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Link suggestion
by Tjeerd Kramer Nov. 4, 2003

Nov. 4, 2003

Hi, I was wondering if you would mind adding a link to the site I created. The name of the site is World Airport Codes. I saw that your site is currently linking to http://www.airportcitycodes.com/aaa/ so I thought you might want to add my site as well (or instead), since we offer more airports, and more info. World Airport Codes lists details for 9000+ airports all over the world. It has the longitude and latitude, the codes, the elevation level, the runway length, and the cities and countries it is in. You can find the site at www.world-airport-codes.com. Hopefully you will like it and add it to your site at http://www.twinsun.com/tz/tz-link.htm Let me know what you think, Tjeerd -- Tjeerd Kramer World Airport Codes W: www.world-airport-codes.com E: tjeerd(a)world-airport-codes.com

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Time in Jersey
by Joseph S. Myers Nov. 3, 2003

Nov. 3, 2003

A while back, Geraint Jennings <http://www.societe-jersiaise.org/geraint/jerriais> sent me some additional information about time in Jersey, with a reference to www.jerseylegalinfo.je for laws including the 1898 law adopting GMT. I've now got round to updating my site <http://www.srcf.ucam.org/~jsm28/british-time/> accordingly. He also sent the following newspaper article he wrote about the adoption of GMT in Jersey (published at the end of October so I can now send it to this list). As I doubt many people on this list read J�rriais at all, I'm only including the English translation, "intended as a crib to enable English-speakers to read the original so it's a bit clunky and literal". ====================================================================== Jersey Time Do you like the change of time? Putting back the clocks in Autumn, we're used to that at least, but in 1862 there there were lots of townsfolk who were very angry with the putting forward of the time. The thing is, in the month of May 1862 it was decided to put the new clock in the steeple of the Parish Church of St. Helier on Greenwich time, instead of Jersey time, seeing as the captains of the steamships which travelled according to the timetables of English companies had asked for that arrangement. But that's what didn't please Jersey pilots and seamen. The fourth of June therefore, a hundred and sixteen Principals of the Parish called a Parish Assembly so as to put back the clock to Jersey time - why do such nonsense to please the English? And what's more, an election for Churchwarden had been annulled because the nominations had been posted in the official notice box at three minutes past eleven - by the Church clock - but at five to eleven by Jersey time. The nominations should have been placed in the box after eleven o'clock - but the question was: which eleven o'clock? The Assembly decided that one must ignore foreign time, and on the fifth of June therefore the clock began to show Jersey time. It wasn't until 1898 that the States passed a law to adopt Greenwich mean time in Jersey, which became the official time at around 4pm on the 11th June. What do you think? Would you like to go back to Jersey time, with a difference of eight minutes and twenty-seven seconds with the UK? Alas, it's no longer our Parishes which are in charge of the time! Geraint Jennings Ma�tre-p�tre des Pages J�rriaises http://www.societe-jersiaise.org/geraint/jerriais ====================================================================== -- Joseph S. Myers jsm(a)polyomino.org.uk

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Peru DST
by Paul Eggert Nov. 3, 2003

Nov. 3, 2003

[Forwarded from Mark Brader, who emailed this to me October 26.] > From: msb(a)vex.net (Mark Brader) > Date: Sun, 26 Oct 2003 15:59:23 -0500 (EST) Feel free to forward this to tz. I don't need to see any responses (I'll see them in the tz archives eventually anyway). This is all that tzdata has on Peru, unless it's been updated since the last time I looked. (I can't recheck it from home, because elsie.nci.nih.gov has not accepted FTP connections from shell.vex.net for several months.) ************************************************************************ # Peru # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Peru 1938 only - Jan 1 0:00 1:00 S Rule Peru 1938 only - Apr 1 0:00 0 - Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - Rule Peru 1987 only - Jan 1 0:00 1:00 S Rule Peru 1987 only - Apr 1 0:00 0 - Rule Peru 1990 only - Jan 1 0:00 1:00 S Rule Peru 1990 only - Apr 1 0:00 0 - # IATA is ambiguous for 1993/1995; go with Shanks. Rule Peru 1994 only - Jan 1 0:00 1:00 S Rule Peru 1994 only - Apr 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Lima -5:08:12 - LMT 1890 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? -5:00 Peru PE%sT # Peru Time ************************************************************************ Now, it's bizarre enough to see an equatorial country falling victim to DST in the first place, but these things happen -- but the dates shown from 1987 to 1994 make this case even weirder. However, here is evidence that the above is not the whole story. ************************************************************************ * From: "Evelyn C. Leeper" <eleeper(a)optonline.net> * Newsgroups: rec.travel.usa-canada * Subject: Re: Daylight Savings Time and train travel * Message-ID: <xrGmb.39935$gA1.13896113(a)news4.srv.hcvlny.cv.net> * Date: Sun, 26 Oct 2003 02:37:17 GMT Hans-Christian Grosz wrote: > Susan Wachob wrote: > > >>Is this particularly an American scheme? (hare-brained or clever- you >>choose) > > > It originated during World War 1st in Germany/Austria and was adopted > afterwards by european countries and the us. > > This one describes the "mess" around the world: > http://webexhibits.org/daylightsaving/g.html When we were in Peru in 1985-1986, they apparently switched over sometime between December 29 and January 3 while we were on the Amazon. -- Evelyn C. Leeper http://www.geocities.com/evelynleeper We need to be creating a world that we would like to live in when we're not the biggest power on the block. --Bill Clinton ************************************************************************ I have already contacted Evelyn by email and she has confirmed that the years she mentions were the correct ones. So the obvious guess is that the same January 1 - April 1 pattern occurred in 1986, and perhaps in some other years around then. -- Mark Brader "Without nuclear weapons we will be nothing Toronto more than a rich, powerful Canada...." msb(a)vex.net -- A Walk in the Woods, by Lee Blessing

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FW: Time Zone for Mongolia
by Bill Bonnett Nov. 2, 2003

Nov. 2, 2003

Bill -----Original Message----- From: PAO [mailto:pao@usembassy.mn] Sent: Thursday, October 23, 2003 2:03 AM To: news(a)abdicate.net Subject: RE: Time Zone Mongolia's time zone is UTC + 9. They do change for daylight saving time, usually in mid-April and early October. There is only one official time zone in the country. Hope this helps. ----------------------------------------------------------- Scott Weinhold Public Affairs Officer US Embassy Ulaanbaatar tel: (976-11) 312-536; fax: (976-11) 312-380 ------------------------------------------------------------

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zic.8 in html
by Oscar van Vlijmen Oct. 31, 2003

Oct. 31, 2003

The "TZ" distibution is targeted towards POSIX-compliant hosts, including BSD, HP, Linux, Network Appliance, SCO, SGI, and Sun. Some non-Unix and even non-C developers would like to use the timezone data, but they cannot find nor read the documentation. The main documentation can be found in the file "Theory" in the tzcode folder. This is an unformatted text-only file. The file "zic.8" in the tzcode folder documents the format used in the tz database files. But, not everyone can read or convert groff/troff formatted files like "zic.8". I know, it's hard to believe, but it's a recurring problem. Therefore and once again, I converted the latest version of the zic.8 file to html. Please find it attached to this email. This point was discussed earlier on April 19 & 20, 2000 and April 7, 2002. The TZ files can still be found at: <ftp://elsie.nci.nih.gov/pub/> Download the files: tzcode2003d.tar.gz or newer, and tzdata2003d.tar.gz or newer These are Gzipped tar-balls. Oscar van Vlijmen 2003-10-09

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Variant versions of manual pages
by Olson, Arthur David (NIH/NCI) Oct. 23, 2003

Oct. 23, 2003

Would text of the sort shown below (for "newstrftime.3") meet the preceived need for non-man versions of the manual pages? --ado NAME strftime - format date and time SYNOPSIS #include <sys/types.h> #include <time.h> size_t strftime(buf, maxsize, format, timeptr) char *buf; size_t maxsize; const char *format; const struct tm *timeptr cc ... -ltz DESCRIPTION The strftime function formats the information from timeptr into the buffer buf according to the string pointed to by format. The format string consists of zero or more conversion specifications and ordinary characters. All ordinary char- acters are copied directly into the buffer. A conversion specification consists of a percent sign and one other char- acter. No more than maxsize characters are be placed into the array. If the total number of resulting characters, includ- ing the terminating null character, is not more than max- size, strftime returns the number of characters in the array, not counting the terminating null. Otherwise, zero is returned. Each conversion specification is replaced by the characters as follows which are then copied into the buffer. %A is replaced by the locale's full weekday name. %a is replaced by the locale's abbreviated weekday name. %B is replaced by the locale's full month name. %b or %h is replaced by the locale's abbreviated month name. %C is replaced by the century (a year divided by 100 and truncated to an integer) as a decimal number (00-99). %c is replaced by the locale's appropriate date and time representation. %D is replaced by the date in the format %m/%d/%y. %d is replaced by the day of the month as a decimal number (01-31). %e is replaced by the day of month as a decimal number (1-31); single digits are preceded by a blank. %F is replaced by the date in the format %Y-%m-%d. %G is replaced by the ISO 8601 year with century as a decimal number. %g is replaced by the ISO 8601 year without century as a decimal number (00-99). %H is replaced by the hour (24-hour clock) as a decimal number (00-23). %I is replaced by the hour (12-hour clock) as a decimal number (01-12). %j is replaced by the day of the year as a decimal number (001-366). %k is replaced by the hour (24-hour clock) as a decimal number (0-23); single digits are preceded by a blank. %l is replaced by the hour (12-hour clock) as a decimal number (1-12); single digits are preceded by a blank. %M is replaced by the minute as a decimal number (00-59). %m is replaced by the month as a decimal number (01-12). %n is replaced by a newline. %p is replaced by the locale's equivalent of either AM or PM. %R is replaced by the time in the format %H:%M. %r is replaced by the locale's representation of 12-hour clock time using AM/PM notation. %S is replaced by the second as a decimal number (00-60). %s is replaced by the number of seconds since the Epoch, UTC (see mktime(3)). %T is replaced by the time in the format %H:%M:%S. %t is replaced by a tab. %U is replaced by the week number of the year (Sunday as the first day of the week) as a decimal number (00-53). %u is replaced by the weekday (Monday as the first day of the week) as a decimal number (1-7). %V is replaced by the week number of the year (Monday as the first day of the week) as a decimal number (01-53). If the week containing January 1 has four or more days in the new year, then it is week 1; otherwise it is week 53 of the previous year, and the next week is week 1. %W is replaced by the week number of the year (Monday as the first day of the week) as a decimal number (00-53). %w is replaced by the weekday (Sunday as the first day of the week) as a decimal number (0-6). %X is replaced by the locale's appropriate time represen- tation. %x is replaced by the locale's appropriate date represen- tation. %Y is replaced by the year with century as a decimal number. %y is replaced by the year without century as a decimal number (00-99). %Z is replaced by the time zone name, or by the empty string if this is not determinable. %z is replaced by the offset from UTC in the format +HHMM or -HHMM as appropriate, with positive values representing locations east of Greenwich, or by the empty string if this is not determinable. %% is replaced by a single %. %+ is replaced by the date and time in date(1) format. SEE ALSO date(1), getenv(3), newctime(3), newtzset(3), time(2), tzfile(5)

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FW: Wrong offset for Mongolia
by Olson, Arthur David (NIH/NCI) Oct. 22, 2003

Oct. 22, 2003

Daniela Duerbeck is not on the time zone mailing list; direct replies appropriately. --ado -----Original Message----- From: Daniela Duerbeck [mailto:daniela.duerbeck@t-online.de] Sent: Tuesday, September 23, 2003 12:36 PM To: tz(a)lecserver.nci.nih.gov Subject: Wrong offset for Mongolia Hello! The tz database states +9 for Mongolia, but +8 is correct: Time Differences Most of Mongolia is 8 hours ahead of GMT. However, the three western aimags of Khovd, Uvs and Bayan Ulgii are GMT+7. Mongolia no longer puts forward its clocks by 1 hour in the summer months. Found on: http://www.mongoliatourism.gov.mn/fackpack.html Many greetings from Dani

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Re: Variant versions of manual pages
by WHarms＠bfs.de Oct. 20, 2003

Oct. 20, 2003

hi Arthur, the current man-pages are maintained by andries brouwer (Andries.Brouwer(a)cwi.nl) his pages can easly been converted to ascii or html using groff. zcat /usr/local/man/man3/strftime.3.gz | groff -mandoc -Thtml >/tmp/strftime.html zcat /usr/local/man/man3/strftime.3.gz | groff -mandoc -Tlatin1 >/tmp/strftime.txt hope that helps, walter btw: never heard about newstrftime() or newctime(); something special ? - - - - - - - - - - - - - - Original Message - - - - - - - - - - - - - - From: "Olson, Arthur David (NIH/NCI)" <olsona(a)dc37a.nci.nih.gov> Subject: Variant versions of manual pages Date: 10/20/03 15:26 Would text of the sort shown below (for "newstrftime.3") meet the preceived need for non-man versions of the manual pages? --ado NAME strftime - format date and time SYNOPSIS #include <sys/types.h> #include <time.h> size_t strftime(buf, maxsize, format, timeptr) char *buf; size_t maxsize; const char *format; const struct tm *timeptr cc ... -ltz DESCRIPTION The strftime function formats the information from timeptr into the buffer buf according to the string pointed to by format. The format string consists of zero or more conversion specifications and ordinary characters. All ordinary char- acters are copied directly into the buffer. A conversion specification consists of a percent sign and one other char- acter. No more than maxsize characters are be placed into the array. If the total number of resulting characters, includ- ing the terminating null character, is not more than max- size, strftime returns the number of characters in the array, not counting the terminating null. Otherwise, zero is returned. Each conversion specification is replaced by the characters as follows which are then copied into the buffer. %A is replaced by the locale's full weekday name. %a is replaced by the locale's abbreviated weekday name. %B is replaced by the locale's full month name. %b or %h is replaced by the locale's abbreviated month name. %C is replaced by the century (a year divided by 100 and truncated to an integer) as a decimal number (00-99). %c is replaced by the locale's appropriate date and time representation. %D is replaced by the date in the format %m/%d/%y. %d is replaced by the day of the month as a decimal number (01-31). %e is replaced by the day of month as a decimal number (1-31); single digits are preceded by a blank. %F is replaced by the date in the format %Y-%m-%d. %G is replaced by the ISO 8601 year with century as a decimal number. %g is replaced by the ISO 8601 year without century as a decimal number (00-99). %H is replaced by the hour (24-hour clock) as a decimal number (00-23). %I is replaced by the hour (12-hour clock) as a decimal number (01-12). %j is replaced by the day of the year as a decimal number (001-366). %k is replaced by the hour (24-hour clock) as a decimal number (0-23); single digits are preceded by a blank. %l is replaced by the hour (12-hour clock) as a decimal number (1-12); single digits are preceded by a blank. %M is replaced by the minute as a decimal number (00-59). %m is replaced by the month as a decimal number (01-12). %n is replaced by a newline. %p is replaced by the locale's equivalent of either AM or PM. %R is replaced by the time in the format %H:%M. %r is replaced by the locale's representation of 12-hour clock time using AM/PM notation. %S is replaced by the second as a decimal number (00-60). %s is replaced by the number of seconds since the Epoch, UTC (see mktime(3)). %T is replaced by the time in the format %H:%M:%S. %t is replaced by a tab. %U is replaced by the week number of the year (Sunday as the first day of the week) as a decimal number (00-53). %u is replaced by the weekday (Monday as the first day of the week) as a decimal number (1-7). %V is replaced by the week number of the year (Monday as the first day of the week) as a decimal number (01-53). If the week containing January 1 has four or more days in the new year, then it is week 1; otherwise it is week 53 of the previous year, and the next week is week 1. %W is replaced by the week number of the year (Monday as the first day of the week) as a decimal number (00-53). %w is replaced by the weekday (Sunday as the first day of the week) as a decimal number (0-6). %X is replaced by the locale's appropriate time represen- tation. %x is replaced by the locale's appropriate date represen- tation. %Y is replaced by the year with century as a decimal number. %y is replaced by the year without century as a decimal number (00-99). %Z is replaced by the time zone name, or by the empty string if this is not determinable. %z is replaced by the offset from UTC in the format +HHMM or -HHMM as appropriate, with positive values representing locations east of Greenwich, or by the empty string if this is not determinable. %% is replaced by a single %. %+ is replaced by the date and time in date(1) format. SEE ALSO date(1), getenv(3), newctime(3), newtzset(3), time(2), tzfile(5)

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Gaza bomb time
by Jesper Norgaard Welen Oct. 20, 2003

Oct. 20, 2003

Recently there was an incident in the Gaza Strip, where 3 american soldiers were killed. This might or might not interest you, but it so happens that an article about the incident casts doubt on when the Gaza Strip leaves Daylight Saving. As far as I can tell we haven't received any new information about DST in Occupied Palestinian Territory since 1999. The article is http://www.washingtonpost.com/wp-dyn/articles/A32510-2003Oct15.html "Bomb Kills 3 Americans In Gaza Strip Guards Were Escorting U.S. Diplomatic Convoy By Molly Moore and John Ward Anderson Washington Post Foreign Service Thursday, October 16, 2003; Page A01 ... The attack occurred at about 10:15 a.m. (4:15 a.m. EDT) Wednesday, five hours after the United States vetoed a U.N. Security Council resolution that would have condemned Israel for building a controversial fence around the West Bank, and as Israeli soldiers in the southern Gaza Strip continued a six-day-old operation to destroy cross-border tunnels. Eight Palestinians have been killed and more than 230 homes have been destroyed or severely damaged in that operation." Here is WTE output for the time 4.15 am EDT: When it is 4.15.00 am Wednesday 15. Oct 2003 -0400 EDT in USA - District of Columbia, Washington DC (GMT-5.0) ® - Daylight Saving is active then it is 11.15.00 am Wednesday 15. Oct 2003 +0300 EEST in Palestine (Gaza area), Gaza (GMT+2.0) ® - Daylight Saving is active DST start : 12.00.00 am Friday 18. Apr 2003 +0200 EET DST end : 12.00.00 am Friday 17. Oct 2003 +0300 EEST So the time was supposed to have been 11:15 am, not 10.15 am. Of course this is not a water-tight proof that the TZ database is wrong, but at least an indication that is worth investigating. Can anyone come up with more authoritative information about this? Regards, 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 Download the free program World Time Explorer, I made: http://www.cimmyt.org/timezone/index.htm

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Time zone boundaries for multizone countries
by Oscar van Vlijmen Oct. 19, 2003

Oct. 19, 2003

How many details should a time zone application give? It is sometimes difficult to find out in which time zone a certain city is situated. The TZ database files give good clues. If in any doubt, one has to find out the geographic coordinates and look on a map to find out in which zone these coordinates are situated. Some time zone servers and applications give somewhere between 50 and 10000 well known place names, but on this world there are at least 6 million locations with a name - 2 million in the US <http://geonames.usgs.gov/>, 4 million in the rest of the world <http://164.214.2.59/gns/html/index.html> (NIMA GEOnet). I produced a web page with a bit more detailed information about the provinces, regions, oblasty, aimags, island groups, counties and the like of countries with more than 1 time zone. Some countries were omitted because the TZ datafiles are specific enough. <http://home-4.tiscali.nl/~t876506/Multizones.html> Details: * USA: all states are mentioned, with a complete county list of states, divided by a time zone boundary. * Canada: only a bit more detailed than the TZ northamerica file; note the longitudes mentioned for Nunavut, Québec and Ontario. * Mexico: complete list of all provinces. Names with diacritics. * Brazil. No more details than TZ southamerica file, but names with diacritics. * Russia: no more details than TZ europe file, but better transliterations of the regions in the Sakha republic. * Kazakhstan: complete list of all provinces with the old Russian names and the new Kazakh names. * Mongolia: complete list of all provinces, including names with diacritics. * Australia: no more details than TZ australasia file. * Indonesia: listing with many regions and islands. * Kiribati, Federated States of Micronesia: listings with many islands and some places. * Greenland: no more details than TZ europe file. Corrections are welcome! Oscar van Vlijmen 2003-10-18

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