I have received the February, 2000 edition of the Standard Schedules Information Manual (SSIM) from IATA. What follows is a narrative list of changes from the previous edition (September, 1999). It may be that neither edition is completely correct, but differences between them are probably indicative of actual changes in the real world. Argentina: had been on UTC-3 for several years. The new SSIM says that Argentina is using UTC-4 as its standard time and observing DST throughout the country from midnight (local time) at the start of the first Sunday in October until midnight (local DST) start of the first Sunday in March. As usual, there is no indication of when this change took effect. Although the SSIM lists the beginning of DST in October, 1999, it may be that Argentina simply remained on standard time last October, but started thinking of it as DST. Australia: Tasmania will deviate from its normal rule to begin DST on August 27, 2000, in synch with Sydney. Brazil: A number of states that didn't observe DST are supposed to have begun using it on October 3, 1999. They are Alagoas, Sergipe, Ceara, Maranhao, Paraiba, Pernambuco, Piaui, and Rio Grande do Norte (UTC-3 standard time), and Roraima (UTC-4). Chile: will switch to DST on October 15, 2000, instead of October 8 as previously reported. The end of DST has been moved a week earlier, to come on the second Sunday of March instead of the third. Estonia: will remain on standard time (UTC+2) year-round. Israel: the dates for the beginning and end of DST in 2000 have been changed to April 14 and September 14, respectively. The dates for the following two years remain unchanged. Jordan: was shown remaining on standard time year round in the SSIM dated September, 1999 only. In all other editions since 1991, including the present one, it is shown on UTC+2, with DST in the summer. The change dates shown in the February, 2000 edition are different from previous editions. It says that DST runs from midnight (local time) at the start of the last Thursday in March until 1:00 (local DST) of the last Thursday in September. Lithuania: is said to have moved from UTC+1 (with DST) to UTC+2 (with DST). The dates and times of DST start and end, shown in UTC, are unaltered. There is no indication of when this change occurred. Paraguay: The beginning of DST in 1999 has been changed from October 3 to October 10, in both cases at midnight local time. Sudan: changed from UTC+2 to UTC+3. Tonga: For 1999-2000 only, Tonga is shown observing DST from 2:00 (local time) on October 1, 1999 to 3:00 (local DST) on April 15, 2000. Yours, Gwillim Law
From: "Law, Gwil Jr. " <Gwil_Law@bridge-point.com> Date: Tue, 29 Feb 2000 14:00:41 -0500 Paraguay: The beginning of DST in 1999 has been changed from October 3 to October 10, in both cases at midnight local time. This is news; thanks! Unless better info arrives my next proposed patch will assume that they switch the 2nd Sunday in October and the last Sunday in February. Jordan: was shown remaining on standard time year round in the SSIM dated September, 1999 only. In all other editions since 1991, including the present one, it is shown on UTC+2, with DST in the summer. Jordan Week reported (via Steffen Thorsen) that in 1999 Jordan observed DST from Jul 1 to Sep 30. The change dates shown in the February, 2000 edition are different from previous editions. It says that DST runs from midnight (local time) at the start of the last Thursday in March until 1:00 (local DST) of the last Thursday in September. This is news too; thanks. I'll include this as part of my next proposed patch. Although the SSIM lists the beginning of DST in October, 1999, it may be that Argentina simply remained on standard time last October, but started thinking of it as DST. Yes, that's what Rives McDow reported on 2000-01-10. Chile: will switch to DST on October 15, 2000, instead of October 8 as previously reported. The end of DST has been moved a week earlier, to come on the second Sunday of March instead of the third. Since spring 1969, Chile has always switched at 24:00 on the second Saturday of October, except for the drought year 1998/1999 when it switched at 00:00 on September 27 and April 4. I hope this matches the corrected IATA data. The phrase "the second Sunday of March" isn't quite correct: the switch actually occurs at 00:00 on the Sunday after the second Saturday of March. Israel: the dates for the beginning and end of DST in 2000 have been changed to April 14 and September 14, respectively. This isn't correct, perhaps because the SSIM's data predate the Israeli government's announcement on 2000-01-16 that the dates are April 14 and October 22. Ephraim Silverberg put a copy of this announcement at: ftp://ftp.huji.ac.il/pub/tz/announcements/2000-2002.ps.gz Lithuania: is said to have moved from UTC+1 (with DST) to UTC+2 (with DST). The dates and times of DST start and end, shown in UTC, are unaltered. There is no indication of when this change occurred. ELTA No. 972 (2582) (1999-09-29) reported (via Steffen Thorsen) that this occurred at the logical time, on October 31. Sudan: changed from UTC+2 to UTC+3. Yes. http://www.sunanews.net/sn13jane.html says this occurred on 2000-01-15 at noon local time. I'll include this in the next proposed tz patch. Tonga: For 1999-2000 only, Tonga is shown observing DST from 2:00 (local time) on October 1, 1999 to 3:00 (local DST) on April 15, 2000. But http://www.tongaonline.com/news/sept1799.html says that DST will be observed after 1999/2000 in Tonga. Did they change their minds since then? (Or perhaps the IATA's source was skeptical that they'd stick with their plan? :-)
On Tue, 29 Feb 2000, Paul Eggert wrote:
From: "Law, Gwil Jr. " <Gwil_Law@bridge-point.com> Date: Tue, 29 Feb 2000 14:00:41 -0500
Paraguay: The beginning of DST in 1999 has been changed from October 3 to October 10, in both cases at midnight local time.
This is news; thanks! Unless better info arrives my next proposed patch will assume that they switch the 2nd Sunday in October and the last Sunday in February.
It is probably correct that they changed October 10, as I've also had a report on this back in October, but I was not able to get more information then.
Although the SSIM lists the beginning of DST in October, 1999, it may be that Argentina simply remained on standard time last October, but started thinking of it as DST.
Yes, that's what Rives McDow reported on 2000-01-10.
Argentina does not seem to turn back the clocks one hour on March 5 as expected. Actually, it seems that Argentina has simply been using their standard UTC-3 "all the time", with no UTC-4+DST at all. I have not been able to find this confirmed by a newspaper etc. yet, as most are written in Spanish. I got this message from Peter Gradelski (PGRADELSKI@bloomberg.net)
Good morning: accoring to your page, argentina will go off dst on march 5th but we just checked with our San Paulo office and they say the government of argentina decided not to become one of the countries that go on or off DST. So buenos aires should be -3 hours from GMT at all times.
Best regards, Steffen -- Steffen Thorsen - webmaster http://www.timeanddate.com/
participants (3)
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Law, Gwil Jr. -
Paul Eggert -
Steffen Thorsen