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proposed time zone package changes (antarctica & tz-link.htm)
by Arthur David Olson Nov. 5, 2009

Nov. 5, 2009

So much for being caught up. At the end of this message you'll find proposed changes to the time zone package; here's the executive summary; the "antarctica" file has updates to thee local times of Australian research stations and there are two additions to the "tz-link.htm" file. I plan to update the ftp distribution on 2009-11-09 barring any problems. --ado ------- antarctica ------- *** /tmp/geta12437 Wed Nov 4 10:01:04 2009 --- /tmp/getb12437 Wed Nov 4 10:01:04 2009 *************** *** 1,5 **** # <pre> ! # @(#)antarctica 8.5 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)antarctica 8.6 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 80,94 **** # Davis, Vestfold Hills, -6835+07759, since 1957-01-13 # (except 1964-11 - 1969-02) # Mawson, Holme Bay, -6736+06253, since 1954-02-13 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Antarctica/Casey 0 - zzz 1969 ! 8:00 - WST # Western (Aus) Standard Time Zone Antarctica/Davis 0 - zzz 1957 Jan 13 7:00 - DAVT 1964 Nov # Davis Time 0 - zzz 1969 Feb ! 7:00 - DAVT Zone Antarctica/Mawson 0 - zzz 1954 Feb 13 ! 6:00 - MAWT # Mawson Time # References: # <a href="http://www.antdiv.gov.au/aad/exop/sfo/casey/casey_aws.html"> # Casey Weather (1998-02-26) --- 80,117 ---- # Davis, Vestfold Hills, -6835+07759, since 1957-01-13 # (except 1964-11 - 1969-02) # Mawson, Holme Bay, -6736+06253, since 1954-02-13 + + # From Steffen Thorsen (2009-03-11): + # Three Australian stations in Antarctica have changed their time zone: + # Casey moved from UTC+8 to UTC+11 + # Davis moved from UTC+7 to UTC+5 + # Mawson moved from UTC+6 to UTC+5 + # The changes occurred on 2009-10-18 at 02:00 (local times). + # + # Government source: (Australian Antarctic Division) + # <a href="http://www.aad.gov.au/default.asp?casid=37079"> + # http://www.aad.gov.au/default.asp?casid=37079 + # </a> + # + # We have more background information here: + # <a href="http://www.timeanddate.com/news/time/antarctica-new-times.html"> + # http://www.timeanddate.com/news/time/antarctica-new-times.html + # </a> + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Antarctica/Casey 0 - zzz 1969 ! 8:00 - WST 2009 Oct 18 2:00 ! # Western (Aus) Standard Time ! 11:00 - CAST # Casey Time Zone Antarctica/Davis 0 - zzz 1957 Jan 13 7:00 - DAVT 1964 Nov # Davis Time 0 - zzz 1969 Feb ! 7:00 - DAVT 2009 Oct 18 2:0 ! 5:00 - DAVT Zone Antarctica/Mawson 0 - zzz 1954 Feb 13 ! 6:00 - MAWT 2009 Oct 18 2:00 ! # Mawson Time ! 5:00 - MAWT # References: # <a href="http://www.antdiv.gov.au/aad/exop/sfo/casey/casey_aws.html"> # Casey Weather (1998-02-26) ------- tz-link.htm ------- *** /tmp/geta12472 Wed Nov 4 10:01:36 2009 --- /tmp/getb12472 Wed Nov 4 10:01:36 2009 *************** *** 18,24 **** <body> <h1>Sources for Time Zone and Daylight Saving Time Data</h1> <address> ! @(#)tz-link.htm 8.22 </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 8.23 </address> <p> This file is in the public domain, so clarified as of *************** *** 124,129 **** --- 124,137 ---- These are listed roughly in ascending order of complexity and fanciness. </p> <ul> + <li> + <a href="http://permatime.com"> + Permatime</a> + is a service for generating and viewing links that refer to a + particular point in time and can be displayed in multiple timezones. + It uses the ruby tzinfo gem. + (From Tim Diggins, 2009-11-03.) + </li> <li><a href="http://twiki.org/cgi-bin/xtra/tzdatepick.html">Date and Time Gateway</a> lets you see the <code>TZ</code> values directly.</li> <li><a *************** *** 297,302 **** --- 305,316 ---- <li><a href="http://worldtimeexplorer.com/">World Time Explorer</a> is a Microsoft Windows program.</li> + <li> + <a href="http://www.toriasoft.com"> + WorldClock for Windows and Windows Mobile</a> + lets users "see the time in up to 25 locations in the world at once." + (From Hans Nieuwenhuis, 2009-11-02.) + </li> </ul> <h2>Other time zone databases</h2> <ul>

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Time Zone Changes in Antarctica
by Steffen Thorsen Nov. 3, 2009

Nov. 3, 2009

Three Australian stations in Antarctica have changed their time zone: Casey moved from UTC+8 to UTC+11 Mawson moved from UTC+7 to UTC+5 Mawson moved from UTC+6 to UTC+5 The changes occurred on 2009-10-18 at 02:00 (local times). Government source: (Australian Antarctic Division) http://www.aad.gov.au/default.asp?casid=37079 We have more background information here: http://www.timeanddate.com/news/time/antarctica-new-times.html Best regards, Steffen Thorsen - timeanddate.com

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FW: Can you add a WorldClock program to the http://www.twinsun.com/tz/tz-link.htm website?
by Olson, Arthur David (NIH/NCI) [E] Nov. 2, 2009

Nov. 2, 2009

I'm forwarding this message from Hans Nieuwenhuis, 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: Sent: Friday, October 30, 2009 11:15 To: tz(a)lecserver.nci.nih.gov Subject: Can you add a WorldClock program to the http://www.twinsun.com/tz/tz-link.htm website? Dear reader, I don't know whether this is the right place to ask, but I couldn't find another way. If this is not the right place, then please accept my apologies. I've used the tz time zone database to build a WorldClock for Windows and for Windows Mobile. You can have a look at them on my website: http://www.toriasoft.com/ I would appreciate it very much if you would add these 2 WorldClock programs to your list of "Other tz-based time zone software" on http://www.twinsun.com/tz/tz-link.htm Kind regards and thanks in advance, Hans Nieuwenhuis www.toriasoft.com

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2009q
by Olson, Arthur David (NIH/NCI) [E] Nov. 2, 2009

Nov. 2, 2009

The files... ftp://elsie.nci.nih.gov/pub/tzcode2009q.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2009q.tar.gz ...are now available; these reflect the changes circulated last week on the time zone mailing list (with two corrections as reported by Eric Muller and Philip Newton). --ado

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some errors found for Hong Kong Summer Time (1973/1974)
by King-On Yeung Nov. 2, 2009

Nov. 2, 2009

Hi, from Hong Kong Observatory ( http://www.weather.gov.hk/gts/time/Summertime.htm ), 30 Dec 73 to 20 Oct 74 is "summer time" period. While the enties in tzcode "asia" files: Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S Rule HK 1965 1977 - Oct Sun>=16 3:30 0 - Would you help to check if the entries in tzcode should be updated accordingly? thx -- Regards, King-On Yeung

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Xinjiang Time
by Luther Ma Nov. 1, 2009

Nov. 1, 2009

I am new to the list but would like to make a proposal for Xinjiang time. I have looked through previous posts about Xinjiang and would agree with the paradoxical statements that: 1. All of China is on one time zone, (Zhe Su Jun 26, 2006) and 2. Xinjiang has another, governmentally recognized time zone. (Thomas S. Mullaney Feb 12, 2008) 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.) Because there presently is no time localization for a large Uyghur population who set their watches to Xinjiang time, I propose that the last line of the "Asia/Urumqi" and "Asia/Kashgar" entries be changed so that the entries read: Zone Asia/Urumqi 5:50:20 - LMT 1928 # or Urumchi 6:00 - URUT 1980 May # Urumqi Time 6:00 - XJT #Xinjiang Time and Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar 5:30 - KAST 1940 # Kashgar Time 5:00 - KAST 1980 May 6:00 - XJT #Xinjiang Time (I did not include the PRC rule. 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.) This proposed correction would reflect usage for at least the last thirty years and would be a great help to Uyghurs who are becoming increasingly technologically sophisticated. (They routinely use Uyghur localized operating systems and localized cell phones.) XJT would also be preferable to URUT as this reflects standard usage as well as correctly reflects the time zone for an area (in this case, the autonomous region) and not just a city. I don't believe that this would cause the slightest difficulty for ethnic Han population, as they would typically set their phones and computer time to Beijing. Some may only be a bit surprised that a separate Xinjiang exists. I, myself, speak from being present in Xinjiang off and on since the 80's; from my own observations as well as from asking informants who came from outlying areas. Unfortunately, Internet documentation of the actual law is presently hard to get. Immediately after the events of earlier this summer, Internet in Xinjiang was cut and is still out, so many Xinjiang sites are unavailable. Below, though, is an example of an official website using of Urumqi time. The first few lines of the Google translation of http://www.fjysgl.gov.cn/show.aspx?id=2379&cid=39 (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, .... > -Lude (Luther) Ma PS This request was actually prompted by tzdata being updated for summer time in Dhaka. Previously Asia/Dhaka was a good work-around for for me and others not having a proper Xinjiang time. The update has caused me to ask if there might be a better solution.

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Syria end of DST error in tz
by Thomas Nash Oct. 31, 2009

Oct. 31, 2009

Syria went to winter time this year at Midnight Thursday night (October 29-30) **not** Saturday night Oct 31-Nov1 as the tz data base presently indicates. We were in Damascus and had a flight on Friday morning -- so we had to get this right. Emirate airlines appeared to know about this at least several months in advance as they had adjusted their flight schedules for this date when we bought tickets in June. Probably the reason for this change is that Friday is the day off, equivalent of our Sunday in Islamic countries. This may become common in other Islamic countries. Regards from Ajman in the UAE... Tom Nash Thomas Nash home: +1 415 826 0165 4014 21st Street cell: +1 415 559 0718 San Francisco, CA 94114 USA nash(a)ligo.caltech.edu nash(a)fnal.gov tomnash(a)sbcglobal.net AIM: thomasnash(a)mac.com

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Can you add a WorldClock program to the http://www.twinsun.com/tz/tz-link.htm website?
by Hans Nieuwenhuis Oct. 30, 2009

Oct. 30, 2009

Dear reader, I don't know whether this is the right place to ask, but I couldn't find another way. If this is not the right place, then please accept my apologies. I've used the tz time zone database to build a WorldClock for Windows and for Windows Mobile. You can have a look at them on my website: http://www.toriasoft.com/ I would appreciate it very much if you would add these 2 WorldClock programs to your list of "Other tz-based time zone software" on http://www.twinsun.com/tz/tz-link.htm Kind regards and thanks in advance, Hans Nieuwenhuis www.toriasoft.com

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FW: proposed time zone package changes
by Olson, Arthur David (NIH/NCI) [E] Oct. 29, 2009

Oct. 29, 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: 李耀宗 [mailto:leeyc0@hkbn.net] Sent: Thursday, October 29, 2009 9:49 To: lee_yiu_chung(a)yahoo.com Cc: tz(a)lecserver.nci.nih.gov Subject: Re: proposed time zone package changes But I think it is better not to change the timezone name to JST during Japanese occupation. lee_yiu_chung(a)yahoo.com 提到: > 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 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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