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Re: Corrections of zone.tab for CN entries
by yaoz＠vidar.niaaa.nih.gov Sept. 24, 2001

Sept. 24, 2001

> From eggert(a)twinsun.com Mon Sep 24 13:53:11 2001 > > > Date: Mon, 24 Sep 2001 00:25:08 -0400 (EDT) > > From: <yaoz(a)vidar.niaaa.nih.gov> > > > > 1. City names are in old form. Now there is a standard way (pinyin) > > to write it and it should be used; > > The tz database uses the most common spelling in ordinary English. > For example, it uses "Rome", even though "Roma" is the correct Italian > name. When I first added those entries, the pinyin method was not the > most common spelling in English, and my impression is that "Chungking" > and "Kashgar" are still quite commonly used in English, so it's not > entirely clear to me that the time is right to switch to pinyin. > (If I'm incorrect about this, please let me know.) I think "Kashgar" or "Kaxgar" is still widely used but "Chungking" is not. (I was born in "Chongqing", and have never seen people spell it like "Chungking" these days, maybe I can find that spelling in historical books). It seems to me modern English dictionaries published in US have switched to pinyin already. > However, I think it's quite reasonable to support both spellings, and > so I'll add aliases for the pinyin spellings in my next proposed patch. That is better. > > 2. Comments are not quite right. This may due to the historic > > reasons. Because of these problems, when users in China are > > presented a form to pick a time zone, they are very confused. > > How about if we make the following change for now? > > CN +3114+12128 Asia/Shanghai most locations > CN +4545+12641 Asia/Harbin Heilongjiang > CN +2934+10635 Asia/Chungking China mountains > CN +4348+08735 Asia/Urumqi Tibet & most of Xinjiang > CN +3929+07559 Asia/Kashgar Eastern Turkestan The way I submitted to you is following examples of US. That is "time - state (province)". My comments for above are: a. Urumqi is in Xinjiang so it maybe better say "Xinjiang & Tibet". b. Kashgar is also in Xinjiang and there is no such region as "Eastern Turkestan". That region is commonly call "Southern Xinjiang". It seems to me those entries exists because historically, they are in different time zones (as you specified in "asia" file). But I've seen Linux users in China wondering "Why Shanghai, Harbin, etc. are picked up but not Beijing or my city? We always refer to the standard time as 'Beijing Time' after all.". > I'm not sure about using the label "Beijing Time" for all of these > locations. (Don't people say "China time" more often than "Beijing > Time"?) Ideally the five entries would clearly delineate the > boundaries between the five regions of China that have different time > zone histories, but I don't have that information to hand right now. On TV, radio, it is always saying "It is now 20' clock Beijing Time." I haven't heard of "China time" before. BTW, your 'asia' data file is really interesting. I've learned a lot from it. I've never realized that China has used different time zones before. That is why I often get confused when I was travelling in US at first. Now I get used to it, I maybe as well get confused again when I travels back in China. For example, I may end up have to get up at 7am in Shanghai, and get up at 11am in Xinjiang. In 'asia', you are saying before 1980, there are still 5 timezones in China. That doesn't seems to be the case to my experience. My family lived in Chongqing, Shanghai since 60s. I don't recall any time zone change. Let me do some research later. I have a Chinese Encyclopedia CD somewhere. I hope I can find more info on this topic. Thank you very much for your reply. Best regards, Yao Zhang

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FW: Corrections of zone.tab for CN entries
by Olson, Arthur David (NCI) Sept. 24, 2001

Sept. 24, 2001

Yao Zhang is not on the time zone mailing list; direct replies appropriately. --ado -----Original Message----- From: yaoz(a)vidar.niaaa.nih.gov [mailto:yaoz@vidar.niaaa.nih.gov] Sent: Monday, September 24, 2001 12:25 AM To: tz(a)elsie.nci.nih.gov Subject: Corrections of zone.tab for CN entries Hi, Thanks for the effort to maintain the tz packages. Recently, I've seen people complain that in file zone.tab, entries regarding China (CN) are not right. They are: CN +4545+12641 Asia/Harbin north Manchuria CN +3114+12128 Asia/Shanghai China coast CN +2934+10635 Asia/Chungking China mountains CN +4348+08735 Asia/Urumqi Tibet & Xinjiang CN +3929+07559 Asia/Kashgar Eastern Turkestan There are several problems: 1. City names are in old form. Now there is a standard way (pinyin) to write it and it should be used; 2. Comments are not quite right. This may due to the historic reasons. Because of these problems, when users in China are presented a form to pick a time zone, they are very confused. To correct this, the first thing should be noted is that there is only ONE timezone in China. This is well documentd in file asia. Second, to reflect the current practice, zone.tab may be modified as: CN +4545+12641 Asia/Harbin Beijing Time - Heilongjiang CN +3114+12128 Asia/Shanghai Beijing Time CN +2934+10635 Asia/Chongqing Beijing Time - Sichuan CN +4348+08735 Asia/Urumqi Beijing Time - Xinjiang CN +3929+07559 Asia/Kashi Beijing Time - Xinjiang Or just one Beijin Time entry. But I really don't know how zone.tab and asia files are related to each other. So the above changes should only be a reference. Best regards, Yao Zhang

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why?
by SLLFunk＠aol.com Sept. 24, 2001

Sept. 24, 2001

To Whom it may concern: Every year I dread daylight savings time. I understand why this started many years ago but I do not understand why it continues. Everyone I talk to makes the same comments. We would all prefer it to stay light outside later at night and no one minds it being dark in the morning. I think we should eliminate daylight savings time and if we are going to change the clocks at all we should turn them ahead in the fall and back in the spring. It is backwards now! If you are not the correct person to email about this can you please forward this email to that person or send me their email? If this is determined by each individual state, I would be concerned with CT and NY. I would like to start a petition to change this practice and I need to know how many names would be considered significant, if they can be from different states across the country and where to send it. Thank you, Stefanie

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Time zone files
by Warnock, Vance (CRTUSW) Sept. 20, 2001

Sept. 20, 2001

I was wondering if you had discontinued the posting of the timezone files in the /pub directory on the ftp site. I seem to be locked out of the site. Vance Warnock Concert Data Warehouse 719-457-6856 Ph 719-457-6899 Fax 601-6856 CVNS

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Brazil
by Rives McDow Sept. 19, 2001

Sept. 19, 2001

The Brazilian government issued a new decree, No. 3,916, on 9/13/01 announcing this season's dst. The dates are 10/14/01 to 2/17/02. Some states not previously observing dst, notably Alagoas, Ceare, Maranhao, Paraiba, Piaui, Rio Grande do Norte, and Sergipe, will observe dst this year. More detailed information is available on Brazil's government site at: www.presidencia.gov.br under the link Legislaçåo, then Decretos, then 2001, then go to the link for decree 3,916 to read the decree (in Portugese). Rives

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Congrees will decide DST in Mexico
by Jesper Nørgaard Sept. 6, 2001

Sept. 6, 2001

Just yesterday I tripped over an article in the mexican newspaper Reforma (web version) that the court case about who have authority about summer time has been settled. The case was set forward on March 6 by the Capital Chief of Government Andrés Manuel López Obrador (AMLO) stating that these matters fall outside the authority of the mexican president Vicente Fox. Fox sent a counter case April 5 2001 to nullify the initiatives of AMLO. The decision yesterday apparently settles both cases. The link in spanish I found is http://www.reforma.com.mx/nacional/articulo/122976 The unanimous conclusion by the 10 judges of the Supreme Court of Mexico was that these matters must be settled under the authority of the Congress, not by the president of the republic or by local authorities (like AMLO). You might consider this somewhat a technical draw between president Fox and Capital Government Chief AMLO, but this didn't stop AMLO from celebrating the decision and cheering that this puts a stop on Fox' seizing of power in matters that should be settled by the mexican Congress. We will have to wait and see what Congress decides in these matters, for instance if the stipulated leaving DST Last Sunday of September still stands or not, and if exceptions in different states will be allowed (such as Sonora and Baja California Norte). I am sure this is only the beginning of hefty debates in mexican Congress about the time zone matters. I will return with more material if I found some, about how this case develops. Regards, Jesper Nørgaard Welen 2001-09-06 Jesper Nørgaard Welen Email: jnorgard(a)Prodigy.Net.mx Project Leader (Líder de Proyecto) Software CIMMYT - Centro Internacional de Mejoramiento de Maíz y Trigo Dirección: CIMMYT Int. c/o Jesper Nørgaard Km. 45, Carretera México-Veracruz El Batán Texcoco, Edo. de México CP 56130 MEXICO Tel.: +52 (5) 58-04-20-04 ext. 1374 Fax: +52 (5) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 CIMMYT home page: http://cimmyt.cgiar.org Check out my free program World Time Explorer: http://www20.Brinkster.com/timezone50/index.htm http://tz.freewebsites.com/index.htm

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RTRS-Supreme Court kills Mexico City's daylight savings
by Scott Harrington Sept. 5, 2001

Sept. 5, 2001

MEXICO CITY, Sept 4 (Reuters) - Mexico's Supreme Court on Tuesday declared that daylight savings was unconstitutional in Mexico City, creating the possibility the capital will be in a different time zone from the rest of the nation next year. The high court ruled President Vicente Fox usurped powers from Congress when he decreed Mexicans' clocks had to move ahead an hour on May 1. But because the challenge to the decree was filed only by Mexico City's government, the Supreme Court's ruling only applies to the capital's Federal District, home to over 9 million and part of a greater urban sprawl of some 18 million. The Supreme Court's ruling takes effect at 2:00 a.m. (0800 GMT) on Sept. 30, when Mexico is scheduled to revert to standard time. "This is so residents of the Federal District are not subject to unexpected time changes," a statement from the court said. Nevertheless, if Congress does not reenact daylight savings in the capital, or if it is not scrapped in the rest of the country, Mexico City might find itself in its own time zone next Spring when clocks change anew. Mexico adopted the time change in 1996, in order to save electricity and to put the country in tune with its northern neighbor and biggest trading partner, the United States. But daylight savings has never been popular here. Many argue it forces children to walk to school in the dark. In congressional debates last year, one legislator even argued that the clock change inhibited morning sex. ((Mexico City newsroom +525 282 7153 mexicocity.newsroom(a)reuters.com)) Wednesday, 5 September 2001 00:13:13 RTRS [nN04205687]

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Congress will decide DST in Mexico
by Jesper Nørgaard Sept. 5, 2001

Sept. 5, 2001

Just today I tripped over an article in the mexican newspaper Reforma (web version) that the court case about who have authority about summer time has been settled. The case was set forward on March 6 by the Capital Chief of Government Andrés Manuel López Obrador (AMLO) stating that these matters fall outside the authority of the mexican president Vicente Fox. Fox sent a counter case April 5 2001 to nullify the initiatives of AMLO. The decision yesterday apparently settles both cases. The link in spanish I found is http://www.reforma.com.mx/nacional/articulo/122976 The unanimous conclusion by the 10 judges of the Supreme Court of Mexico was that these matters must be settled under the authority of the Congress, not by the president of the republic or by local authorities (like AMLO). You might consider this somewhat a technical draw between president Fox and Capital Government Chief AMLO, but this didn't stop AMLO from celebrating the decision and cheering that this puts a stop on Fox' seizing of power in matters that should be settled by the mexican Congress. We will have to wait and see what Congress decides in these matters, for instance if the stipulated leaving DST Last Sunday of September still stands or not, and if exceptions in different states will be allowed (such as Sonora and Baja California Norte). I am sure this is only the beginning of hefty debates in mexican Congress about the time zone matters. I will return with more material if I found some, about how this case develops. Regards, Jesper Nørgaard Welen 2001-09-05 Jesper Nørgaard Welen Email: jnorgard(a)Prodigy.Net.mx Project Leader (Líder de Proyecto) Software CIMMYT - Centro Internacional de Mejoramiento de Maíz y Trigo Dirección: CIMMYT Int. c/o Jesper Nørgaard Km. 45, Carretera México-Veracruz El Batán Texcoco, Edo. de México CP 56130 MEXICO Tel.: +52 (5) 58-04-20-04 ext. 1374 Fax: +52 (5) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 CIMMYT home page: http://cimmyt.cgiar.org Check out my free program World Time Explorer: http://www20.Brinkster.com/timezone50/index.htm http://tz.freewebsites.com/index.htm

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IERS Message No. 14: Fall AGU/Special Session
by central_bureau＠iers.org Aug. 30, 2001

Aug. 30, 2001

*************************************************************************** IERS Message No. 14 August 30, 2001 *************************************************************************** Fall AGU/Special Session: Interaction between the Solid Earth and its Fluid Envelope: Insights via Earth Rotation and Mass Redistribution Studies Dear Colleagues: We are convening a special session ( G05: Interaction between the Solid Earth and its Fluid Envelope: Insights via Earth Rotation and Mass Redistribution Studies ) at the Fall 2001 AGU meeting, December 10-14 in San Francisco, as described below. We are soliciting papers on these topics. Please submit your abstract according to the instructions in the AGU website http://www.agu.org and send me a courtesy copy. The deadlines for abstract are August 31 for mail and September 6 for on-line submittals. AGU allows only one first author contributing paper. Your AGU membership number (or that of a sponsor) and payment of abstract fee ($50 for credit card and $60 for check) are required. Thank you for your consideration. Regards, Jean Dr. Jean O. Dickey Principal Member of the Technical Staff Supervisor, Space Geodetic Science & Applications Group Jet Propulsion Laboratory/Caltech Mail Stop 238-332 4800 Oak Grove Dr. Pasadena, CA 91109-8099 Office: +1 818-354-3235 Fax: 818-393-6890 E-mail: jean.o.dickey(a)jpl.nasa.gov G05: Interaction between the Solid Earth and its Fluid Envelope: Insights via Earth Rotation and Mass Redistribution Studies ---------------------------------------------------------------- **** Joint with H (hydrology) A (atmospheres) OS (ocean sciences) T (tectonophysics) SIP (snow, ice, permafrost) GP (geomagnetism) DI (study of the Earth's Deep Interior) Index terms: 1241 Rotational variations (geodesy) 1223 Ocean/Earth/atmosphere interactions (geodesy) 1213 Earth's interior-dynamics (geodesy) 3300 Meteorology and atmospheric dynamics 1655 Water cycles (global change & hydrology) Jean O. Dickey, Olivier de Viron, Geoffrey Blewitt, and Benjamin F. Chao The Earth is a dynamic system: it has a fluid, mobile atmosphere and oceans, a continually changing distribution of ice, snow, and groundwater, a fluid core undergoing hydromagnetic motion, a mantle undergoing both thermal convection and rebound from glacial loading of the last ice age, and mobile tectonic plates. Both the moment of inertia changes and the motion affect a number of global geodynamical quantities, including Universal Time, length-of-day, polar motion, and nutation (collectively referred to as Earth Rotation or Earth Orientation). Highly accurate observations of Earth Orientation provide a unique and truly global measure of natural and man-made changes in the atmosphere, oceans, and interior of the Earth on a broad variety of timescales; in addition, mass redistribution within the Earth produces variations in the Earth's gravitational field (including geocenter) which can thus be used to better understand the processes that move mass within the Earth, and on and above its surface. This session will address the implications of Earth orientation variations, and mass redistribution (including geocenter, loading, and time variable gravity), particularly as they apply to the solid Earth, ocean and hydrosphere, cryosphere, atmosphere and the interactions between the various components of the Earth system. We welcome presentations on prospects for improving our knowledge of mass redistribution from space missions including GRACE (scheduled to launch in November 2001), and presentations providing interdisciplinary insight on what such measurements might imply for our understanding of the water cycle, interactions between Earth's various spheres, and global climate change. We encourage contributions on the latest models from the areas of mass redistribution, including polar snow and ice models, continental-scale hydrology, and models of mass transport in the oceans and atmosphere. Convenors: Jean O. Dickey Mail-stop 238-331, Jet Propulsion Laboratory, Oak Grove Drive, 4800, 91108 Pasadena, CA.; e- mail: jean.o.dickey(a)jpl.nasa.gov; phone: 818-354- 3235; fax: 818-393-6890 Olivier de Viron Royal Observatory of Belgium, 3 Avenue Circulaire. B-1180 Brussels, Belgium; email: o.deviron(a)oma.be; phone: +32 2 373 03 12; fax: +32 2 374 98 22 Geoffrey Blewitt University of Nevada, Reno Mail Stop 178 Reno Nevada 89557 Tel: 775-784-6691 x171 Fax: 775-784-1709 Email: gblewitt(a)unr.edu Benjamin F. Chao Space Geodesy Branch, Code 926 NASA's Goddard Space Flight Center Greenbelt Maryland 20771 Tel: 302-614-6104 Fax: 301-614-6099 Email: chao(a)bowie.gsfc.nasa.gov *************************************************************************** IERS Messages are edited and ditributed by the IERS Central Bureau. To subscribe or unsubscribe, please write to <central_bureau(a)iers.org>. Archives: http://www.iers.org/iers/publications/messages/ ***************************************************************************

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THE END of the first unix gigasecond IS NEAR
by Scott Harrington Aug. 29, 2001

Aug. 29, 2001

Is anyone concerned about the rollover of time_t from 9 digits to 10? This is happening at 2001-09-09 01:46:40 GMT, which is next Saturday night, or evening in the US. Check your code for S1G bugs, such as ordering timestamps using textual rather than numeric comparisons, or assuming that time_t columns require no more than 9 characters. I have set an alarm but I plan to celebrate the dawn of the new gigasecond quietly. I once made the mistake of alerting my (non-geek) friends that a leap second had just occurred ...

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