April 2009 - tz - lists.iana.org

permatime.com - a way of representing times as urls (using the tz database)
by Tim Diggins April 23, 2009

April 23, 2009

Hi - just wanted to firstly, let you know of a simple web application, http://permatime.com , that we launched a while ago, which relies on the tz database info (via the ruby tzinfo library). Many thanks to the tz database maintainers (and also to ruby's tzinfo maintainers)! Also... I was wondering if anyone had any ideas if there is a public domain source for mapping city names (and single timezone countries) to timezones? We have manually added a few (including European single timezone countries and some prominent Asian cities) as aliases of timezones, but are always getting requests for a more comprehensive set of cities. kind regards Tim FYI: Permatime.com provides a way of representing times as urls, or "permatimes". Imagine you want to announce an event with participants across different time zones. Simply set the time, in your time zone, and permatime.com will generate a link for it. If you share this link with others, they will see that time in their own local time zone (and any other zones they choose). Use a permatime link to arrange a phone call, timestamp a blog post, announce a webinar... Practical permatime examples • http://permatime.com/US/Central/2008-12-04/11:00/37signals_live?link=http:/… • http://permatime.com/US/Central/2009-01-12/11:00/Next_teleconference

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America/Caracas
by Mark Jennings April 23, 2009

April 23, 2009

Hi, # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Caracas -4:27:44 - LMT 1890 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? -4:30 - VET 1965 # Venezuela Time -4:00 - VET 2007 Dec 9 03:00 -4:30 - VET This is what I get when encoding with zic, 0000000 5a54 6669 0000 0000 0000 0000 0000 0000 0000010 0000 0000 0000 0300 0000 0300 0000 1800 0000020 0000 0300 0000 0300 0000 0800 1e93 3c2c <- timecnt, typecnt, charcnt 0000030 98f6 48ec 5b47 8792 0201 ff01 c1ff 0044 0000040 ff00 c0ff 00b8 ff04 c7ff 00c0 4304 544d 0000050 5600 5445 0400 58b2 0000 0000 0501 eca4 0000060 0001 0000 0702 1f86 0082 0000 0903 5367 0000070 0003 0000 0b04 8648 0084 0000 0d05 0b2b 0000080 0085 0000 0f06 3f0c 0006 0000 1007 72ed 0000090 0087 0000 1208 a6ce 0008 0000 1509 ca9f 00000a0 0089 0000 170a fe80 000a 0000 190b 3162 00000b0 008b 0000 1d0c ea25 000c 0000 210d e5da 00000c0 000d 0000 250e 9d9e 008e 0000 270f d17f 00000d0 000f 0000 2a10 f550 0090 0000 2c11 2932 00000e0 0011 0000 2e12 5c13 0092 0000 3013 24e7 00000f0 0013 0000 3314 48b8 0094 0000 3615 108c 0000100 0015 0000 4316 1bb7 0096 0000 4917 075c 0000110 0097 0000 0018 0000 0000 0000 Why is timecnt 3 ? I have written my own parser, but because timecnt = 3, it is not recognising that the offset should be -4:30. Many thanks Mark

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proposed time zone package change to africa file for Cairo
by Arthur David Olson April 23, 2009

April 23, 2009

Below is a proposed change (thanks to Petr Machata) for the end of DST in Egypt in 2009 and forward. If not problems are found, this change should show up in the ftpable version a week from today. --ado ------- africa ------- *** /tmp/geta10010 Mon Apr 20 16:34:24 2009 --- /tmp/getb10010 Mon Apr 20 16:34:24 2009 *************** *** 1,4 **** ! # @(#)africa 8.18 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)africa 8.19 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 236,243 **** # unless discontinued, next DST may end Thursday 28 August 2008. # From Paul Eggert (2007-08-17): # For lack of better info, assume the new rule is last Thursday in August. - Rule Egypt 2008 max - Aug lastThu 23:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Cairo 2:05:00 - LMT 1900 Oct 2:00 Egypt EE%sT --- 236,282 ---- # unless discontinued, next DST may end Thursday 28 August 2008. # From Paul Eggert (2007-08-17): # For lack of better info, assume the new rule is last Thursday in August. + # From Petr Machata (2009-04-06): + # The following appeared in Red Hat bugzilla[1] (edited): + # + # > $ zdump -v /usr/share/zoneinfo/Africa/Cairo | grep 2009 + # > /usr/share/zoneinfo/Africa/Cairo Thu Apr 23 21:59:59 2009 UTC =3D Thu = + # Apr 23 + # > 23:59:59 2009 EET isdst=3D0 gmtoff=3D7200 + # > /usr/share/zoneinfo/Africa/Cairo Thu Apr 23 22:00:00 2009 UTC =3D Fri = + # Apr 24 + # > 01:00:00 2009 EEST isdst=3D1 gmtoff=3D10800 + # > /usr/share/zoneinfo/Africa/Cairo Thu Aug 27 20:59:59 2009 UTC =3D Thu = + # Aug 27 + # > 23:59:59 2009 EEST isdst=3D1 gmtoff=3D10800 + # > /usr/share/zoneinfo/Africa/Cairo Thu Aug 27 21:00:00 2009 UTC =3D Thu = + # Aug 27 + # > 23:00:00 2009 EET isdst=3D0 gmtoff=3D7200 + # + # > end date should be Thu Sep 24 2009 (Last Thursday in September at 23:59= + # :59) + # > http://support.microsoft.com/kb/958729/ + # + # timeanddate[2] and another site I've found[3] also support that. + # + # [1] <a href="https://bugzilla.redhat.com/show_bug.cgi?id=3D492263"> + # https://bugzilla.redhat.com/show_bug.cgi?id=3D492263 + # </a> + # [2] <a href="http://www.timeanddate.com/worldclock/clockchange.html?n=3D53"> + # http://www.timeanddate.com/worldclock/clockchange.html?n=3D53 + # </a> + # [3] <a href="http://wwp.greenwichmeantime.com/time-zone/africa/egypt/"> + # http://wwp.greenwichmeantime.com/time-zone/africa/egypt/ + # </a> + + # From Arthur David Olson (2009-04-20): + # In 2009 (and for the next several years), Ramadan ends before the fourth + # Thursday in September; Egypt is expected to revert to the last Thursday + # in September. + Rule Egypt 2008 only - Aug lastThu 23:00s 0 - + Rule Egypt 2009 max - Sep lastThu 23:00s 0 - + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Cairo 2:05:00 - LMT 1900 Oct 2:00 Egypt EE%sT

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DST started in Pakistan
by Babar Tareen April 15, 2009

April 15, 2009

Hi DST started in Pakistan on 15th April 12:00 am. Please update the database. Here is a link to news paper news about the time change. http://www.dawn.com/wps/wcm/connect/dawn-content-library/dawn/news/pakistan… Thanks

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tzdata2009f.tar.gz
by Olson, Arthur David (NIH/NCI) [E] April 13, 2009

April 13, 2009

The file... ftp://elsie.nci.nih.gov/pub/tzdata2009f.tar.gz ...is now available; this reflects the change to the "asia" file circulated last week on the time zone mailing list to correct DST in Pakistan. --ado

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proposed time zone package change for Pakistan
by Arthur David Olson April 10, 2009

April 10, 2009

There's a proposed change to the "asia" file below to update Pakistan; if no one sees problems with it, expect it in the ftp version this coming Monday. I'll hold off on updates to Palestine and Jordan until folks have had a chance to weigh in on the question of whether to use 24:00 in the rules (which would rile up pre-1998 versions of zic). --ado ------- asia ------- *** /tmp/geta26809 Fri Apr 10 11:01:05 2009 --- /tmp/getb26809 Fri Apr 10 11:01:05 2009 *************** *** 1,4 **** ! # @(#)asia 8.29 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)asia 8.30 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 1589,1599 **** --- 1589,1634 ---- # http://dailymailnews.com/200808/28/news/dmbrn03.html # </a> + # From Alexander Krivenyshev (2009-04-08): + # Based on previous media reports that "... proposed plan to + # advance clocks by one hour from May 1 will cause disturbance + # to the working schedules rather than bringing discipline in + # official working." + # <a href="http://www.thenews.com.pk/daily_detail.asp?id=171280"> + # http://www.thenews.com.pk/daily_detail.asp?id=171280 + # </a> + # + # recent news that instead of May 2009 - Pakistan plan to + # introduce DST from April 15, 2009 + # + # FYI: Associated Press Of Pakistan + # April 08, 2009 + # Cabinet okays proposal to advance clocks by one hour from April 15 + # <a href="http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&I…"> + # http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&I… + # </a> + # + # or + # + # <a href="http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html"> + # http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html + # </a> + # + # .... + # The Federal Cabinet on Wednesday approved the proposal to + # advance clocks in the country by one hour from April 15 to + # conserve energy" + + # From Arthur David Olson (2009-04-10): + # Assume for now that Pakistan will end DST in 2009 as it did in 2008. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 - Rule Pakistan 2008 only - Jun 1 0:00 1:00 S Rule Pakistan 2008 only - Nov 1 0:00 0 - + Rule Pakistan 2009 only - Apr 15 0:00 1:00 S + Rule Pakistan 2009 only - Nov 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Karachi 4:28:12 - LMT 1907 5:30 - IST 1942 Sep

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Jordan definition problem
by Jesper Nørgaard April 10, 2009

April 10, 2009

There is a subtle problem in the Tzdata2009e file about Jordan: > The Council of Ministers decided in 2002 to adopt the principle of timely > submission of the summer at 60 minutes as of midnight on the last Thursday > of the month of March of each year. The problem is quite similar to the problem of the San Luis timezone in Argentina. The rule is this time Last Thursday in March at midnight, but has been implemented in 2009e as Last Friday in March, which is not the same. The problem occurs first in 2005, where timeanddate.com starts DST Thursday the 31.st. of March at 23:59:59, while the rules of 2009e will impose DST to start Friday the 25.th. of March 2005 at 0:00. In the tz database there are quite a lot of midnight-rules, however all have been end of DST thus it was possible to say 23:00s instead of 24:00. I wonder if there is a problem making the following definition: > ! Rule Jordan 2002 max - Mar lastThu 24:00s 1:00 S If there is, it might be necessary to hand-code the dates where Last Thursday of March is the 31.st. Regards, Jeser Nørgaard Welen

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Pakistan new DST info
by Jocelyn Brial April 10, 2009

April 10, 2009

Hello, I am taking followup from Gerhard Niklasch regarding 2 customers ( Nokia and Motorola ) requesting IDR for the new TZ in Pakistan . One of these customers informed us that the 15 April date was finally approved by Pakistan government : http://www.timeanddate.com/news/time/pakistan-daylight-saving-2009.html http://www.dailytimes.com.pk/default.asp?page=2009%5C04%5C09%5Cstory_9-4-20… We therefore need to provide patches for all currently supported versions of Solaris and do it soon. Please let me know if I need to open a bug and/or escalate to Sustaining ( ENG-SW-UTILITIES queue ? ) TIA Jocelyn

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Pakistan plan to introduce DST from April 15, 2009
by Alexander Krivenyshev April 8, 2009

April 8, 2009

Based on previous media reports that "... proposed plan to advance clocks by one hour from May 1 will cause disturbance to the working schedules rather than bringing discipline in official working." http://www.thenews.com.pk/daily_detail.asp?id=171280 recent news that instead of May 2009 - Pakistan plan to introduce DST from April 15, 2009 FYI: Associated Press Of Pakistan April 08, 2009 Cabinet okays proposal to advance clocks by one hour from April 15 http://www.app.com.pk/en_/index.php? option=com_content&task=view&id=73043&Itemid=1 or http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html .... “The Federal Cabinet on Wednesday approved the proposal to advance clocks in the country by one hour from April 15 to conserve energy" Alexander Krivenyshev, http://www.worldtimezone.com

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Palestine differences
by Jesper Nørgaard April 8, 2009

April 8, 2009

There seems to be some differences between the encoding of the Palestine Rule in he TZ database with Steffen Thorsens website. If Steffen is taken as authority, the following changes should be made: -Rule Palestine 2006 only - Sep 22 0:00 0 - +Rule Palestine 2006 only - Sep 22 2:00 0 - -Rule Palestine 2006 2008 - Apr 1 0:00 1:00 S +Rule Palestine 2006 2007 - Apr 1 0:00 1:00 S -Rule Palestine 2009 max - Mar lastFri 0:00 1:00 S +Rule Palestine 2008 max - Mar lastFri 0:00 1:00 S -Rule Palestine 2009 max - Sep lastMon 2:00 0 - +Rule Palestine 2009 max - Sep lastMon 0:00 0 - The last rule change is especially controversial, since it has not happened yet and we only have a non-authoritative web article to support this. Actually I would say the Olson guess seems more likely from my own subjective view, but we may not care yet when there is no authoritative information. Regards, Jesper Nørgaard Welen

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