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proposed time zone package changes
by lee_yiu_chung＠yahoo.com Oct. 29, 2009

Oct. 29, 2009

Hi, I think you didn't fix the Hong Kong DST issue for 1980 yet, there is no DST in 1980.

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proposed time zone package changes
by Arthur David Olson Oct. 29, 2009

Oct. 29, 2009

At the end of this message are proposed changes to the time zone package; here's the executive summary: * asia Change end of DST in Syria in 2009 and forward from November 1 to last Friday in October. Changes to past Hong Kong transitions. * europe Add Asia/Novokuznetsk * tz-art.htm Additions and improvements from Mark Brader. * zdump.c Function named "usage" reworked to use global progname variable (avoiding a compiler warning). * zone.tab Add Asia/Novokuznetsk (No Xinjiang changes; I'll need to ask for advice from the list before handling that. Stay tuned.) If there are no problems, these changes will show up on the ftp site on 2009-11-02. --ado diff -c old/asia new/asia *** old/asia Wed Oct 21 09:12:43 2009 --- new/asia Wed Oct 28 15:51:43 2009 *************** *** 1,5 **** ! # <pre> ! # @(#)asia 8.42 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,4 ---- ! # @(#)asia 8.44 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 369,382 **** 5:00 - KAST 1980 May 8:00 PRC C%sT # Hong Kong (Xianggang) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule HK 1946 only - Apr 20 3:30 1:00 S Rule HK 1946 only - Dec 1 3:30 0 - Rule HK 1947 only - Apr 13 3:30 1:00 S Rule HK 1947 only - Dec 30 3:30 0 - Rule HK 1948 only - May 2 3:30 1:00 S ! Rule HK 1948 1952 - Oct lastSun 3:30 0 - Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S Rule HK 1953 only - Nov 1 3:30 0 - Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S --- 368,451 ---- 5:00 - KAST 1980 May 8:00 PRC C%sT + + # 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 + # think 3:30 is correct. The official DST record for Hong Kong can be + # obtained from + # <a href="http://www.hko.gov.hk/gts/time/Summertime.htm"> + # http://www.hko.gov.hk/gts/time/Summertime.htm + # </a>. + + # From Arthur David Olson (2009-10-28): + # Here are the dates given at + # <a href="http://www.hko.gov.hk/gts/time/Summertime.htm"> + # http://www.hko.gov.hk/gts/time/Summertime.htm + # </a> + # as of 2009-10-28: + # Year Period + # 1941 1 Apr to 30 Sep + # 1942 Whole year + # 1943 Whole year + # 1944 Whole year + # 1945 Whole year + # 1946 20 Apr to 1 Dec + # 1947 13 Apr to 30 Dec + # 1948 2 May to 31 Oct + # 1949 3 Apr to 30 Oct + # 1950 2 Apr to 29 Oct + # 1951 1 Apr to 28 Oct + # 1952 6 Apr to 25 Oct + # 1953 5 Apr to 1 Nov + # 1954 21 Mar to 31 Oct + # 1955 20 Mar to 6 Nov + # 1956 18 Mar to 4 Nov + # 1957 24 Mar to 3 Nov + # 1958 23 Mar to 2 Nov + # 1959 22 Mar to 1 Nov + # 1960 20 Mar to 6 Nov + # 1961 19 Mar to 5 Nov + # 1962 18 Mar to 4 Nov + # 1963 24 Mar to 3 Nov + # 1964 22 Mar to 1 Nov + # 1965 18 Apr to 17 Oct + # 1966 17 Apr to 16 Oct + # 1967 16 Apr to 22 Oct + # 1968 21 Apr to 20 Oct + # 1969 20 Apr to 19 Oct + # 1970 19 Apr to 18 Oct + # 1971 18 Apr to 17 Oct + # 1972 16 Apr to 22 Oct + # 1973 22 Apr to 21 Oct + # 1973/74 30 Dec 73 to 20 Oct 74 + # 1975 20 Apr to 19 Oct + # 1976 18 Apr to 17 Oct + # 1977 Nil + # 1978 Nil + # 1979 13 May to 21 Oct + # 1980 to Now Nil + # The page does not give start or end times of day. + # The page does not give a start date for 1942. + # The page does not givw an end date for 1945. + # The Japanese occupation of Hong Kong began on 1941-12-25. + # The Japanese surrender of Hong Kong was signed 1945-09-15. + # For lack of anything better, use start of those days as the transition times. + # Hong Kong (Xianggang) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S + Rule HK 1941 only - Apr 1 3:30 1:00 S + Rule HK 1941 only - Sep 30 3:30 0 - Rule HK 1946 only - Apr 20 3:30 1:00 S Rule HK 1946 only - Dec 1 3:30 0 - Rule HK 1947 only - Apr 13 3:30 1:00 S Rule HK 1947 only - Dec 30 3:30 0 - Rule HK 1948 only - May 2 3:30 1:00 S ! Rule HK 1948 1951 - Oct lastSun 3:30 0 - ! Rule HK 1952 only - Oct 25 3:30 0 - Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S Rule HK 1953 only - Nov 1 3:30 0 - Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S *************** *** 384,396 **** Rule HK 1955 1964 - Nov Sun>=1 3:30 0 - Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S Rule HK 1965 1977 - Oct Sun>=16 3:30 0 - ! Rule HK 1979 1980 - May Sun>=8 3:30 1:00 S ! Rule HK 1979 1980 - Oct Sun>=16 3:30 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30 8:00 HK HK%sT - ############################################################################### # Taiwan --- 453,467 ---- Rule HK 1955 1964 - Nov Sun>=1 3:30 0 - Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S Rule HK 1965 1977 - Oct Sun>=16 3:30 0 - ! Rule HK 1973 only - Dec 30 3:30 1:00 S ! Rule HK 1979 only - May Sun>=8 3:30 1:00 S ! Rule HK 1979 only - Oct Sun>=16 3:30 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30 + 8:00 HK HK%sT 1941 Dec 25 + 9:00 - JST 1945 Sep 15 8:00 HK HK%sT ############################################################################### # Taiwan *************** *** 2236,2244 **** # http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html # </a> Rule Syria 2008 only - Apr Fri>=1 0:00 1:00 S ! Rule Syria 2008 max - Nov 1 0:00 0 - Rule Syria 2009 max - Mar lastFri 0:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq --- 2307,2329 ---- # http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html # </a> + # From Steffen Thorsen (2009-10-27): + # The Syrian Arab News Network on 2009-09-29 reported that Syria will + # revert back to winter (standard) time on midnight between Thursday + # 2009-10-29 and Friday 2009-10-30: + # <a href="http://www.sana.sy/ara/2/2009/09/29/247012.htm"> + # http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic) + # </a> + + # From Arthur David Olson (2009-10-28): + # We'll see if future DST switching times turn out to be end of the last + # Thursday of the month or the start of the last Friday of the month or + # something else. For now, use the start of the last Friday. + Rule Syria 2008 only - Apr Fri>=1 0:00 1:00 S ! Rule Syria 2008 only - Nov 1 0:00 0 - Rule Syria 2009 max - Mar lastFri 0:00 1:00 S + Rule Syria 2009 max - Oct lastFri 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq diff -c old/europe new/europe *** old/europe Wed Oct 21 09:12:43 2009 --- new/europe Wed Oct 28 14:36:40 2009 *************** *** 1,5 **** # <pre> ! # @(#)europe 8.22 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)europe 8.23 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 2072,2078 **** --- 2072,2112 ---- 6:00 Russia NOV%sT 1992 Jan 19 2:00s 7:00 Russia NOV%sT 1993 May 23 # say Shanks & P. 6:00 Russia NOV%sT + + # From Alexander Krivenyshev (2009-10-13): + # Kemerovo oblast' (Kemerovo region) in Russia will change current time zone on + # March 28, 2010: + # from current Russia Zone 6 - Krasnoyarsk Time Zone (KRA) UTC +0700 + # to Russia Zone 5 - Novosibirsk Time Zone (NOV) UTC +0600 # + # This is according to Government of Russia decree # 740, on September + # 14, 2009 "Application in the territory of the Kemerovo region the Fifth + # time zone." ("Russia Zone 5" or old "USSR Zone 5" is GMT +0600) + # + # Russian Government web site (Russian language) + # <a href="http://www.government.ru/content/governmentactivity/rfgovernmentdecisions/a…"> + # http://www.government.ru/content/governmentactivity/rfgovernmentdecisions/a… + # </a> + # or Russian-English translation by WorldTimeZone.com with reference + # map to local region and new Russia Time Zone map after March 28, 2010 + # <a href="http://www.worldtimezone.com/dst_news/dst_news_russia03.html"> + # http://www.worldtimezone.com/dst_news/dst_news_russia03.html + # </a> + # + # Thus, when Russia will switch to DST on the night of March 28, 2010 + # Kemerovo region (Kemerovo oblast') will not change the clock. + # + # As a result, Kemerovo oblast' will be in the same time zone as + # Novosibirsk, Omsk, Tomsk, Barnaul and Altai Republic. + + Zone Asia/Novokuznetsk 5:48:48 - NMT 1920 Jan 6 + 6:00 - KRAT 1930 Jun 21 # Krasnoyarsk Time + 7:00 Russia KRA%sT 1991 Mar 31 2:00s + 6:00 Russia KRA%sT 1992 Jan 19 2:00s + 7:00 Russia KRA%sT 2010 Mar 28 2:00s + 6:00 Russia NOV%sT # Novosibirsk/Novokuznetsk Time + + # # From Oscar van Vlijmen (2001-08-25): [This region consists of] # Kemerovskaya oblast', Krasnoyarskij kraj, # Tajmyrskij (Dolgano-Nenetskij) avtonomnyj okrug, diff -c old/tz-art.htm new/tz-art.htm *** old/tz-art.htm Mon Jul 20 09:45:48 2009 --- new/tz-art.htm Wed Oct 28 13:19:00 2009 *************** *** 9,15 **** <body> <h1>Time and the Arts</h1> <address> ! @(#)tz-art.htm 8.13 </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 8.14 </address> <p> This file is in the public domain, so clarified as of *************** *** 354,360 **** (originally aired 2007-02-28). </li> <li> ! In the 1946 "A Matter of Life and Death," there is a reference to British Double Summer Time. The time does not play a large part in the plot; it's just a passing reference to the time when one of the --- 354,361 ---- (originally aired 2007-02-28). </li> <li> ! In the 1946 movie "A Matter of Life and Death" ! (U.S. title "Stairway to Heaven") there is a reference to British Double Summer Time. The time does not play a large part in the plot; it's just a passing reference to the time when one of the *************** *** 363,369 **** --- 364,395 ---- <a href="http://us.imdb.com/title/tt0038733/"> http://us.imdb.com/title/tt0038733/ </a>. (Dave Cantor) + <li> + The 1953 railway comedy movie "The Titfield Thunderbolt" includes a + play on words on British Double Summer Time. Valentine's wife wants + him to leave the pub and asks him, "Do you know what time it is?" + And he, happy where he is, replies: "Yes, my love. Summer double time." + IMDB page: + <a href="http://us.imdb.com/title/tt0046436/"> + http://us.imdb.com/title/tt0046436/ + </a>. (Mark Brader, 2009-10-02) </li> + <li> + The premise of the 1999 caper movie "Entrapment" involves computers + in an international banking network being shut down briefly at + midnight in each time zone to avoid any problems at the transition + from the year 1999 to 2000 in that zone. (Hmmmm.) If this shutdown + is extended by 10 seconds, it will create a one-time opportunity for + a gigantic computerized theft. To achieve this, at one location the + crooks interfere with the microwave system supplying time signals to + the computer, advancing the time by 0.1 second each minute over the + last hour of 1999. (So this movie teaches us that 0.1 x 60 = 10.) + IMDB page: + <a href="http://us.imdb.com/title/tt0137494/"> + http://us.imdb.com/title/tt0137494/ + </a>. (Mark Brader, 2009-10-02) + </li> + </li> </ul> <hr> <ul> diff -c old/zdump.c new/zdump.c *** old/zdump.c Mon Jul 20 09:45:46 2009 --- new/zdump.c Tue Oct 27 10:42:46 2009 *************** *** 3,9 **** ** 2009-05-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zdump.c 8.9"; /* ** This code has been made independent of the rest of the time --- 3,9 ---- ** 2009-05-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zdump.c 8.10"; /* ** This code has been made independent of the rest of the time *************** *** 236,242 **** } static void ! usage(const char *progname, FILE *stream, int status) { (void) fprintf(stream, _("%s: usage is %s [ --version ] [ --help ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n\ --- 236,244 ---- } static void ! usage(stream, status) ! FILE * const stream; ! const int status; { (void) fprintf(stream, _("%s: usage is %s [ --version ] [ --help ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n\ *************** *** 283,289 **** (void) printf("%s\n", elsieid); exit(EXIT_SUCCESS); } else if (strcmp(argv[i], "--help") == 0) { ! usage(progname, stdout, EXIT_SUCCESS); } vflag = 0; cutarg = NULL; --- 285,291 ---- (void) printf("%s\n", elsieid); exit(EXIT_SUCCESS); } else if (strcmp(argv[i], "--help") == 0) { ! usage(stdout, EXIT_SUCCESS); } vflag = 0; cutarg = NULL; *************** *** 293,299 **** else cutarg = optarg; if ((c != EOF && c != -1) || (optind == argc - 1 && strcmp(argv[optind], "=") == 0)) { ! usage(progname, stderr, EXIT_FAILURE); } if (vflag) { if (cutarg != NULL) { --- 295,301 ---- else cutarg = optarg; if ((c != EOF && c != -1) || (optind == argc - 1 && strcmp(argv[optind], "=") == 0)) { ! usage(stderr, EXIT_FAILURE); } if (vflag) { if (cutarg != NULL) { diff -c old/zone.tab new/zone.tab *** old/zone.tab Wed Oct 21 09:12:44 2009 --- new/zone.tab Wed Oct 28 14:36:26 2009 *************** *** 1,5 **** # <pre> ! # @(#)zone.tab 8.28 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # --- 1,5 ---- # <pre> ! # %W% # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # *************** *** 330,335 **** --- 330,336 ---- RU +5651+06036 Asia/Yekaterinburg Moscow+02 - Urals RU +5500+07324 Asia/Omsk Moscow+03 - west Siberia RU +5502+08255 Asia/Novosibirsk Moscow+03 - Novosibirsk + RU +5345+08707 Asia/Novokuznetsk Moscow+03 - Novokuznetsk RU +5601+09250 Asia/Krasnoyarsk Moscow+04 - Yenisei River RU +5216+10420 Asia/Irkutsk Moscow+05 - Lake Baikal RU +6200+12940 Asia/Yakutsk Moscow+06 - Lena River

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Syria to end DST a few days earlier
by Steffen Thorsen Oct. 27, 2009

Oct. 27, 2009

The Syrian Arab News Network on 2009-09-29 reported that Syria will revert back to winter (standard) time on midnight between Thursday 2009-10-29 and Friday 2009-10-30: http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic) Best regards, Steffen Thorsen - timeanddate.com

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tzdata2009p.tar.gz
by Olson, Arthur David (NIH/NCI) [E] Oct. 26, 2009

Oct. 26, 2009

The file... ftp://elsie.nci.nih.gov/pub/tzdata2009p.tar.gz ...is now available; this reflects the Argentina (including San Luis) changes circulated on the time zone mailing list last week (with the correction from Mariano Absatz). Now that 2009p has all the changes affecting current stamps, I'll be moving on to stuff affecting past and future time stamps. Expect a 2009q next week, but if you're only interested in current stuff, 2009p should do the job. --ado

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Fwd: Pakistan data incorrect?
by Andy Heninger Oct. 25, 2009

Oct. 25, 2009

---------- Forwarded message ---------- From: Syed Masood Ibrahim <coolpak(a)gmail.com> Date: Tue, Oct 13, 2009 at 1:16 PM Subject: Re: Pakistan data incorrect? To: aheninger(a)google.com Cc: marc(a)geonames.org Hello, I am currently located in Pakistan city Lahore. We are still following Pakistan Daylight Savings time. Since I had no idea how to reply back on "GMane" thus sending you an e-mail... Kind Regards Masood Cell: +92-300-8487916 From: Andy Heninger <aheninger <at> google.com> Subject: Pakistan data incorrect?<http://news.gmane.org/find-root.php?message_id=%3cedd53c2d0910121459u1bde6f…> Newsgroups: gmane.comp.time.tz <http://news.gmane.org/gmane.comp.time.tz> Date: 2009-10-12 21:59:27 GMT (20 hours and 1 minute ago) Pinging the Pakistan question again, the current (2009n) data for Pakistan appears to be incorrect for the date for the end of daylight savings time for this year, 2009n says Rule Pakistan 2009 only - Oct 1 0:00 0 - Should be Rule Pakistan 2009 only - Nov 1 0:00 0 - I've independently received reports that Pakistan is still on Daylight time, but if someone located there could confirm it, that would be good. (I'm not there.) And then, of course, the data wants to be updated. Thanks, -- Andy

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FW: Incorrect historial DST rule for Hong Kong
by Olson, Arthur David (NIH/NCI) [E] Oct. 24, 2009

Oct. 24, 2009

I'm forwarding this message from Lee Yiu Chung 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: ��ҫ�� [mailto:lee_yiu_chung@yahoo.com] Sent: Saturday, October 24, 2009 12:40 To: tz(a)lecserver.nci.nih.gov Subject: Incorrect historial DST rule for Hong Kong 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 a 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 think 3:30 is correct. The official DST record for Hong Kong can be obtained from http://www.hko.gov.hk/gts/time/Summertime.htm. Mistakes I found: - DST records before 1946 are missing (note: during 1942-1945 (WWII) Hong Kong is under Japanese occupation, and Hong Kong is put into DST for whole year, which would make HKT "in sync" with Japan. For 1941 you can assume the start/end time is 3:30, which should be a reasonale guess. - The end date of 1952 end time is incorrect. The current tz rule implies the end date is Oct 26, but the actual end date is Oct 25. - There is extra DST period during Dec 30 1973 to 20 Oct 74. (Yes, DST was applied during WINTER, probably for oil crisis.) - No DST from 1980 onwards, but the current rule implies there was DST in 1980. Yahoo!��ṩ�W�ϰ�ȫ��ԣ��η��ڿ�! Ոǰ�� http://hk.promo.yahoo.com/security/ �˽��!

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Incorrect historial DST rule for Hong Kong
by 李耀宗 Oct. 24, 2009

Oct. 24, 2009

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 a 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 think 3:30 is correct. The official DST record for Hong Kong can be obtained from http://www.hko.gov.hk/gts/time/Summertime.htm. Mistakes I found: - DST records before 1946 are missing (note: during 1942-1945 (WWII) Hong Kong is under Japanese occupation, and Hong Kong is put into DST for whole year, which would make HKT "in sync" with Japan. For 1941 you can assume the start/end time is 3:30, which should be a reasonale guess. - The end date of 1952 end time is incorrect. The current tz rule implies the end date is Oct 26, but the actual end date is Oct 25. - There is extra DST period during Dec 30 1973 to 20 Oct 74. (Yes, DST was applied during WINTER, probably for oil crisis.) - No DST from 1980 onwards, but the current rule implies there was DST in 1980. Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多!

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Ireland and Britain consider the idea of joining European Central Time (CET)
by Alexander Krivenyshev Oct. 23, 2009

Oct. 23, 2009

Ireland and Britain consider the idea of joining European Central Time (CET=MEZ) after additional research. Irish Times: Ryan backs research into Ireland joining European central time http://www.breakingnews.ie/ireland/ryan-backs-research-into-ireland-joining- european-central-time-431289.html "... Mr Ryan (Minister for Communications, Energy and Natural Resources) was responding to calls from supermarket tycoon- turned senator Fergal Quinn, who claims his campaign for a permanent switch to European time has support among both Irish and British parliamentarians ... " http://www.irishtimes.com/newspaper/breaking/2009/1022/breaking80.htm or http://www.worldtimezone.com/dst_news/dst_news_uk01.html -------------------- Alexander Krivenyshev (World Time Zone) http://www.worldtimezone.com

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tzdata2009o - southamerica
by Pablo Nazar Oct. 21, 2009

Oct. 21, 2009

Regards, The Argentinian DST time change for Oct-19 was *not* done in the whole country; several Provinces did *not* change the clocks. Is this the reason why tzdata2009o doesn't contain these changes? (just guessing, I need to ask) Thanks -- Pablo Nazar

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Argentina DST change.
by Veiga Jorge Oct. 21, 2009

Oct. 21, 2009

As you may know, the time zone change to DST time in Argentina was not realized last sunday October 18th. Even though the file southamerica file in current tzdata compilation is right, the DST change in my country is only taken yearly under a political presidential decreet (per decreet basis). I hope this information becomes usefull for you. Regards, Jorge Veiga Telefónica de Argentina * mailto:veigaj@telefonica.com.ar

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