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30 Rock
by Arthur David Olson Feb. 12, 2010

Feb. 12, 2010

In the "30 Rock" episode "Anna Howard Shaw Day" (first broadcast 2010-02-11), Jack Donaghy's date realizes that a Geneva-to-New-York business phone call received in the evening must be fake given the difference in local times. (Expect the above in the next version of tz-art.htm.) --ado

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Re: proposed time zone package changes (revised)
by Arthur David Olson Feb. 7, 2010

Feb. 7, 2010

Here are the proposed changes, revised to incorporate KRE's suggestion on how to handle NULLs passed to asctime_r. --ado ------- asctime.c ------- *** /tmp/geta27327 Sat Feb 6 14:46:35 2010 --- /tmp/getb27327 Sat Feb 6 14:46:35 2010 *************** *** 11,17 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)asctime.c 8.2"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 11,17 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)asctime.c 8.4"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 91,96 **** --- 91,101 ---- char year[INT_STRLEN_MAXIMUM(int) + 2]; char result[MAX_ASCTIME_BUF_SIZE]; + if (timeptr == NULL) { + errno = EINVAL; + (void) strcpy(buf, "??? ??? ?? ??:??:?? ????\n"); + return buf; + } if (timeptr->tm_wday < 0 || timeptr->tm_wday >= DAYSPERWEEK) wn = "???"; else wn = wday_name[timeptr->tm_wday]; ------- localtime.c ------- *** /tmp/geta27345 Sat Feb 6 14:46:35 2010 --- /tmp/getb27345 Sat Feb 6 14:46:35 2010 *************** *** 5,11 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 8.9"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 5,11 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)localtime.c 8.10"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 1889,1894 **** --- 1889,1898 ---- int types[TZ_MAX_TYPES]; int okay; + if (tmp == NULL) { + errno = EINVAL; + return WRONG; + } if (tmp->tm_isdst > 1) tmp->tm_isdst = 1; t = time2(tmp, funcp, offset, &okay); *************** *** 1960,1966 **** timelocal(tmp) struct tm * const tmp; { ! tmp->tm_isdst = -1; /* in case it wasn't initialized */ return mktime(tmp); } --- 1964,1971 ---- timelocal(tmp) struct tm * const tmp; { ! if (tmp != NULL) ! tmp->tm_isdst = -1; /* in case it wasn't initialized */ return mktime(tmp); } *************** *** 1968,1974 **** timegm(tmp) struct tm * const tmp; { ! tmp->tm_isdst = 0; return time1(tmp, gmtsub, 0L); } --- 1973,1980 ---- timegm(tmp) struct tm * const tmp; { ! if (tmp != NULL) ! tmp->tm_isdst = 0; return time1(tmp, gmtsub, 0L); } *************** *** 1977,1983 **** struct tm * const tmp; const long offset; { ! tmp->tm_isdst = 0; return time1(tmp, gmtsub, offset); } --- 1983,1990 ---- struct tm * const tmp; const long offset; { ! if (tmp != NULL) ! tmp->tm_isdst = 0; return time1(tmp, gmtsub, offset); }

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Re: proposed time zone package changes (revised)
by Arthur David Olson Feb. 6, 2010

Feb. 6, 2010

> You could avoid the casing: > return strcpy(buf, "??? ??? ?? ??:??:?? ????\n"); The cast can also be avoided in another part of the asctime.c code; the latest is below. --ado ------- asctime.c ------- *** /tmp/geta27586 Sat Feb 6 15:08:55 2010 --- /tmp/getb27586 Sat Feb 6 15:08:55 2010 *************** *** 11,17 **** #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)asctime.c 8.2"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 11,17 ---- #ifndef lint #ifndef NOID ! static char elsieid[] = "@(#)asctime.c 8.5"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 91,96 **** --- 91,100 ---- char year[INT_STRLEN_MAXIMUM(int) + 2]; char result[MAX_ASCTIME_BUF_SIZE]; + if (timeptr == NULL) { + errno = EINVAL; + return strcpy(buf, "??? ??? ?? ??:??:?? ????\n"); + } if (timeptr->tm_wday < 0 || timeptr->tm_wday >= DAYSPERWEEK) wn = "???"; else wn = wday_name[timeptr->tm_wday]; *************** *** 113,122 **** timeptr->tm_mday, timeptr->tm_hour, timeptr->tm_min, timeptr->tm_sec, year); ! if (strlen(result) < STD_ASCTIME_BUF_SIZE || buf == buf_asctime) { ! (void) strcpy(buf, result); ! return buf; ! } else { #ifdef EOVERFLOW errno = EOVERFLOW; #else /* !defined EOVERFLOW */ --- 117,125 ---- timeptr->tm_mday, timeptr->tm_hour, timeptr->tm_min, timeptr->tm_sec, year); ! if (strlen(result) < STD_ASCTIME_BUF_SIZE || buf == buf_asctime) ! return strcpy(buf, result); ! else { #ifdef EOVERFLOW errno = EOVERFLOW; #else /* !defined EOVERFLOW */

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Russia may set clocks back one hour instead of going into DST
by Steffen Thorsen Feb. 3, 2010

Feb. 3, 2010

According to this article in Pravda, Russia might stop observing DST, and instead go back one hour in March to the time zones they were at until year 1930. http://english.pravda.ru/society/stories/03-02-2010/111995-time_zone-0 Best regards, Steffen Thorsen - timeanddate.com

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FW: problem with java tz database
by Olson, Arthur David (NIH/NCI) [E] Jan. 25, 2010

Jan. 25, 2010

I'm (very belatedly, for which I apologize) forwarding this message from Mamun Shaheed, who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. --ado From: Mamun Shaheed [mailto:mamun.shaheed@gmail.com] Sent: Thursday, December 31, 2009 1:13 To: tz(a)lecserver.nci.nih.gov Subject: problem with java tz database Dear all, I was trying to modify the tzdatabase ($JRE_HOME/lib/zi/*) for JRE, but could not make it sucess. Here is what I have done so far... 1. Downloaded the code and latest tzdata from ftp://elsie.nci.nih.gov/pub/. 2. Modified the asia file and insert my rule there. 3. compile the file with zic. 4. copy the compiled file and put in in $JRE_HOME/lib/zi/Asia/ of my windows pcs 5. run the DSTTest file available in sun.com to check the time zone and got following error C:\Program Files\Java\jre1.5.0_06\bin>java DSTTest "12/30/2009 1:00 AM" ZoneInfo: wrong magic number: Asia/Dhaka ZoneInfo: wrong magic number: Asia/Dhaka JRE version : 1.5.0_06 Wed Dec 30 01:00:00 GMT 2009 TimeZone tested : Greenwich Mean Time Your tested time is not in daylight-savings time. C:\Program Files\Java\jre1.5.0_06\bin> Please help me. Mamun

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tzdata2010b
by Olson, Arthur David (NIH/NCI) [E] Jan. 25, 2010

Jan. 25, 2010

The file... ftp://elsie.nci.nih.gov/pub/tzdata2010b.tar.gz ...is now available; this reflects the Mexico changes previously circulated on the time zone mailing list. With providence well enjoy a bit of stability now. --ado

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proposed time zone package changes--Mexico (revised)
by Arthur David Olson Jan. 20, 2010

Jan. 20, 2010

Based on the updated information from a government web site, here are revised proposed changes to the time zone package; files "northamerica" and "zone.tab" are involved. If no problems are found, these will appear in the ftp version on 2010-01-25. --ado diff -r -c old/northamerica new/northamerica *** old/northamerica Mon Jan 18 08:30:04 2010 --- new/northamerica Wed Jan 20 12:37:20 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 8.30 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 1955,1960 **** --- 1955,2012 ---- # 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 (2010-01-20): + # The page + # <a href="http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010"> + # http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010 + # </a> + # includes this text: + # En los municipios fronterizos de Tijuana y Mexicali en Baja California; + # Juárez y Ojinaga en Chihuahua; Acuña y Piedras Negras en Coahuila; + # Anáhuac en Nuevo León; y Nuevo Laredo, Reynosa y Matamoros en + # Tamaulipas, la aplicación de este horario estacional surtirá efecto + # desde las dos horas del segundo domingo de marzo y concluirá a las dos + # horas del primer domingo de noviembre. + # En los municipios fronterizos que se encuentren ubicados en la franja + # fronteriza norte en el territorio comprendido entre la línea + # internacional y la línea paralela ubicada a una distancia de veinte + # kilómetros, así como la Ciudad de Ensenada, Baja California, hacia el + # interior del país, la aplicación de este horario estacional 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 --- 2033,2051 ---- -6:00 - CST 1981 Dec 23 -5:00 - EST 1982 Dec 2 -6:00 Mexico C%sT ! # Coahuila, Durango, Nuevo Leon, Tamaulipas (near US border) ! 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 (away from US border) 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 *************** *** 1996,2002 **** -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 --- 2054,2072 ---- -6:00 Mexico C%sT 2001 Sep 30 02:00 -6:00 - CST 2002 Feb 20 -6:00 Mexico C%sT ! # Chihuahua (near US border) ! 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 ! -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 2010 ! -7:00 US M%sT ! # Chihuahua (away from US border) 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 *************** *** 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 --- 2100,2129 ---- -7:00 - MST 1949 Jan 14 -8:00 - PST 1970 -7:00 Mexico M%sT ! # Baja California (near US border) 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 (away from US border) + Zone America/Santa_Isabel -7:39:28 - LMT 1922 Jan 1 0:20:32 + -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 Mon Jan 18 08:30:04 2010 --- new/zone.tab Wed Jan 20 12:25:55 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 8.33 # 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 away from US border ! MX +2550-09730 America/Matamoros US Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas near US border MX +2313-10625 America/Mazatlan Mountain Time - S Baja, Nayarit, Sinaloa ! MX +2838-10605 America/Chihuahua Mexican Mountain Time - Chihuahua away from US border ! MX +2934-10425 America/Ojinaga US Mountain Time - Chihuahua near US border MX +2904-11058 America/Hermosillo Mountain Standard Time - Sonora ! MX +3232-11701 America/Tijuana US Pacific Time - Baja California near US border ! MX +3018-11452 America/Santa_Isabel Mexican Pacific Time - Baja California away from US border MY +0310+10142 Asia/Kuala_Lumpur peninsular Malaysia MY +0133+11020 Asia/Kuching Sabah & Sarawak MZ -2558+03235 Africa/Maputo

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Wrong DST rules for Mauritius
by Leonid A. Movsesjan Jan. 20, 2010

Jan. 20, 2010

Good day! There are two rules for Mauritius in current version of timezone/africa: Rule Mauritius 2008 max - Oct lastSun 2:00s 1:00 S Rule Mauritius 2009 max - Mar lastSun 2:00s 0 - It's wrong, because Mauritius used DST only in 2008/2009, prooflinks: http://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html http://www.timeanddate.com/news/time/mauritius-dst-will-not-repeat.html So, rules should be: Rule Mauritius 2008 only - Oct lastSun 2:00s 1:00 S Rule Mauritius 2009 only - Mar lastSun 2:00s 0 - or something like that. -- Best regards, Leonid A. Movsesjan

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Mexican border DST
by Olson, Arthur David (NIH/NCI) [E] Jan. 20, 2010

Jan. 20, 2010

I've found this government-site web page... http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010 ...indicating that Ensenada is indeed to use US DST rules starting in 2010; I'll adjust the proposed time zone package changes accordingly and hope to send something out later today. --ado

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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

3 3

problem with java tz database
by Mamun Shaheed Dec. 31, 2009

Dec. 31, 2009

Dear all, I was trying to modify the tzdatabase ($JRE_HOME/lib/zi/*) for JRE, but could not make it sucess. Here is what I have done so far... 1. Downloaded the code and latest tzdata from ftp://elsie.nci.nih.gov/pub/. 2. Modified the asia file and insert my rule there. 3. compile the file with zic. 4. copy the compiled file and put in in $JRE_HOME/lib/zi/Asia/ of my windows pcs 5. run the DSTTest file available in sun.com to check the time zone and got following error C:\Program Files\Java\jre1.5.0_06\bin>java DSTTest "12/30/2009 1:00 AM" ZoneInfo: wrong magic number: Asia/Dhaka ZoneInfo: wrong magic number: Asia/Dhaka JRE version : 1.5.0_06 Wed Dec 30 01:00:00 GMT 2009 TimeZone tested : Greenwich Mean Time Your tested time is not in daylight-savings time. C:\Program Files\Java\jre1.5.0_06\bin> Please help me. Mamun

1 0

tzdata2009u
by Olson, Arthur David (NIH/NCI) [E] Dec. 29, 2009

Dec. 29, 2009

The file... ftp://elsie.nci.nih.gov/pub/tzdata2009u.tar.gz ...is now available; this incorporates changes to DST in Bangladesh. I expect tzdata2010a.tar.gz (reflecting changes in Mexico) early next year. --ado

3 4

Re: proposed changes to time zone "asia" file for Bangladesh
by Arthur David Olson Dec. 26, 2009

Dec. 26, 2009

At Danvin Ruangchan's suggestion, here's the proposed change to Bangladesh as a rule. --ado ------- asia ------- *** /tmp/geta10467 Sat Dec 26 08:26:16 2009 --- /tmp/getb10467 Sat Dec 26 08:26:16 2009 *************** *** 1,4 **** ! # @(#)asia 8.48 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,4 ---- ! # @(#)asia 8.50 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 196,201 **** --- 196,236 ---- # http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefin… # </a> + # From Alexander Krivenyshev (2009-12-24): + # According to Bangladesh newspaper "The Daily Star," + # Bangladesh will change its clock back to Standard Time on Dec 31, 2009. + # + # Clock goes back 1-hr on Dec 31 night. + # <a href="http://www.thedailystar.net/newDesign/news-details.php?nid=119228"> + # http://www.thedailystar.net/newDesign/news-details.php?nid=119228 + # </a> + # and + # <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html"> + # http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html + # </a> + # + # "...The government yesterday decided to put the clock back by one hour + # on December 31 midnight and the new time will continue until March 31, + # 2010 midnight. The decision came at a cabinet meeting at the Prime + # Minister's Office last night..." + + # From Danvin Ruangchan (2009-12-24): + # ...the news mentions DST will be turned off again 7 months after March + # 31st on Oct 31, 2010. + + # From Arthur David Olson (2009-12-26): + # Indeed, "The government will advance again the Banglasdesh Standard + # Time by one one hour on March 31 next year by enforcing the Daylight + # Saving Time (DST) for seven months. It will continue till October 31 + # until further notice." I take that last sentence as the + # 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 5:53:20 - HMT 1941 Oct # Howrah Mean Time? *************** *** 203,210 **** 5:30 - IST 1942 Sep 6:30 - BURT 1951 Sep 30 6:00 - DACT 1971 Mar 26 # Dacca Time ! 6:00 - BDT 2009 Jun 19 23:00 # Bangladesh Time ! 6:00 1:00 BDST # Bhutan # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 238,245 ---- 5:30 - IST 1942 Sep 6:30 - BURT 1951 Sep 30 6:00 - DACT 1971 Mar 26 # Dacca Time ! 6:00 - BDT 2009 ! 6:00 Dhaka BD%sT # Bhutan # Zone NAME GMTOFF RULES FORMAT [UNTIL]

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proposed changes to time zone "asia" file for Bangladesh
by Arthur David Olson Dec. 25, 2009

Dec. 25, 2009

Below are changes to the "asia" file to reflect news from Bangladesh. Since clocks are due to change with the year, these changes will appear in the ftp archive this coming Monday (2009-12-28) unless problems are found. --ado ------- asia ------- *** /tmp/geta5692 Thu Dec 24 18:00:10 2009 --- /tmp/getb5692 Thu Dec 24 18:00:10 2009 *************** *** 1,4 **** ! # @(#)asia 8.48 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,4 ---- ! # @(#)asia 8.49 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 196,201 **** --- 196,219 ---- # http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefin… # </a> + # From Alexander Krivenyshev (2009-12-24): + # According to Bangladesh newspaper "The Daily Star," + # Bangladesh will change its clock back to Standard Time on Dec 31, 2009. + # + # Clock goes back 1-hr on Dec 31 night. + # <a href="http://www.thedailystar.net/newDesign/news-details.php?nid=119228"> + # http://www.thedailystar.net/newDesign/news-details.php?nid=119228 + # </a> + # and + # <a href="http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html"> + # http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html + # </a> + # + # "...The government yesterday decided to put the clock back by one hour + # on December 31 midnight and the new time will continue until March 31, + # 2010 midnight. The decision came at a cabinet meeting at the Prime + # Minister's Office last night..." + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Dhaka 6:01:40 - LMT 1890 5:53:20 - HMT 1941 Oct # Howrah Mean Time? *************** *** 204,209 **** --- 222,229 ---- 6:30 - BURT 1951 Sep 30 6:00 - DACT 1971 Mar 26 # Dacca Time 6:00 - BDT 2009 Jun 19 23:00 # Bangladesh Time + 6:00 1:00 BDST 2010 + 6:00 - BDT 2010 Apr 6:00 1:00 BDST # Bhutan

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Bangladesh back to Standard Time on Dec 31, 2009
by Alexander Krivenyshev Dec. 24, 2009

Dec. 24, 2009

According to Bangladesh newspaper "The Daily Star", Bangladesh will change its clock back to Standard Time on Dec 31, 2009. Clock goes back 1-hr on Dec 31 night. http://www.thedailystar.net/newDesign/news-details.php?nid=119228 and http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html " ....The government yesterday decided to put the clock back by one hour on December 31 midnight and the new time will continue until March 31, 2010 midnight.The decision came at a cabinet meeting at the Prime Minister's Office last night. ..." Alexander Krivenyshev, http://www.WorldTimeZone.com

1 0

2009t
by Olson, Arthur David (NIH/NCI) [E] Dec. 21, 2009

Dec. 21, 2009

The files... ftp://elsie.nci.nih.gov/pub/tzcode2009t.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2009t.tar.gz ...are now available; these reflect the changes circulated last week on the time zone mailing list. --ado

1 0

London and Dublin zone definitions
by Danvin Ruangchan Dec. 17, 2009

Dec. 17, 2009

Hey all, Is there a reason why the Europe/London and Europe/Dublin Zone definitions are outside the "Europe" section that starts on line # 449 in the "europe" data file? For consistency sake, shouldn't those two sections be moved under the "Europe" section where the DST Rule for "EU" is defined? thanks danvin

2 2

Help With Understanding the Binary Files
by Bill Seymour Dec. 14, 2009

Dec. 14, 2009

Could somebody please help me interpret the tz binary files? I'm having trouble understanding what to do with the two arrays that follow the leap second array. 1. tzfile.h says that they're "indexed by type"; but I don't see anything in the "type" (which I take to mean what tzfile.5 calls "struct ttinfo") that could be used as such an index. Does "indexed by type" mean "having the same index as the type", in other words, the value from the array following the transition time array? 2. tzfile.h seems to imply that these booleans indicate how I should interpret the values in the array of transition times. Is that correct? If so, how do I calculate standard time while DST is being observed given that the SAVE column in the Rule has been lost? Do I assume that the offset for DST is always exactly 1 hour? What about solar89, etc.? 3. tzfile.5 says that these "are used when a time zone file is used in handling POSIX-style time zone environment variables." Does that mean that the "transition times" are the ones in the TZ variable, not the array of transition times in the file (so my question 2 is moot)? I'm very confused. 8-( Thanks, --Bill Seymour

3 6

proposed time zone package changes
by Arthur David Olson Dec. 12, 2009

Dec. 12, 2009

Below are proposed changes to the time zone package; none of these changes affect binary files. The executive summary: Theory "Calendrical Calculations" updated (thanks to Steve Ward). asia Hong Kong comments corrected; Xinjiang comments added. europe Russian region comments updated (thanks to Oscar van Vlijmen) tz-art.htm Added Luciana Souza's "Tide." tz-link.htm Added "Simple Timer + Clocks" (thanks to George Bradt). tzfile.5 Typo fixed (thanks to Steve Ward). zone.tab version change only If no problems are found, these changes will appear in the ftpable packages on 2009-12-21. --ado diff -r -c old/Theory new/Theory *** old/Theory Wed Oct 21 09:12:41 2009 --- new/Theory Sat Dec 12 09:11:32 2009 *************** *** 1,4 **** ! @(#)Theory 8.3 This file is in the public domain, so clarified as of 2009-05-17 by Arthur David Olson. --- 1,4 ---- ! @(#)Theory 8.4 This file is in the public domain, so clarified as of 2009-05-17 by Arthur David Olson. *************** *** 360,369 **** Calendrical issues are a bit out of scope for a time zone database, but they indicate the sort of problems that we would run into if we extended the time zone database further into the past. An excellent ! resource in this area is Edward M. Reingold and Nachum Dershowitz, ! <a href="http://emr.cs.uiuc.edu/home/reingold/calendar-book/second-edition/"> ! Calendrical Calculations: The Millennium Edition ! </a>, Cambridge University Press (2001). Other information and sources are given below. They sometimes disagree. --- 360,369 ---- Calendrical issues are a bit out of scope for a time zone database, but they indicate the sort of problems that we would run into if we extended the time zone database further into the past. An excellent ! resource in this area is Nachum Dershowitz and Edward M. Reingold, ! <a href="http://emr.cs.iit.edu/home/reingold/calendar-book/third-edition/"> ! Calendrical Calculations: Third Edition ! </a>, Cambridge University Press (2008). Other information and sources are given below. They sometimes disagree. diff -r -c old/asia new/asia *** old/asia Thu Oct 29 07:12:14 2009 --- new/asia Sat Dec 12 08:39:40 2009 *************** *** 1,4 **** ! # @(#)asia 8.44 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,4 ---- ! # @(#)asia 8.48 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 363,368 **** --- 363,431 ---- # West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke, # Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding, # and Yarkand. + + # From Luther Ma (2009-10-17): + # Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in + # Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time, + # but have no need of it. All planes, trains, and schools function on + # what is called "Beijing time." When Han make an appointment in Chinese + # they implicitly use Beijing time. + # + # On the other hand, ethnic Uyghurs, who make up about half the + # population of Xinjiang, typically use "Xinjiang time" which is two + # hours behind Beijing time, or UTC +0600. The government of the Xinjiang + # Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as + # local governments such as the Urumqi city government use both times in + # publications, referring to what is popularly called Xinjiang time as + # "Urumqi time." When Uyghurs make an appointment in the Uyghur language + # they almost invariably use Xinjiang time. + # + # (Their ethnic Han compatriots would typically have no clue of its + # widespread use, however, because so extremely few of them are fluent in + # Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.) + # + # (...As with the rest of China there was a brief interval ending in 1990 + # or 1991 when summer time was in use. The confusion was severe, with + # the province not having dual times but four times in use at the same + # time. Some areas remained on standard Xinjiang time or Beijing time and + # others moving their clocks ahead.) + # + # ...an example of an official website using of Urumqi time. + # + # The first few lines of the Google translation of + # <a href="http://www.fjysgl.gov.cn/show.aspx?id=2379&cid=39"> + # http://www.fjysgl.gov.cn/show.aspx?id=2379&cid=39 + # </a> + # (retrieved 2009-10-13) + # > Urumqi fire seven people are missing the alleged losses of at least + # > 500 million yuan + # > + # > (Reporter Dong Liu) the day before 20:20 or so (Urumqi Time 18:20), + # > Urumqi City Department of International Plaza Luther Qiantang River + # > burst fire. As of yesterday, 18:30, Urumqi City Fire officers and men + # > have worked continuously for 22 hours... + + # From Luther Ma (2009-11-19): + # With the risk of being redundant to previous answers these are the most common + # English "transliterations" (w/o using non-English symbols): + # + # 1. Wulumuqi... + # 2. Kashi... + # 3. Urumqi... + # 4. Kashgar... + # ... + # 5. It seems that Uyghurs in Urumqi has been using Xinjiang since at least the + # 1960's. I know of one Han, now over 50, who grew up in the surrounding + # countryside and used Xinjiang time as a child. + # + # 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any + # start date for Xinjiang time. + # + # Without having access to local historical records, nor the ability to legally + # publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur + # Autonomous Region under the PRC. (Before that Uyghurs, of course, would also + # not be using Beijing time, but some local time.) + Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar 5:30 - KAST 1940 # Kashgar Time 5:00 - KAST 1980 May *************** *** 370,377 **** # From Lee Yiu Chung (2009-10-24): ! # I found there are some mistakes for the historial DST rule for Hong ! # Kong. Accoring to the DST record from Hong Kong Observatory (actually, # it is not [an] observatory, but the official meteorological agency of HK, # and also serves as the official timing agency), there are some missing # and incorrect rules. Although the exact switch over time is missing, I --- 433,440 ---- # From Lee Yiu Chung (2009-10-24): ! # I found there are some mistakes for the...DST rule for Hong ! # Kong. [According] to the DST record from Hong Kong Observatory (actually, # it is not [an] observatory, but the official meteorological agency of HK, # and also serves as the official timing agency), there are some missing # and incorrect rules. Although the exact switch over time is missing, I diff -r -c old/europe new/europe *** old/europe Thu Oct 29 07:14:18 2009 --- new/europe Sat Dec 12 10:02:17 2009 *************** *** 1,5 **** # <pre> ! # @(#)europe 8.24 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)europe 8.25 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 2130,2141 **** # From Oscar van Vlijmen (2003-10-18): [This region consists of] # Aginskij Buryatskij avtonomnyj okrug, Amurskaya oblast', # [parts of] Respublika Sakha (Yakutiya), Chitinskaya oblast'. # The Sakha districts are: Aldanskij, Amginskij, Anabarskij, ! # Bulunskij, Verkhnekolymskij, Verkhnevilyujskij, Vilyujskij, Gornyj, # Zhiganskij, Kobyajskij, Lenskij, Megino-Kangalasskij, Mirninskij, ! # Namskij, Nyurbinskij, Olenekskij, Olekminskij, Srednekolymskij, # Suntarskij, Tattinskij, Ust'-Aldanskij, Khangalasskij, ! # Churapchinskij, Eveno-Bytantajskij. Zone Asia/Yakutsk 8:38:40 - LMT 1919 Dec 15 8:00 - YAKT 1930 Jun 21 # Yakutsk Time 9:00 Russia YAK%sT 1991 Mar 31 2:00s --- 2130,2149 ---- # From Oscar van Vlijmen (2003-10-18): [This region consists of] # Aginskij Buryatskij avtonomnyj okrug, Amurskaya oblast', # [parts of] Respublika Sakha (Yakutiya), Chitinskaya oblast'. + + # From Oscar van Vlijmen (2009-11-29): + # ...some regions of RUssia were merged with others since 2005... + # Some names were changed, no big deal, except for one instance: a new name. + # YAK/YAKST: UTC+9 Zabajkal'skij kraj. + + # From Oscar van Vlijmen (2009-11-29): # The Sakha districts are: Aldanskij, Amginskij, Anabarskij, ! # Verkhnevilyujskij, Vilyujskij, Gornyj, # Zhiganskij, Kobyajskij, Lenskij, Megino-Kangalasskij, Mirninskij, ! # Namskij, Nyurbinskij, Olenyokskij, Olyokminskij, # Suntarskij, Tattinskij, Ust'-Aldanskij, Khangalasskij, ! # Churapchinskij, Eveno-Bytantajskij Natsional'nij. ! Zone Asia/Yakutsk 8:38:40 - LMT 1919 Dec 15 8:00 - YAKT 1930 Jun 21 # Yakutsk Time 9:00 Russia YAK%sT 1991 Mar 31 2:00s *************** *** 2145,2151 **** # From Oscar van Vlijmen (2003-10-18): [This region consists of] # Evrejskaya avtonomnaya oblast', Khabarovskij kraj, Primorskij kraj, # [parts of] Respublika Sakha (Yakutiya). ! # The Sakha districts are: Verkhoyanskij, Tomponskij, Ust'-Majskij, # Ust'-Yanskij. Zone Asia/Vladivostok 8:47:44 - LMT 1922 Nov 15 9:00 - VLAT 1930 Jun 21 # Vladivostok Time --- 2153,2161 ---- # From Oscar van Vlijmen (2003-10-18): [This region consists of] # Evrejskaya avtonomnaya oblast', Khabarovskij kraj, Primorskij kraj, # [parts of] Respublika Sakha (Yakutiya). ! ! # From Oscar van Vlijmen (2009-11-29): ! # The Sakha districts are: Bulunskij, Verkhoyanskij, Tomponskij, Ust'-Majskij, # Ust'-Yanskij. Zone Asia/Vladivostok 8:47:44 - LMT 1922 Nov 15 9:00 - VLAT 1930 Jun 21 # Vladivostok Time *************** *** 2166,2173 **** # From Oscar van Vlijmen (2003-10-18): [This region consists of] # Magadanskaya oblast', Respublika Sakha (Yakutiya). # Probably also: Kuril Islands. ! # The Sakha districts are: Abyjskij, Allaikhovskij, Momskij, ! # Nizhnekolymskij, Ojmyakonskij. Zone Asia/Magadan 10:03:12 - LMT 1924 May 2 10:00 - MAGT 1930 Jun 21 # Magadan Time 11:00 Russia MAG%sT 1991 Mar 31 2:00s --- 2176,2185 ---- # From Oscar van Vlijmen (2003-10-18): [This region consists of] # Magadanskaya oblast', Respublika Sakha (Yakutiya). # Probably also: Kuril Islands. ! ! # From Oscar van Vlijmen (2009-11-29): ! # The Sakha districts are: Abyjskij, Allaikhovskij, Verkhhhnekolymskij, Momskij, ! # Nizhnekolymskij, Ojmyakonskij, Srednekolymskij. Zone Asia/Magadan 10:03:12 - LMT 1924 May 2 10:00 - MAGT 1930 Jun 21 # Magadan Time 11:00 Russia MAG%sT 1991 Mar 31 2:00s diff -r -c old/tz-art.htm new/tz-art.htm *** old/tz-art.htm Wed Oct 28 13:19:00 2009 --- new/tz-art.htm Sat Dec 12 10:04:50 2009 *************** *** 9,15 **** <body> <h1>Time and the Arts</h1> <address> ! @(#)tz-art.htm 8.14 </address> <p> This file is in the public domain, so clarified as of --- 9,15 ---- <body> <h1>Time and the Arts</h1> <address> ! @(#)tz-art.htm 8.15 </address> <p> This file is in the public domain, so clarified as of *************** *** 227,233 **** --- 227,245 ---- <tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=10:gifqxqt5ld0e">AMG Rating</a></td><td>4.5 stars</td></tr> <tr><td>ADO Rating</td><td>1.5 stars</td></tr> <tr><td>Notes<td>The title song is also available on "Bob Dylan's Greatest Hits" and "The Essential Bob Dylan."</td></tr> + <tr><td> </td></tr> + <tr><td>Artist</td><td>Luciana Souza</td></tr> + <tr><td>CD</td><td>Tide</td></tr> + <tr><td>Copyright Date</td><td>2009</td></tr> + <tr><td>Label</td><td>Universal Jazz France</td></tr> + <tr><td>ID</td><td>B0012688-02</td></tr> + <tr><td>Total Time</td><td>42:31</td></tr> + <tr><td><a href="http://www.allmusic.com/cg/amg.dll?p=amg&sql=10:3bftxzw0ldhe"</a>AMG Rating</a></td><td>3.5 stars</td></tr> + <tr><td>ADO Rating</td><td>2.5 stars</td></tr> + <tr><td>Notes<td>Includes the song "Fire and Wood" with the lyric + "The clocks were turned back you remeber/Think it's still November." + </td></tr> <tr><td> </td></tr> <tr><td>TV episode title</td><td>The Lost Hour</td> diff -r -c old/tz-link.htm new/tz-link.htm *** old/tz-link.htm Wed Nov 4 10:00:47 2009 --- new/tz-link.htm Sat Dec 12 09:39:02 2009 *************** *** 18,24 **** <body> <h1>Sources for Time Zone and Daylight Saving Time Data</h1> <address> ! @(#)tz-link.htm 8.23 </address> <p> This file is in the public domain, so clarified as of --- 18,24 ---- <body> <h1>Sources for Time Zone and Daylight Saving Time Data</h1> <address> ! @(#)tz-link.htm 8.24 </address> <p> This file is in the public domain, so clarified as of *************** *** 149,154 **** --- 149,157 ---- <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> + <li><a href="http://simpletimerclocks.mozdev.org/">Simple Timer + Clocks</a> + is a Firefox add-on which uses a timezone data file generated from the + tz data files.</li> </ul> <h2>Other time zone database formats</h2> <ul> diff -r -c old/tzfile.5 new/tzfile.5 *** old/tzfile.5 Wed Oct 21 09:12:42 2009 --- new/tzfile.5 Sat Dec 12 09:05:09 2009 *************** *** 7,13 **** .SH DESCRIPTION The time zone information files used by .IR tzset (3) ! begin with the magic characters "TZif" to identify then as time zone information files, followed by a character identifying the version of the file's format (as of 2005, either an ASCII NUL or a '2') --- 7,13 ---- .SH DESCRIPTION The time zone information files used by .IR tzset (3) ! begin with the magic characters "TZif" to identify them as time zone information files, followed by a character identifying the version of the file's format (as of 2005, either an ASCII NUL or a '2') *************** *** 147,152 **** such instants). .SH SEE ALSO newctime(3) ! .\" @(#)tzfile.5 8.2 .\" This file is in the public domain, so clarified as of .\" 1996-06-05 by Arthur David Olson. --- 147,152 ---- such instants). .SH SEE ALSO newctime(3) ! .\" @(#)tzfile.5 8.3 .\" This file is in the public domain, so clarified as of .\" 1996-06-05 by Arthur David Olson. diff -r -c old/zone.tab new/zone.tab *** old/zone.tab Thu Oct 29 07:12:00 2009 --- new/zone.tab Sat Dec 12 09:57:09 2009 *************** *** 1,5 **** # <pre> ! # @(#)zone.tab 8.29 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # --- 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. #

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