillo Mountain Standard Time - Sonora ! MX +3232-11701 America/Tijuana US Pacific Time - Mexicali, Tijuana ! MX +3150-11637 America/Ensenada Mexican Pacific Time - Baja California except Mexicali, Tijuana MY +0310+10142 Asia/Kuala_Lumpur peninsular Malaysia MY +0133+11020 Asia/Kuching Sabah & Sarawak MZ -2558+03235 Africa/Maputo

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little nuance in brazil 1963
by Guilherme Rodrigues Jan. 6, 2010

Jan. 6, 2010

Hi, I notice a little nuance that would be nice be corrected, between 1963-10-23 and 1963-12-9 in brazil only Minas Gerais , Espirito Santo, Rio de Janeiro and Sao Paulo had sumer time. this can be verified in the links. http://pcdsh01.on.br/DecHV.html http://pcdsh01.on.br/HV52700.htm http://pcdsh01.on.br/HV53071.htm I propose separate Zone America/Sao_Paulo in one more zone America/Brasilia, the configuration would be like: # 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 1963 Oct 23 00:00 -3:00 1:00 BRST 1964 -3:00 Brazil BR%sT # Goias (GO), Distrito Federal (DF), Parana (PR), # Santa Catarina (SC), Rio Grande do Sul (RS) Zone America/Brasilia -3:06:28 - LMT 1914 -3:00 Brazil BR%sT 1963 Dec 9 00:00 -3:00 1:00 BRST 1964 -3:00 Brazil BR%sT Ps.:Sorry my poor english

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Some areas in Mexico may extend the DST period
by Steffen Thorsen Jan. 5, 2010

Jan. 5, 2010

Mexico's House of Representatives has approved a proposal for northern Mexico's border cities to share the same daylight saving schedule as the United States. Two sources in Spanish: http://www.notisistema.com/noticias/?p=228616 http://www.elfinanciero.com.mx/ElFinanciero/Portal/cfpages/contentmgr.cfm?d… Our page: http://www.timeanddate.com/news/time/north-mexico-dst-change.html Best regards, Steffen Thorsen - timeanddate.com

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