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Two tzcode fixes
by Petr Baudis March 7, 2007

March 7, 2007

(Resending with correct mailing list address.) Hi, when checking a diff between tzcode2006o and the current glibc CVS, I've noticed two changes in glibc which were AFAICS never pushed upstream. Both were committed by Ulrich Drepper: [PATCH] (tofile;): Fix typo in symlink creation. Tue, 20 Dec 2005 07:55:45 +0000 timezone/zic.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/timezone/zic.c b/timezone/zic.c index 57dc531..4e3f42f 100644 --- a/timezone/zic.c +++ b/timezone/zic.c @@ -650,7 +650,7 @@ const char * const tofile; "../"); symlinkcontents = ecatalloc(symlinkcontents, - fromfile); + fromname); result = symlink(symlinkcontents, toname); if (result == 0) [PATCH] Fix spelling in message. Thu, 21 Sep 2006 03:57:30 +0000 timezone/zdump.c | 2 +- 8 files changed, 8 insertions(+), 8 deletions(-) diff --git a/timezone/zdump.c b/timezone/zdump.c index 45ce641..d525da1 100644 --- a/timezone/zdump.c +++ b/timezone/zdump.c @@ -389,7 +389,7 @@ _("%s: usage is %s [ --version ] [ -v ] } if (fflush(stdout) || ferror(stdout)) { (void) fprintf(stderr, "%s: ", progname); - (void) perror(_("Error writing standard output")); + (void) perror(_("Error writing to standard output")); exit(EXIT_FAILURE); } exit(EXIT_SUCCESS); -- Petr "Pasky" Baudis Stuff: http://pasky.or.cz/ The meaning of Stonehenge in Traflamadorian, when viewed from above, is: "Replacement part being rushed with all possible speed." -- Kurt Vonnegut, Sirens from Titan

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March madness continues in U.S., Canada, etc.
by Paul Eggert March 6, 2007

March 6, 2007

For the next week or so we can expect to see a lot more publicity about the impending daylight-saving change in the U.S., Canada, etc., which first hits our clocks Sunday (typically at 02:00). Google News currently lists about 1700 news articles on the subject of "daylight saving", and we can expect that number to climb. Nobody has time to read all this stuff, but here are a few selected items, if you care for this sort of thing. (Disclaimer: I contributed to some of them.) Lists of vendor advisories: http://www.calconnect.org/dstlinks.html http://www.reganfamily.ca/dst/ There is now a Wikipedia page just for this event, which contains more vendor advisories (one for the tz database itself!): http://en.wikipedia.org/wiki/Y2K7#Zoneinfo A good summary of Y2K7, suitable for non-techies, is: Steve Lohr, "Time change a 'mini-Y2K in tech terms", New York Times <http://www.nytimes.com/2007/03/05/technology/05daylight.html?em&ex=11733300…> (2007-03-05). Gartner has estimated IT costs between $500 million and $1 billion; see Ben Arnoldy, "Latest computer glitch: daylight saving time", Christian Science Monitor <http://www.csmonitor.com/2007/0307/p02s01-stct.html> (2007-03-07). In an informal poll taken yesterday at a Computerworld IT conference, 52% of respondents said that they were done with upgrading, 39% said they're not done yet, 4% said they hadn't even started (!), and 4% said they didn't know the change was coming (!!). The related story said that Microsoft is still issuing patches. Todd R. Weiss, "Premier 100: Conference attendees deal with daylight-saving time fixes from afar", Computerworld <http://www.computerworld.com/action/article.do?command=viewArticleBasic&art…> (2007-03-06). PG&E, the main utility in northern California, estimated that it'd take $38 million for them to upgrade their meters to account for daylight-saving time. Instead, they got permission from the California Public Utilities Commission to change their billing algorithm during the affected period -- i.e., they changed the rules rather than fixing their clocks. Paul McDougall, "PG&E Says Patching Meters For An Early Daylight-Saving Time Will Cost $38 Million", InformationWeek <http://www.informationweek.com/news/showArticle.jhtml?articleID=197700487> (2007-03-01)

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FW: Brazil DST Rules for 2007
by Olson, Arthur David (NIH/NCI) [E] March 6, 2007

March 6, 2007

I'm forwarding this message from Amar Devegowda, who is not on the time zone mailing list. Those of you who are on the time zne mailing list should direct repllies appropriately. --ado ________________________________ From: Amar Devegowda [mailto:ADEVEGOW@in.ibm.com] Sent: Thursday, March 01, 2007 6:20 AM To: Olson, Arthur David (NIH/NCI) [E] Subject: Brazil DST Rules for 2007 Importance: High Hi Arthur, This is Amar Devegowda from IBM India Software Labs. It has been brought to our notice that the DST rules provided in Olsen Time Zone Database and actual DST rules in Brazil for year 2007 and beyond are different. In 2007, as per the Olsen the DST starts on the first Sunday that comes on or after November 1st. However, the actual DST rule states that the DST starts on Oct 21st in 2007. Here are a couple of web sites that show these new DST rules upto 2009. http://www.worldtimezone.com/daylight.html http://www.timeanddate.com/worldclock/timezone.html?n=45&syear=2000 Hence, could you please update the time zone database with the new rules for Brazil in 2007 and beyond at the earliest ? Regards, Amar Amar Devegowda Java L3 Support for Windows, Java Technology Center, IBM India Software Labs, Bangalore, India Telephone 91-80-25094151

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FW: Atlantic/Faroe DST
by Olson, Arthur David (NIH/NCI) [E] March 5, 2007

March 5, 2007

I'm forwarding this message from Michael, who is not on the time zone mailing list. Those of you who are on the time zone mailing list should direct replies appropriately. --ado -----Original Message----- From: michael [mailto:crozierm@consumption.net] Sent: Friday, March 02, 2007 12:40 AM To: tz(a)lecserver.nci.nih.gov Subject: Atlantic/Faroe DST Hello, According to wikipedia authors, DST is observed in Faroe Islands. http://en.wikipedia.org/wiki/Faroe_islands According to TZ, it is not: Atlantic/Faroe Sat Dec 14 20:45:52 1901 UTC = Sat Dec 14 20:45:52 1901 Atlantic/Faroe isdst=0 gmtoff=0 Atlantic/Faroe Mon Jan 18 03:14:07 2038 UTC = Mon Jan 18 03:14:07 2038 Atlantic/Faroe isdst=0 gmtoff=0 Atlantic/Faroe Tue Jan 19 03:14:07 2038 UTC = Tue Jan 19 03:14:07 2038 Atlantic/Faroe isdst=0 gmtoff=0 I don't have any additional evidence to say which is correct, but I thought it worth noting. Thanks, Michael

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RE: Microsoft exec says Namibia and Iran have recently changed DSTrules
by Jesper Norgaard Welen March 5, 2007

March 5, 2007

John Gray, thanks for the quick feedback. Concerning problems in 2009 I think that many people loading the timezone updates in 2007 will not do so in 2009 if there were no actual rule changes since - so I recommend getting it right now. Namibia: I must admit I had not seen the -1.00 in Daylight Bias: My first comment is: this will work technically, as you claim! But is it the best way to do it? Actually "hora de verano de Namibia" means "summertime of Namibia", which will apply between April and September. Note that this use of summertime/wintertime is opposite to all other countries (I think) and also to the web links you sent. However, when you look it up in the list, all other countries are also listed for their wintertime, the GMT offset when not applying DST. Putting Windhoek as (GMT+02:00) is therefore a bit like reporting the revenue of 250 companies before tax, and 1 company after tax - it is just impractical for most purposes. Therefore if you want to call the period something different, for instance calling it summertime between April and September, better do the change only in the Abbreviations, so that Time Zone Name is (GMT+01:00) Windhoek, Abbreviation(1) is "Namibia summertime", Offset from GMT is +1:00, Start Day and Last Day are inversed, Daylight Bias is +1:00 and Abbreviation(2) is "Namibia wintertime". This will confuse less people, I think. Regards, - Jesper Nørgaard Welen >-----Original Message----- >From: John Gray [mailto:johngray@winse.microsoft.com] >Sent: Domingo, 04 de Marzo de 2007 20:23 >To: Jesper Norgaard Welen >Subject: RE: Microsoft exec says Namibia and Iran have recently changed DSTrules >Jesper, thanks for the info. Yes, we have been working very hard to get this all in place and still have a long way to go for some issues. >It looks like we may have a minor issue for 2009 but we should be able to address it with a custom set for that year. I've forwarded your observations to the people that own the >detailed specifics of our DST data for Windows. >For Namibia, oddly enough we have an internal email on file confirming this is the official preference of the government - note that we have a "-1 hour" offset for the DST period so the clocks and offsets will be correct, it is just the name that is in dispute (e.g. which period of the year to call "daylight saving"). From some of their websites, it looks like they simply use "summer time" and "winter time" without referring to either one as a "saving" time per-se. It is also entirely possible different organizations within their government may have different preferences here. >http://www.grnnet.gov.na/News/Archive/2001/March2001/Week4/release_winter_t ime.htm >http://www.grnnet.gov.na/News/Archive/2001/August/Week4/summer.htm >For Chile, yes I am aware we worked hard to get it right. Apparently their official documents defined the change to happen at "24:00" hours, which never actually occurs (I'm not sure if they ever fixed this). A classic case of we know what they meant, but causes us to do strange things in the digital world. >For the rest I'll have to wait for the experts to investigate. >Thanks again, >John Gray >Director, Windows Sustainability Engineering Services

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Mongolia not on DST in 2007
by Jesper Norgaard Welen March 3, 2007

March 3, 2007

Ganbold was kind enough to send me this link in Mongolian about Mongolia not applying DST this year. I guess it's the only web reference we have about this at the moment: >Good question. It wasn't Parliament resolution, it was >Mongolian government resolution and government members >made decision not to have daylight-saving. I couldn't access >Mongolian Government web site, I could only find some >mongolian references which I guess is not helpful to anybody >other than Mongolian. > >http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742 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 (55) 58-04-20-04 ext. 1374 Fax: +52 (55) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 Download the shareware program World Time Explorer, I made: http://www.worldtimeexplorer.com/index.html

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Microsoft exec says Namibia and Iran have recently changed DST rules
by Paul Eggert March 3, 2007

March 3, 2007

In an interview Microsoft published yesterday <http://www.microsoft.com/presspass/features/2007/mar07/03-01DaylightSaving.…> Rich Kaplan, Vice President of Microsoft Customer Service, Partners and Automation said "Namibia and Iran ratified changes even more recently" than December 2006. Has anyone else heard about this, or was Mr. Kaplan merely misinformed? Kaplan is also quoted as saying that Brazil and Israel are not on the Gregorian calendar, so I'm inclined to think the information got garbled a bit in translation....

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Cuba changing DST spring switch date this year to equal the US
by Paul Eggert March 3, 2007

March 3, 2007

On Wednesday, Granma, the official organ of the central committee of the Communist Party of Cuba, wrote that this year Cuba will advance its clocks on midnight, March 10. See <http://www.granma.cubaweb.cu/english/news/art89.html>. The official announcement was published (in Spanish) yesterday <http://www.granma.cubaweb.cu/2007/03/01/nacional/artic01.html>. The announcement doesn't say when the clocks switch back, but for lack of better info I guess we should assume that Cuba will use the US dates for spring and autumn, but switch at midnight standard time, which is their recent tradition. I'll send out a proposed patch soon. PS. I still haven't been able to find any official confirmation for the theory that Haiti will not observe DST this year. The IATA and timeanddate.com are consistent with this theory, but worldtimezone.com disagrees.

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Nunavut (2007)
by Chris Walton March 2, 2007

March 2, 2007

Looks like Nunavut (Territory in northern Canada) has finally decided to follow the rest of Canada and the United States. An amendment to the Interpretation Act was registered on February 19/2007. See page 18 of February's the Nunavut Gazette: http://action.attavik.ca/home/justice-gn/attach/2007/gaz02part2.pdf All of the assumptions that were made in the TZ database are now correct; no further changes are required. As per usual, I have updated my Canadian DST web page at http://www3.sympatico.ca/c.walton/canada_dst.html P.S. I came accross a little news article from Northern News Services dated November 13/2006. It claims that the community of Resolute (located on Conrnwallis Island in Nunavut) moved from Central Time to Eastern Time last November. Basically the community did not change its clocks at the end of daylight saving. It is not clear whether or not the clocks will change again on March 11 of if they will stay fixed on Eastern Standard Time. Technically this requires a new zone. Ouch. Is it worth it for a population of of 215 people? http://www.nnsl.com/frames/newspapers/2006-11/nov13_06none.html -chris

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Atlantic/Faroe DST
by michael March 2, 2007

March 2, 2007

Hello, According to wikipedia authors, DST is observed in Faroe Islands. http://en.wikipedia.org/wiki/Faroe_islands According to TZ, it is not: Atlantic/Faroe Sat Dec 14 20:45:52 1901 UTC = Sat Dec 14 20:45:52 1901 Atlantic/Faroe isdst=0 gmtoff=0 Atlantic/Faroe Mon Jan 18 03:14:07 2038 UTC = Mon Jan 18 03:14:07 2038 Atlantic/Faroe isdst=0 gmtoff=0 Atlantic/Faroe Tue Jan 19 03:14:07 2038 UTC = Tue Jan 19 03:14:07 2038 Atlantic/Faroe isdst=0 gmtoff=0 I don't have any additional evidence to say which is correct, but I thought it worth noting. Thanks, Michael

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