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core dump from within asctime_r()
by Robert Elz Feb. 18, 2010

Feb. 18, 2010

A NetBSD user reported fsck dumping core (when attempting to correct a corrupted filesystem). That's not nice. Upon investigation, the core dump turns out to be from within asctime_r() (as called via asctime() from ctime()). The code in fsck just does p = ctime(&t); where "t" contains one of the time fields from an (already determined to be corrupted, or we wouldn't be printing) inode. ctime() is (or course) just asctime(locatime(t)) locatime() can return NULL these days, and given a nonsense time value (which is quite likely under these circumstances), probably did, but asctime() doesn't expect anything but a valus "struct tm *" and will simply dereference NULL is NULL is returned from localtime() - instant core. It would be possible to make ctime() be tm = localtime(t); if (tm == NULL) return NULL; return asctime(tm); and in theory that would be adequate, but I'm actually going to suggest moving the fix into asctime() (into asctime_r() really of course), and have asctime_r() start if (timeptr == NULL) return NULL; I think that's a safer fix. Appended is the patch I suggest, made against the tzcode2009t sources (latest I believe.) kre

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FW: Paraguay modifies its DST schedule
by Olson, Arthur David (NIH/NCI) [E] Feb. 18, 2010

Feb. 18, 2010

I'm forwarding this message from Carlos Raúl Perasso, who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. --ado From: Carlos Raúl Perasso [mailto:crperasso@gmail.com] Sent: Thursday, February 18, 2010 7:59 To: tz(a)lecserver.nci.nih.gov Subject: Paraguay modifies its DST schedule By decree number 3958 issued yesterday (http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf) Paraguay changes its DST schedule, postponing the March rule to April and modifying the October date. The decree reads: ... Art. 1. It is hereby established that from the second Sunday of the month of April of this year (2010), the official time is to be set back 60 minutes, and that on the first Sunday of the month of October, it is to be set forward 60 minutes, in all the territory of the Paraguayan Republic. ... I send the modified Paraguay file with the following rules modified (1-2) and added (3-4): Rule Paraguay 2004 2009 - Oct Sun>=15 0:00 1 D Rule Paraguay 2005 2009 - Mar Sun>=8 0:00 0 S Rule Paraguay 2010 max - Apr Sun>=8 0:00 0 S Rule Paraguay 2010 max - Oct Sun<=7 0:00 1 D Un abrazo desde Paraguay, Carlos Raúl Perasso

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Paraguay modifies its DST schedule
by Carlos Raúl Perasso Feb. 18, 2010

Feb. 18, 2010

By decree number 3958 issued yesterday ( http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf) Paraguay changes its DST schedule, postponing the March rule to April and modifying the October date. The decree reads: ... Art. 1. It is hereby established that from the second Sunday of the month of April of this year (2010), the official time is to be set back 60 minutes, and that on the first Sunday of the month of October, it is to be set forward 60 minutes, in all the territory of the Paraguayan Republic. ... I send the modified Paraguay file with the following rules modified (1-2) and added (3-4): Rule Paraguay 2004 2009 - Oct Sun>=15 0:00 1 D Rule Paraguay 2005 2009 - Mar Sun>=8 0:00 0 S Rule Paraguay 2010 max - Apr Sun>=8 0:00 0 S Rule Paraguay 2010 max - Oct Sun<=7 0:00 1 D Un abrazo desde Paraguay, Carlos Raúl Perasso

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proposed time zone package changes--core dump avoidance
by Arthur David Olson Feb. 14, 2010

Feb. 14, 2010

Below find proposed changes to the time zone package: * asctime.c Set errno to EINVAL and return "??? ??? ?? ??:??:?? ????\n" if asctime_r is called with a NULL struct tm pointer. (Note that asctime_r is called by ctime_r and asctime; asctime is called by ctime.) * localtime.c Set errno to EINVAL and return WRONG if time1 is called with a NULL struct tm pointer; avoid dereference if a NULL struct tm pointer is passed to timelocal, timegm, or timeoff. (Note that time1 is called by mktime, timegm, and timeoff; mktime is called by timelocal.) Barring problems, expect these changes to show up in the ftp package on 2010-02-16 (a day later than usual given a U. S. federal holiday). --ado ------- asctime.c ------- *** /tmp/geta26934 Sat Feb 6 13:23:25 2010 --- /tmp/getb26934 Sat Feb 6 13:23:25 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 8.3"; #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 "??? ??? ?? ??:??:?? ????\n"; + } if (timeptr->tm_wday < 0 || timeptr->tm_wday >= DAYSPERWEEK) wn = "???"; else wn = wday_name[timeptr->tm_wday]; ------- localtime.c ------- *** /tmp/geta26952 Sat Feb 6 13:23:25 2010 --- /tmp/getb26952 Sat Feb 6 13:23:25 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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30 Rock
by Arthur David Olson Feb. 11, 2010

Feb. 11, 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. 6, 2010

Feb. 6, 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. 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". 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. 18, 2010

Jan. 18, 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. 4, 2010

Jan. 4, 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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problem with java tz database
by Mamun Shaheed Dec. 30, 2009

Dec. 30, 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

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tzdata2009u
by Olson, Arthur David (NIH/NCI) [E] Dec. 28, 2009

Dec. 28, 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

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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. 24, 2009

Dec. 24, 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

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