- tz - lists.iana.org

FW: tztab entries (forwarded with permission)
by Olson, Arthur David Aug. 13, 1997

Aug. 13, 1997

---------- From: Dave Kelly[SMTP:dkelly@lhr-sys.DHL.COM] Sent: Monday, August 11, 1997 2:30 PM To: ibilling(a)lhr-sys.DHL.COM; ado(a)elsie.nci.nih.gov Subject: tztab entries Hello There I wonder if you might be able to help... We are building a reference database in which one of the attributes of a "site" is the timezone in which the site is located. We decided to use the HP-UX timezone name from the tztab file as a reference to a timezone since it seemed as good as anything else. We have now realised that the entries we have as default in tztab are far from complete. Do you know where we could get hold of a tztab file which has a complete list of entries? We are only interested in modern (future) entries, but we are interested in the whole global set. We do not want to maintain multiple tztab entries for countries which use the same zone - i.e. we want to have a single entry for all the countries which use CET/CEST. I have found the tzcode and tzdata files but these do not link to a particular "name" of a timezone such as GMT0BST or CET-1CEST. It would obviously make sense to use something that already exists. Hope you can help or offer some advice Thank you and regards Dave Kelly DHL Worldwide Express dkelly(a)lhr-sys.dhl.com

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Aug. 12, 1997

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Millennium update: Caroline Islands to be renamed
by Eric Ulevik Aug. 12, 1997

Aug. 12, 1997

>From a story in the Sydney Morning Herald 12 August 1997: * The Government of Kiribati is going to rename the Carolines to Millennium * The Old Royal Observatory in Greenwich says the Millennium arrives first at the Balleny Islands off Antartica - 2h2m before the Carolines Regards, Eric Ulevik

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FW: Eighth EC Directive approved
by Olson, Arthur David Aug. 6, 1997

Aug. 6, 1997

---------- From: peter@aldie.co.uk[SMTP:peter@aldie.co.uk] Sent: Wednesday, August 06, 1997 2:38 PM To: tz(a)elsie.nci.nih.gov Subject: Eighth EC Directive approved I now have a copy of the eighth summer time directive, as published in the Official Journal. It is titled: Eighth Directive 97/44/EC of the European Parliament and of the Council of 22 July 1997 on summer-time arrangements. It runs for 4 years, 1998--2001, and confirms the current rules of last Sunday in March to last Sunday in October, ie: 1998: 29 March to 25 October 1999: 28 March to 31 October 2000: 26 March to 29 October 2001: 25 March to 28 October (it does give the actual dates). The directive does not apply in overseas territories of the Memmber States. It says the Commision should produce a proposal for 2002 and beyond by 1 Jan 2000 and this should be adopted by 1 Jan 2001. I doubt that this will happen though. This Eighth Directive was supposed to be adopted by 1 Jan 1997 and I doubt that summer-time arrangements will be top of the Commission's priority list as the new millennium dawns. There is no mention of the French desire to abandon the whole idea. France has had a change of government recently so maybe it will be quietly dropped. More and more EU stuff is now on the WWW but I can't find this yet. It may be that Directives won't appear in order to make you buy the Official Journal. It may appear at the European Parliament's site (http://www.europarl.eu.int/, select language, Subject Index, Texts Adopted: Provisional edition, and search) but it only goes up to 18 July at present. Peter Ilieve peter(a)aldie.co.uk

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Eighth EC Directive approved
by peter＠aldie.co.uk Aug. 6, 1997

Aug. 6, 1997

I now have a copy of the eighth summer time directive, as published in the Official Journal. It is titled: Eighth Directive 97/44/EC of the European Parliament and of the Council of 22 July 1997 on summer-time arrangements. It runs for 4 years, 1998--2001, and confirms the current rules of last Sunday in March to last Sunday in October, ie: 1998: 29 March to 25 October 1999: 28 March to 31 October 2000: 26 March to 29 October 2001: 25 March to 28 October (it does give the actual dates). The directive does not apply in overseas territories of the Memmber States. It says the Commision should produce a proposal for 2002 and beyond by 1 Jan 2000 and this should be adopted by 1 Jan 2001. I doubt that this will happen though. This Eighth Directive was supposed to be adopted by 1 Jan 1997 and I doubt that summer-time arrangements will be top of the Commission's priority list as the new millennium dawns. There is no mention of the French desire to abandon the whole idea. France has had a change of government recently so maybe it will be quietly dropped. More and more EU stuff is now on the WWW but I can't find this yet. It may be that Directives won't appear in order to make you buy the Official Journal. It may appear at the European Parliament's site (http://www.europarl.eu.int/, select language, Subject Index, Texts Adopted: Provisional edition, and search) but it only goes up to 18 July at present. Peter Ilieve peter(a)aldie.co.uk

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comments on DHCP time zone draft (draft-ietf-dhc-timezone-03.txt)
by Paul Eggert Aug. 1, 1997

Aug. 1, 1997

Here are some comments on your document: DHCP Option for IEEE 1003.1 POSIX Timezone Specifications ftp://ds.internic.net/internet-drafts/draft-ietf-dhc-timezone-03.txt (1997-07-30) * The draft allows only time zone settings that conform to POSIX.1. However, in practice, these settings are not enough to satisfy many real-world applications, for the following reasons: - Due to politics, time zone rules change with time, and POSIX settings cannot capture these changes. For example, last year the time zone in Sri Lanka changed from +0530 to +0630 on May 25, and then to +0600 on Oct 26. POSIX rules cannot represent the time in Sri Lanka last year. - Some countries use periodic rules that cannot be represented by POSIX rules. Examples include Israel (which uses rules based on the Jewish calendar) and Iran (the Persian calendar). Again, POSIX rules cannot represent changes like these, except for one or two transitions at a time. - Many hosts use the Olson extension to POSIX.1 <ftp://elsie/nci/nih/gov/pub/tz/> The draft gives no way to specify time zone rules using the Olson extension, and so these hosts cannot be configured as desired. The Olson time zone settings are upward compatible with POSIX.1. They are widely used in practice: the source code and tables are public domain, and they are supported by many types of hosts, including BSD, HPUX, Irix, Linux, Network Appliance, Sun, and Unixware. Therefore I propose that the draft be changed to also allow time zone settings that conform to the Olson extension to POSIX.1. Perhaps the DHCP server could reply with both an Olson setting (for clients that support the Olson extension) and a POSIX.1 setting (for clients that don't). * There are several discrepancies between the latest POSIX.1 spec for TZ format and the DHCP time zone draft. They should be removed by copying the latest POSIX.1 spec's wording more carefully. Here are some example discrepancies. - The `,' and `[' before `start' should be interchanged. In other words, `stdoffset[dst[offset],[start[/time],end[/time]]]' should be `stdoffset[dst[offset][,start[/time],end[/time]]]'. - The current POSIX spec places an upper bound of {TZNAME_MAX} on the length of a time zone designation like "EST"; the draft does not have this limit. - The current POSIX spec does not allow null characters in a time zone designation. - The current POSIX spec allows hour=24. - The current POSIX spec explicitly says that day 0 is Sunday. * The example for the Eastern USA time zone, 1986 is unrealistic. In practice, people want to avoid changing their time zone settings every year, so they rarely use Julian day rules. Here is a better set of examples (subject to change at any time by political events): Eastern USA from 1987: EST5EDT,M4.1.0,M10.5.0 EST (-0500) during winter EDT (-0400) during summer summer time from the 1st Sunday in April at 02:00 to the last Sunday in October at 02:00 Central European Union from 1996: CET-1CEST,M3.5.0/1,M10.5.0/2 CET (+0100) during winter CEST (+0200) during summer summer time from the last Sunday in March at 01:00 to the last Sunday in October at 02:00 Arizona from 1968: MST7 MST (-0700) all year Tasmania from 1991: EST-10EST,M10.1.0/2,M3.5.0/3 EST (+1000) during winter (``Eastern Standard Time'') EST (+1100) during summer (``Eastern Summer Time'') summer time from the the first Sunday in October at 02:00 to the last Sunday in March at 03:00 Cook Islands from 1979: CKT-10CKST-10:30,M10.5.0/0,M3.1.0/0 CKT (+1000) during winter CKST (+1030) during summer summer time from the first Sunday in October at 00:00 to the first Sunday in March at 00:00 Line Islands from 1995: LINT-14 LINT (+1400) all year If you accept my suggestion for the Olson extension, here are some more examples (which should be valid indefinitely): Eastern USA: America/New_York Central European Union: Europe/Brussels Arizona: America/Phoenix Tasmania: Australia/Hobart Cook Islands: Pacific/Rarotonga Line Islands, Kiribati: Pacific/Kiritimati * Please consider adding the following references: ftp://ds.internic.net/internet-drafts/draft-newman-datetime-01.txt contains a proposed procedure for IANA registration of time zone names, and uses the Olson extension as its basis. ftp://elsie/nci/nih/gov/pub/tz/ contains public-domain code and data for the Olson extension to the POSIX time zone strings. The current version of POSIX.1 is: ISO/IEC 9945-1: 1996 (ANSI/IEEE Std 1003.1, 1996) Information technology -- Portable Operating System Interface (POSIX) -- Part 1: System Application Program Interface (API) [C Language] (1996-07-12), section 8.1.1, Extensions to Time Functions * Terminology. The usual terms are `time zone' (not `timezone') and `daylight-saving time' (not `daylight savings time'). The draft should be reworked to use the usual terms. POSIX.1 currently uses `summer time' (the British term) instead of `daylight-saving time' (the American term). Whichever term is used, the draft should mention its equivalence to the other term.

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Time zone for the German all year antarctic station
by Wilhelm Mueller July 23, 1997

July 23, 1997

A friend of mine started working with the Alfred-Wegener-Institut, the German Institute for Polar and Ocean Research. So I aked him if he couldn't find out about the time used at the Georg-Neumayer-Station. Here's the answer, directly from the station leader (oheudeck is my friend's account at the AWI): > From: neumayer (Stationsleiter) > To: oheudeck > Subject: Mail from Neumayer Station Jul 23 1997 02:59 > Date: Wed, 23 Jul 1997 02:59:06 +0200 > > Sehr geehrter Herr Heudecker, > selbstverstaendlich werden alle Fragen sofort beantwortet. > Wir haben hier auf der Station ganzjaehrig, also ohne Sommerzeitregelungen, > die utc-Zeit. Wir sind im Sommer mit unserer Tageszeit zwei Stunden hinter > der bremerhavenener Ortszeit zurueck, im Winter nur eine Stunde. Dies entspricht > zwar nicht ganz den geographischen Gegebenheiten, spielt aber hier nicht so die > Rolle. [...] Translation (text in [] is from me): Dear Mr. Heudecker, of course all questions will be answered immediately. We have here at the station all over the year, that is, daylight saving time rules do not apply, UTC. In summer [that must refer to the Northern hemisphere] our time of day is two hours behind Bremerhaven [the city where the AWI administration and main facilities are located] local time, in winter just one. This does not correspond to geographic facts, but is not of much concern here. Yours, W. Müller -- "I don't object to sex before marriage, but two minutes before?!?" -- *************************************************** Der Senator für Bau, Verkehr und Stadtentwicklung Referat 43 (Dienststelle Schlachte 32) Wilhelm Müller Tel: +49-421-361-10629 Ansgaritorstraße 2 Fax: +49-421-361-2295 D-28195 Bremen, Germany Bits KeyID Fingerprint 2048 C2F0A2D1 B1452644 DEBB647F 94AA3DA9 01608E0A 1024 9548B531 AE9AD94C 978ABC3F 4B25B52B 1E752137 512 48B324ED 885C3131 DDF53740 DB7F9421 2A5431EE

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tzcode1997f.tar.gz and tadata1997g.tar.gz
by ado July 19, 1997

July 19, 1997

The files ftp://elsie.nci.nih.gov/pub/tzcode1997f.tar.gz and ftp://elsie.nci.nih.gov/pub/tzdata1997g.tar.gz are now available. These incorporate Paul Eggert's updates circulated on the time zone list earlier this week; there's also a small change to a function prototype; "Music" has been renamed "Arts.htm", htmlified, and augmented to include information on Around the World in Eighty Days. --ado

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proposed tz patches for Albania, Belgium, Congo, Hong Kong, and WWW
by Paul Eggert July 16, 1997

July 16, 1997

Here are some proposed patches to the tz database, notably to bring it up to date with recent political events: * Hong Kong is now part of China, and Zaire has been renamed Democratic Republic of Congo. These changes don't affect most programs; they just change commentary and tables accessed by tzselect. * Correct the DST changeover times in Albania from 1985 through 1990, as reported in the new edition of Shanks. (Expect more corrections in the future; I haven't had time to read Shanks's new edition past the A's yet.) * Correct several errors in the Belgian entries before 1944. Thanks to Pascal Delmoitie <pascal(a)belnet.be> for the new data. * Add Eric Ulevik <eau(a)ozemail.com.au>'s comments about NSW's plans to change clocks for the 2000 Olympics. * Rework WWW.htm to be more HTML-friendly. Add several sites, and update some obsolete references. Also, it'd be nice if WWW.htm could be available as a separate file; this would make it easier to give a URL to people interested in tz data. =================================================================== RCS file: RCS/WWW.htm,v retrieving revision 1997.5 retrieving revision 1997.5.1.3 diff -c -r1997.5 -r1997.5.1.3 *** WWW.htm 1997/05/03 22:52:34 1997.5 --- WWW.htm 1997/07/16 13:09:11 1997.5.1.3 *************** *** 2,109 **** <HTML> <HEAD> <TITLE> ! Sources for Time Zone and Daylight Savings Data </TITLE> </HEAD> <BODY> ! <PRE> ! # '@(#)WWW.htm 7.7' ! ! # From Paul Eggert <eggert(a)twinsun.com> (1997-03-28) ! # ! # The Web has several other sources for time zone and daylight savings data. ! # Here are some recent links that may be of interest. ! # ! # Date and Time Gateway ! # <A HREF="http://www.bsdi.com/date">http://www.bsdi.com/date</A> ! # A text-based source for tables of current time throughout the world. ! # Its point-and-click interface accesses a recent version of the tz data. ! # ! # WORLDTIME: interactive atlas, time info, public holidays ! # <A HREF="http://www.worldtime.com/">http://www.worldtime.com/</A> ! # Interactive world atlas with information on local time, sunrise and sunset, ! # and public holidays in several hundred cities around the world. ! # ! # Local Times Around the World ! # <A HREF="http://www.hilink.com.au/times/">http://www.hilink.com.au/times/</A> ! # This text-based system contains links to local time servers ! # throughout the world, and though the coverage is limited, ! # the live data provide a nice way to check one's tables. ! # ! # World Time Zones ! # <A HREF="http://tycho.usno.navy.mil/tzones.html">http://tycho.usno.navy.mil/tzones.html</A> ! # US Naval Observatory data, used as the source for the usno* files. ! # ! # Standard Time Zones of the World ! # <A HREF="http://www.odci.gov/cia/publications/nsolo/rmap-gif/802483.gif">http://www.odci.gov/cia/publications/nsolo/rmap-gif/802483.gif</A> [75 kB] ! # <A HREF="http://www.odci.gov/cia/publications/nsolo/rmap-tif/802483.tif">http://www.odci.gov/cia/publications/nsolo/rmap-tif/802483.tif</A> [1 MB] ! # <A HREF="http://www.odci.gov/cia/publications/nsolo/rmap-pdf/802483.pdf">http://www.odci.gov/cia/publications/nsolo/rmap-pdf/802483.pdf</A> [3 MB] ! # A static time zone map, available in multiple resolutions. ! # The quality is good, but the map does not indicate summer time, ! # and parts of the data are a few years out of date. ! # ! # Detailed World Clock information ! # <A HREF="http://www.stud.unit.no/USERBIN/steffent/timezones.pl">http://www.stud.unit.no/USERBIN/steffent/timezones.pl</A> ! # A map of cities and a list of UTC offsets and current DST rules in each city. ! # ! # The Time of Internet ! # <A HREF="http://pisolo.cstv.to.cnr.it/toi/uk/toi.html">http://pisolo.cstv.to.cnr.it/toi/uk/toi.html</A> ! # Good descriptions of Time Zones and daylight savings time, with diagrams. ! # The time zone map is out of date, however. ! # ! # A Few Facts Concerning RGO, GMT, and UT, by Richard B. Langley ! # <A HREF="http://community.bellcore.com/mbr/gmt-explained.html">http://community.bellcore.com/mbr/gmt-explained.html</A> ! # This answers questions like ``What is the difference between GMT and UTC?'' ! # ! # Daylight Saving Time -- Saving Time, Saving Energy ! # <A HREF="http://www.energy.ca.gov/energy/daylightsaving.html">http://www.energy.ca.gov/energy/daylightsaving.html</A> ! # A history of DST in the US. ! # ! # Yahoo! - Science:Weights and Measures:Measurements:Time:Daylight Savings Time ! # <A HREF="http://www.yahoo.com/Science/Weights_and_Measures/Measurements/Time/Dayligh…">http://www.yahoo.com/Science/Weights_and_Measures/Measurements/Time/Dayligh…</A> ! # The famous Internet indexing service Yahoo! collects its time zone info here. ! # ! # International Air Transport Association ! # <A HREF="http://www.iata.org/">http://www.iata.org/</A> ! # The source for the IATA SSIM, which gives current time zone rules for ! # all the airports served by commercial aviation. ! # ! ############################################################################### ! ! # From Manavendra Thakur <Manavendra_Thakur(a)NeXT.COM> (1995-11-06) ! # ! # To Paul's list of time zone information on the web, I would add the ! # following URL: ! # <A HREF="http://www.dhl.com/dhl/dhlinfo/1bb.html">http://www.dhl.com/dhl/dhlinfo/1bb.html</A> ! # or more simply: ! # <A HREF="http://www.dhl.com/">http://www.dhl.com/</A> ! # ! # This is run by DHL (the courier company), and it presents a list of the ! # countries served by that company. If you then click on a particular ! # country, here's an example of what you'll see (graphics stripped out): ! # ! # United Kingdom ! # ! # HOLIDAYS: Jan 1, 2, Apr 14, 17, May 1, 29, Aug 28, Dec 25, 26 ! # ! # INTERNATIONAL DIALING CODE: +44 ! # ! # CURRENT LOCAL TIME: 09:41 Monday 6 November 1995 ! # ! # I find this rather handy, and given that DHL covers 217 countries and ! # territories, it's pretty comprehensive coverage. ! # ! # (I have no idea what system DHL is using to calculate the local time, but ! # it's been accurate so far.) ! ! ############################################################################### ! ! ! # From Arthur David Olson <arthur_david_olson(a)nih.gov> (1996-01-04) ! # ! # A good source of information about ISO 8601 seems to be ! # <A HREF="http://www.ft.uni-erlangen.de/~mskuhn/iso-time.html">http://www.ft.uni-erlangen.de/~mskuhn/iso-time.html</A> ! # maintained by Markus Kuhn. ! </PRE> </BODY> </HTML> --- 2,109 ---- <HTML> <HEAD> <TITLE> ! Sources for Time Zone and Daylight Saving Time Data </TITLE> </HEAD> <BODY> ! <H1>Sources for Time Zone and Daylight Saving Time Data</H1> ! <P> ! <small> ! @(#)WWW.htm 7.7 ! </small> ! </P> ! <H2>Paul Eggert writes:</H2><P> ! The public-domain tz database contains code and data ! that represent the history of local time ! for many representative locations around the globe. ! It is updated periodically to reflect changes made by political bodies ! to UTC offsets and daylight-saving rules. ! This database (often called <samp>zoneinfo</samp>) ! is used by several implementations, ! including BSD, DJGPP, GNU/Linux, Irix, Solaris, and Unixware. ! In the tz database's ! <A HREF="ftp://elsie.nci.nih.gov/pub/">FTP distribution</A>, ! the code is in the file <samp>tzcode<var>C</var>.tar.gz</samp>, ! where <samp><var>C</var></samp> is the code's version; ! similarly, the data are in <samp>tzdata<var>D</var>.tar.gz</samp>, ! where <samp><var>D</var></samp> is the data's version. ! <P> ! The Web has several other sources for time zone and daylight saving time data. ! Here are some recent links that may be of interest. ! <UL> ! <LI><A HREF="http://www.bsdi.com/date">Date and Time Gateway</A> ! is a text-based source for tables of current time throughout the world. ! Its point-and-click interface accesses a recent version of the tz data. ! <LI><A HREF="http://www.worldtime.com/">WORLDTIME: interactive atlas, ! time info, public holidays</A> ! contains information on local time, sunrise and sunset, ! and public holidays in several hundred cities around the world. ! <LI><A HREF="http://www.hilink.com.au/times/">Local Times Around the World</A> ! is a text-based system containing links to local time servers ! throughout the world; though the coverage is limited, ! the live data provide a nice way to check one's tables. ! <LI><A HREF="http://tycho.usno.navy.mil/tzones.html">World Time Zones</A> ! contains US Naval Observatory data, used as the source ! for the <samp>usno*</samp> files. ! <LI>The US Central Intelligence agency publishes a static ! Standard Time Zones of the World map in multiple resolutions. ! including ! <A HREF="http://www.odci.gov/cia/publications/nsolo/rmap-gif/802483.gif">75 ! kB</A>, ! <A HREF="http://www.odci.gov/cia/publications/nsolo/rmap-tif/802483.tif">1 ! MB</A>, and ! <A HREF="http://www.odci.gov/cia/publications/nsolo/rmap-pdf/802483.pdf">3 ! MB</A> versions. ! The pictorial quality is good, but the map does not indicate summer time, ! and parts of the data are a few years out of date. ! <LI><A HREF="http://pisolo.cstv.to.cnr.it/toi/uk/toi.html">The ! Time of Internet</A> ! contains good descriptions of Time Zones and daylight saving time, ! with diagrams. ! The time zone map is out of date, however. ! <LI><A HREF="http://community.bellcore.com/mbr/gmt-explained.html">A Few Facts ! Concerning RGO, GMT, and UT, by Richard B. Langley</A> ! answers questions like ``What is the difference between GMT and UTC?'' ! <LI><A HREF="http://www.energy.ca.gov/energy/daylightsaving.html">Daylight ! Saving Time -- Saving Time, Saving Energy</A> ! is a history of DST in the US. ! <LI><A HREF="http://www.yahoo.com/Science/Weights_and_Measures/Measurements/Time/Dayligh…">Yahoo! - Science:Weights and Measures:Measurements:Time:Daylight Saving Time</A> ! is where the famous Internet indexing service Yahoo! collects its time zone ! info. ! <LI>The <A HREF="http://www.iata.org/">International Air Transport Association</A> ! publishes the IATA SSIM, which gives current time zone rules for ! all the airports served by commercial aviation. ! <LI><A HREF="http://hpiers.obspm.fr/webiers/results/bul/README.html"> ! Bulletins of IERS</A> contains official publications of the ! International Earth Rotation Service, the committee that decides ! when leap seconds occur. ! </UL> ! -- <A HREF="mailto:eggert@twinsun.com">eggert(a)twinsun.com</A> ! (1997-07-16) ! </P> ! <H2>Arthur David Olson writes:</H2><P> ! A good source of information about ISO 8601 seems to be ! <A HREF="http://www.ft.uni-erlangen.de/~mskuhn/iso-time.html">International ! Standard Date and Time Notation</A> ! maintained by Markus Kuhn. ! <P> ! -- <A HREF="mailto:arthur_david_olson@nih.gov">arthur_david_olson(a)nih.gov</A> ! (1996-01-04) ! </P> ! <H2>Manavendra Thakur writes:</H2><P> ! <A HREF="http://www.dhl.com/dhl/dhlinfo/1bb.html">DHL Information</A> ! is run by <A HREF="http://www.dhl.com/">DHL</A> ! (the courier company), and it presents a list of the ! countries served by that company.... ! Here's an example of what you'll see for the ! <A HREF="http://www.dhl.com/dhlinfo/country/unitedki.html">United Kingdom</A>. ! I find this rather handy, and given that DHL covers 217 countries and ! territories, it's pretty comprehensive coverage. ! (I have no idea what system DHL is using to calculate the local time, but ! it's been accurate so far.) ! <P> ! -- <A HREF="mailto:Manavendra_Thakur@NeXT.COM">Manavendra_Thakur(a)NeXT.COM</A> ! (1995-11-06) ! </P> </BODY> </HTML> =================================================================== RCS file: RCS/africa,v retrieving revision 1997.5 retrieving revision 1997.5.1.1 diff -c -r1997.5 -r1997.5.1.1 *** africa 1997/03/29 17:48:49 1997.5 --- africa 1997/07/06 07:19:55 1997.5.1.1 *************** *** 218,224 **** Zone Indian/Comoro 2:53:04 - LMT 1911 Jul # Moroni, Gran Comoro 3:00 - EAT ! # Congo # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Brazzaville 1:01:08 - LMT 1912 1:00 - CAT --- 218,231 ---- Zone Indian/Comoro 2:53:04 - LMT 1911 Jul # Moroni, Gran Comoro 3:00 - EAT ! # Democratic Republic of Congo ! # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone Africa/Kinshasa 1:01:12 - LMT 1897 Nov 9 ! 1:00 - CAT ! Zone Africa/Lubumbashi 1:49:52 - LMT 1897 Nov 9 ! 2:00 - SAT ! ! # Republic of the Congo # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Brazzaville 1:01:08 - LMT 1912 1:00 - CAT *************** *** 656,668 **** 2:45 - BEAT 1957 3:00 - EAT - # Zaire - # Zone NAME GMTOFF RULES FORMAT [UNTIL] - Zone Africa/Kinshasa 1:01:12 - LMT 1897 Nov 9 - 1:00 - CAT - Zone Africa/Lubumbashi 1:49:52 - LMT 1897 Nov 9 - 2:00 - SAT - # Zambia # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Lusaka 1:53:08 - LMT 1903 Mar --- 663,668 ---- =================================================================== RCS file: RCS/asia,v retrieving revision 1997.5 retrieving revision 1997.5.1.1 diff -c -r1997.5 -r1997.5.1.1 *** asia 1997/03/29 17:48:50 1997.5 --- asia 1997/07/06 07:19:55 1997.5.1.1 *************** *** 214,241 **** 5:30 - KAST 1940 # Kashgar Time 5:00 - KAST 1980 May 8:00 PRC C%sT - - ############################################################################### - - # Republic of China - - # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S - Rule Taiwan 1945 1951 - May 1 0:00 1:00 D - Rule Taiwan 1945 1951 - Oct 1 0:00 0 S - Rule Taiwan 1952 only - Mar 1 0:00 1:00 D - Rule Taiwan 1952 1954 - Nov 1 0:00 0 S - Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D - Rule Taiwan 1955 1961 - Oct 1 0:00 0 S - Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D - Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D - Rule Taiwan 1974 1975 - Oct 1 0:00 0 S - Rule Taiwan 1980 only - Jun 30 0:00 1:00 D - Rule Taiwan 1980 only - Sep 30 0:00 0 S - # Zone NAME GMTOFF RULES FORMAT [UNTIL] - Zone Asia/Taipei 8:06:00 - LMT 1896 - 8:00 Taiwan C%sT - - ############################################################################### # Hong Kong # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule HK 1946 only - Apr 20 3:30 1:00 S --- 214,219 ---- *************** *** 258,263 **** --- 236,262 ---- 8:00 HK HK%sT 1997 Jul 1 # return to China 8:00 PRC C%sT + + ############################################################################### + + # Republic of China + + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S + Rule Taiwan 1945 1951 - May 1 0:00 1:00 D + Rule Taiwan 1945 1951 - Oct 1 0:00 0 S + Rule Taiwan 1952 only - Mar 1 0:00 1:00 D + Rule Taiwan 1952 1954 - Nov 1 0:00 0 S + Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D + Rule Taiwan 1955 1961 - Oct 1 0:00 0 S + Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D + Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D + Rule Taiwan 1974 1975 - Oct 1 0:00 0 S + Rule Taiwan 1980 only - Jun 30 0:00 1:00 D + Rule Taiwan 1980 only - Sep 30 0:00 0 S + # Zone NAME GMTOFF RULES FORMAT [UNTIL] + Zone Asia/Taipei 8:06:00 - LMT 1896 + 8:00 Taiwan C%sT + # Macao # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Macao 1961 1962 - Mar Sun>=16 3:30 1:00 S =================================================================== RCS file: RCS/australasia,v retrieving revision 1997.5 retrieving revision 1997.5.1.1 diff -c -r1997.5 -r1997.5.1.1 *** australasia 1997/03/29 17:48:50 1997.5 --- australasia 1997/07/06 07:19:55 1997.5.1.1 *************** *** 768,773 **** --- 768,779 ---- # Prem Bob Carr announced NSW will fall into line with other E states # and SA and continue daylight savings to the last Sun in Mar. + # From Eric Ulevik <eau(a)ozemail.com.au> (1997-06-12): + # The NSW state government in Australia is talking about bringing the start + # of daylight savings time forward in the year 2000 to cater for the Olympics. + # This is going to take some time to be negotiated, because the plan is to do + # this in multiple states due to soccer games (which are not just in Sydney). + # Yancowinna # From John Basser (1989-01-04): =================================================================== RCS file: RCS/europe,v retrieving revision 1997.6 retrieving revision 1997.6.1.1 diff -c -r1997.6 -r1997.6.1.1 *** europe 1997/05/03 22:52:28 1997.6 --- europe 1997/07/06 07:19:55 1997.6.1.1 *************** *** 829,835 **** Rule C-Eur 1917 1918 - Apr Mon>=15 2:00s 1:00 S Rule C-Eur 1917 1918 - Sep Mon>=15 2:00s 0 - Rule C-Eur 1940 only - Apr 1 2:00s 1:00 S - # Whitman says 1941 DST was only from Feb 25 to Oct 5; go with Shanks. Rule C-Eur 1942 only - Nov 2 2:00s 0 - Rule C-Eur 1943 only - Mar 29 2:00s 1:00 S Rule C-Eur 1943 only - Oct 4 2:00s 0 - --- 829,834 ---- *************** *** 938,949 **** Rule Albania 1983 only - Apr 18 0:00 1:00 S Rule Albania 1983 only - Oct 1 0:00 0 - Rule Albania 1984 only - Apr 1 0:00 1:00 S - Rule Albania 1984 only - Oct 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Tirane 1:19:20 - LMT 1914 1:00 - CET 1940 Jun 16 ! 1:00 Albania CE%sT 1985 Mar 31 1:00 ! 1:00 W-Eur CE%sT 1991 1:00 EU CE%sT # Andorra --- 937,947 ---- Rule Albania 1983 only - Apr 18 0:00 1:00 S Rule Albania 1983 only - Oct 1 0:00 0 - Rule Albania 1984 only - Apr 1 0:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Tirane 1:19:20 - LMT 1914 1:00 - CET 1940 Jun 16 ! # The following transition is from Shanks's 4th edition (1995). ! 1:00 Albania CE%sT 1984 Jul 1:00 EU CE%sT # Andorra *************** *** 984,1033 **** 2:00 Russia EE%sT # Belgium ! # Whitman and Shanks disagree; go with Shanks, usually. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! # From Whitman: Rule Belgium 1919 only - Mar 1 23:00s 1:00 S ! Rule Belgium 1919 only - Oct 4 23:00s 0 - ! # Shanks gives 1920 Feb 14 23:00s; go with Whitman. ! Rule Belgium 1920 1921 - Mar 14 23:00s 1:00 S Rule Belgium 1920 only - Oct 23 23:00s 0 - Rule Belgium 1921 only - Oct 25 23:00s 0 - Rule Belgium 1922 only - Mar 25 23:00s 1:00 S ! # Whitman gives 1927 Oct 1 2:00s and 1928 Oct 7 2:00s; go with Shanks. ! Rule Belgium 1922 1928 - Oct Sat>=1 23:00s 0 - Rule Belgium 1923 only - Apr 21 23:00s 1:00 S Rule Belgium 1924 only - Mar 29 23:00s 1:00 S Rule Belgium 1925 only - Apr 4 23:00s 1:00 S Rule Belgium 1926 only - Apr 17 23:00s 1:00 S Rule Belgium 1927 only - Apr 9 23:00s 1:00 S Rule Belgium 1928 only - Apr 14 23:00s 1:00 S Rule Belgium 1929 only - Apr 21 2:00s 1:00 S - Rule Belgium 1929 1938 - Oct Sun>=2 2:00s 0 - Rule Belgium 1930 only - Apr 13 2:00s 1:00 S Rule Belgium 1931 only - Apr 19 2:00s 1:00 S ! Rule Belgium 1932 only - Apr 17 2:00s 1:00 S Rule Belgium 1933 only - Mar 26 2:00s 1:00 S Rule Belgium 1934 only - Apr 8 2:00s 1:00 S Rule Belgium 1935 only - Mar 31 2:00s 1:00 S Rule Belgium 1936 only - Apr 19 2:00s 1:00 S - # Whitman says 1937 Apr 18 2:00s; go with Shanks. Rule Belgium 1937 only - Apr 4 2:00s 1:00 S - # Whitman says 1938 Apr 10 2:00s; go with Shanks. Rule Belgium 1938 only - Mar 27 2:00s 1:00 S Rule Belgium 1939 only - Apr 16 2:00s 1:00 S Rule Belgium 1939 only - Nov 19 2:00s 0 - Rule Belgium 1945 only - Apr 2 2:00s 1:00 S Rule Belgium 1945 only - Sep 16 2:00s 0 - Rule Belgium 1946 only - May 19 2:00s 1:00 S Rule Belgium 1946 only - Oct 7 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone Europe/Brussels 0:17:20 - LMT 1880 ! 0:17:20 - BMT 1892 May 1 12:00 # Brussels MT ! 0:00 - WET 1914 Aug 4 ! 1:00 C-Eur CE%sT 1919 Mar 1 23:00 ! 0:00 Belgium WE%sT 1940 Feb 24 23:00 ! 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1:00 Belgium CE%sT 1977 1:00 EU CE%sT --- 982,1043 ---- 2:00 Russia EE%sT # Belgium ! # ! # From Paul Eggert (1997-07-02): ! # Entries from 1918 through 1991 are taken from: ! # Annuaire de L'Observatoire Royal de Belgique, ! # Avenue Circulaire, 3, B-1180 BRUXELLES, CLVIIe annee, 1991 ! # (Imprimerie HAYEZ, s.p.r.l., Rue Fin, 4, 1080 BRUXELLES, MCMXC), ! # pp 8-9. ! # LMT before 1892 was 0:17:30, according to the official journal of Belgium: ! # Moniteur Belge, Samedi 30 Avril 1892, N.121. ! # Thanks to Pascal Delmoitie <pascal(a)belnet.be> for these references. ! # The 1918 rules are listed for completeness; they apply to unoccupied Belgium. ! # Assume Brussels switched to WET in 1918 when the armistice took effect. ! # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S ! Rule Belgium 1918 only - Mar 9 0:00s 1:00 S ! Rule Belgium 1918 1919 - Oct Sat>=1 23:00s 0 - Rule Belgium 1919 only - Mar 1 23:00s 1:00 S ! Rule Belgium 1920 only - Feb 14 23:00s 1:00 S Rule Belgium 1920 only - Oct 23 23:00s 0 - + Rule Belgium 1921 only - Mar 14 23:00s 1:00 S Rule Belgium 1921 only - Oct 25 23:00s 0 - Rule Belgium 1922 only - Mar 25 23:00s 1:00 S ! Rule Belgium 1922 1927 - Oct Sat>=1 23:00s 0 - Rule Belgium 1923 only - Apr 21 23:00s 1:00 S Rule Belgium 1924 only - Mar 29 23:00s 1:00 S Rule Belgium 1925 only - Apr 4 23:00s 1:00 S Rule Belgium 1926 only - Apr 17 23:00s 1:00 S Rule Belgium 1927 only - Apr 9 23:00s 1:00 S Rule Belgium 1928 only - Apr 14 23:00s 1:00 S + Rule Belgium 1928 1938 - Oct Sun>=2 2:00s 0 - Rule Belgium 1929 only - Apr 21 2:00s 1:00 S Rule Belgium 1930 only - Apr 13 2:00s 1:00 S Rule Belgium 1931 only - Apr 19 2:00s 1:00 S ! Rule Belgium 1932 only - Apr 3 2:00s 1:00 S Rule Belgium 1933 only - Mar 26 2:00s 1:00 S Rule Belgium 1934 only - Apr 8 2:00s 1:00 S Rule Belgium 1935 only - Mar 31 2:00s 1:00 S Rule Belgium 1936 only - Apr 19 2:00s 1:00 S Rule Belgium 1937 only - Apr 4 2:00s 1:00 S Rule Belgium 1938 only - Mar 27 2:00s 1:00 S Rule Belgium 1939 only - Apr 16 2:00s 1:00 S Rule Belgium 1939 only - Nov 19 2:00s 0 - + Rule Belgium 1940 only - Feb 25 2:00s 1:00 S + Rule Belgium 1944 only - Sep 17 2:00s 0 - Rule Belgium 1945 only - Apr 2 2:00s 1:00 S Rule Belgium 1945 only - Sep 16 2:00s 0 - Rule Belgium 1946 only - May 19 2:00s 1:00 S Rule Belgium 1946 only - Oct 7 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] ! Zone Europe/Brussels 0:17:30 - LMT 1880 ! 0:17:30 - BMT 1892 May 1 12:00 # Brussels MT ! 0:00 - WET 1914 Nov 8 ! 1:00 - CET 1916 May 1 0:00 ! 1:00 C-Eur CE%sT 1918 Nov 11 11:00u ! 0:00 Belgium WE%sT 1940 May 20 2:00s ! 1:00 C-Eur CE%sT 1944 Sep 3 1:00 Belgium CE%sT 1977 1:00 EU CE%sT =================================================================== RCS file: RCS/iso3166.tab,v retrieving revision 1.1 retrieving revision 1.2 diff -c -r1.1 -r1.2 *** iso3166.tab 1996/09/03 23:48:46 1.1 --- iso3166.tab 1997/07/06 07:19:55 1.2 *************** *** 51,58 **** BZ Belize CA Canada CC Cocos (Keeling) Islands CF Central African Rep. ! CG Congo CH Switzerland CI Cote d'Ivoire CK Cook Islands --- 51,59 ---- BZ Belize CA Canada CC Cocos (Keeling) Islands + CD Congo (Dem. Rep.) CF Central African Rep. ! CG Congo (Rep.) CH Switzerland CI Cote d'Ivoire CK Cook Islands *************** *** 103,109 **** GU Guam GW Guinea-Bissau GY Guyana - HK Hong Kong HM Heard Island & McDonald Islands HN Honduras HR Croatia --- 104,109 ---- *************** *** 250,254 **** YU Yugoslavia ZA South Africa ZM Zambia - ZR Zaire ZW Zimbabwe --- 250,253 ---- =================================================================== RCS file: RCS/zone.tab,v retrieving revision 1.2.1.2 retrieving revision 1.2.1.4 diff -c -r1.2.1.2 -r1.2.1.4 *** zone.tab 1997/02/27 21:11:39 1.2.1.2 --- zone.tab 1997/07/16 16:25:51 1.2.1.4 *************** *** 101,106 **** --- 101,108 ---- CA +6043-13503 America/Whitehorse Pacific Time - south Yukon CA +6404-13925 America/Dawson Pacific Time - north Yukon CC -1210+09655 Indian/Cocos + CD -0418+01518 Africa/Kinshasa west Dem. Rep. of Congo + CD -1140+02728 Africa/Lubumbashi east Dem. Rep. of Congo CF +0422+01835 Africa/Bangui CG -0416+01517 Africa/Brazzaville CH +4723+00832 Europe/Zurich *************** *** 111,116 **** --- 113,119 ---- CM +0403+00942 Africa/Douala CN +4545+12641 Asia/Harbin north Manchuria CN +3114+12128 Asia/Shanghai China coast + CN +2217+11409 Asia/Hong_Kong Hong Kong CN +2934+10635 Asia/Chungking China mountains CN +4348+08735 Asia/Urumqi Tibet & Xinjiang CN +3929+07559 Asia/Kashgar Eastern Turkestan *************** *** 167,173 **** GU +1328+14445 Pacific/Guam GW +1151-01535 Africa/Bissau GY +0648-05810 America/Guyana - HK +2217+11409 Asia/Hong_Kong HN +1406-08713 America/Tegucigalpa HR +4548+01558 Europe/Zagreb HT +1832-07220 America/Port-au-Prince --- 170,175 ---- *************** *** 366,371 **** YU +4450+02030 Europe/Belgrade ZA -2615+02800 Africa/Johannesburg ZM -1525+02817 Africa/Lusaka - ZR -0418+01518 Africa/Kinshasa west Zaire - ZR -1140+02728 Africa/Lubumbashi east Zaire ZW -1750+03103 Africa/Harare --- 368,371 ----

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ISO 8601 v2
by kuhn＠cs.purdue.edu July 14, 1997

July 14, 1997

I have just received a copy of the document ISO/TC 154/WG 8601/101 "Proposal for ISO 8601 - version 2", 1996-05-02, from the Nederlands Normalisatie-instituut (NNI). Here is a very brief summary of the suggested changes: - a new section explaining the difference between "time-point" and "period (time-interval)", as well as "duration". "This standard does not specify what entities should be considered time-points and what entities may be periods or time-intervals. The decision, whether for instance 'April 1985' specifies a time point or a time-interval is left to the users of the information (because this decision depends upon its use.)". - The units of time used and the zero-points of counting schemes are now explicitely defined: - second: as in ISO 31-1 - minute: time intervall of 60 seconds - hour: 60 minutes - day: 24 hours - week: 7 days - month: approx. 30 days - year: 12 consecutive months, considerd to approximate the time-interval required for one revolution of the earth around the sun "The Gregorian calendar uses a starting point which assigns the year number 1875 to the year in which the Convention du Metre was signed at Paris. All years numbered according to this convention have, by definition, one specific (calendar) year number. [...]" Ok, so definitely no Julian calendar, but still no word about years before 0001. The lengths of the 12 months are now listed, together with the day of year numers that every months covers in a leap or non-leap year. - ISO/TC 154 has received a number of suggestions to improve the Gregorian calendar in both the lengths of months as well as the location and occurance of leap days. "However, ISO/TC 154 does not feel qualified to propose a reorganization of the Gregorian calendar." (I guess the world has already enough problems with the year 2000, and considering the huge investment in almost unchangeable computer software, a calendar reforms today seems extremely unlikely.) - the ---D format has been removed. - the proposal explicitely does not address leap seconds, the allowed second range is still 00 to 59 :-( - the ugly T is still there, although France has critisised this separator and the whole idea of considering date and time and time zone to be separate fields. - There is a new annex C "temporal relationships", which defines 13 terms in order to represent the temporal relationship of an event with a time-period. This was copied from a CEN Medical Informatics working group proposal. (Make sure you use a monospaced font to display the following!) Reference time interval: ----------------> AT ----------------> BEFORE -------> AFTER -------> DURING -----> INCLUDES ----------------------------------------> CO-CONTINUES ---------------------------> CO-PRECEDES -----------------------------> CO-STARTS ----------> CO-ENDS -----------> WARNING: This was an incomplete summary of a 14 page document, which is only a first draft that is expected to be superceeded by a second draft in a few weeks. Markus -- Markus G. Kuhn, Computer Science grad student, Purdue University, Indiana, USA -- email: kuhn(a)cs.purdue.edu

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