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September 1993

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tzcode93e.tar.Z and tzdata93e.tar.Z
by ado 05 Sep '93

05 Sep '93

Updated versions of the time zone stuff are available by anonymous ftp from elsie.nci.nih.gov (128.231.16.1); you'll want the files tzcode93e.tar.Z and tzdata93e.tar.Z from the "pub" directory. There's updated data for Israel, England, and Kwajalein; there's also an update to "zdump" to cope with Kwajalein's 24-hour jump. Thanks to Paul Eggert and Peter Ilieve for the changes. --ado

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latest entries for Israeli time zones
by eggert＠twinsun.com 05 Sep '93

05 Sep '93

After I wrote a note in comp.risks about Solaris 2.2 time zone bugs, I got a message from Yitschak Goldberg <yits(a)eandm.co.il> that the latest Olson tables weren't right either. After asking around, Ephraim Silverberg kindly sent me his latest info; I enclose his note at the end of this message. So I propose the following patch to the `asia' file. ----- start of patch ----- =================================================================== RCS file: asia,v retrieving revision 7.4 retrieving revision 7.4.1.1 diff -c -r7.4 -r7.4.1.1 *** asia 1993/06/18 03:34:10 7.4 --- asia 1993/09/05 09:58:16 7.4.1.1 *************** *** 89,315 **** # year; as information, regarding exact times and dates during this period, # is not readily available at the present time, the rules commence starting # with the year 1989. - # - # From 1989 onwards the rules are as follows: - # - # 1. Daylight Savings Time commences midnight of the first Saturday night - # following the seven-day festival of Pesach (Passover). The transition - # is from midnight Israel Standard Time to 1 a.m. Israel Daylight Savings - # time. As the Pesach festival is dependent on the Lunar calendar (the - # first day is always on the 15th day of the month of Nisan), the rule - # changes every year on the Gregorian calendar. - # - # 2. Standard Time is reinstated on the Saturday night whereupon Jews - # following the Ashkenazi (European) rite begin to recite the Selichot - # (forgiveness) prayers prior to the Jewish Lunar New Year. The transition - # is from midnight Israel Daylight Savings time to 11 p.m. Israel Standard - # Time. The law (according to the Ashkenazi custom) concerning the - # commencement of the Selichot prayers is described in chapter 128, section - # 5 of the "Code of Jewish Law," by Rabbi Shlomo Ganzfried (translated by - # Hyman E. Goldin): - # - # Beginning with the Sunday [**] before Rosh Hashanah [***], - # we rise early for the service of Selichot (supplications for - # forgiveness). If Rosh Hashanah occurs on Monday or Tuesday, we - # begin saying the Selichot from the Sunday of the preceding week. - # - # This, too, varies from year to year on the Gregorian calendar and, thus, - # two explicit timezone rules are required for each Gregorian year. - # - # [**] actually Saturday night as the Jewish day commences at nightfall. - # [***] the Jewish Lunar New Year. ! # From Paul Eggert (June 16, 1993). Ed Reingold and I converted the above ! # rules into the following Emacs lisp code. It requires GNU Emacs 19.13 ! # or later. If you run the code, the Zion rules will be inserted into ! # your Emacs buffer. Reference: ``Calendrical Calculations'' by Nachum ! # Dershowitz and Edward M. Reingold, Software--Practice and Experience, ! # Volume 20, Number 9 (September, 1990), pages 899-928. # ! # (calendar-for-loop ! # year from 1989 to 2037 do ! # (let ((dst-starts ! # (calendar-gregorian-from-absolute ! # (calendar-dayname-on-or-before ! # 0 ! # (calendar-absolute-from-hebrew ! # (list 1 28 (+ year 3760)))))) ! # (dst-ends ! # (calendar-gregorian-from-absolute ! # (calendar-dayname-on-or-before ! # 0 ! # (- (calendar-absolute-from-hebrew (list 7 1 (+ year 3761))) 3))))) ! # (insert (format "Rule\tZion\t%d\tonly\t-\t%3s\t%2d\t0:00\t1:00\tD\n" ! # year ! # (substring ! # (calendar-month-name (extract-calendar-month dst-starts)) ! # 0 3) ! # (extract-calendar-day dst-starts))) ! # (insert (format "Rule\tZion\t%d\tonly\t-\t%3s\t%2d\t0:00\t0:00\tS\n" ! # year ! # (substring ! # (calendar-month-name (extract-calendar-month dst-ends)) ! # 0 3) ! # (extract-calendar-day dst-ends))))) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 1989 only - Apr 30 0:00 1:00 D ! Rule Zion 1989 only - Sep 24 0:00 0:00 S ! Rule Zion 1990 only - Apr 22 0:00 1:00 D ! Rule Zion 1990 only - Sep 16 0:00 0:00 S ! Rule Zion 1991 only - Apr 7 0:00 1:00 D Rule Zion 1991 only - Sep 1 0:00 0:00 S ! Rule Zion 1992 only - Apr 26 0:00 1:00 D ! Rule Zion 1992 only - Sep 20 0:00 0:00 S ! Rule Zion 1993 only - Apr 18 0:00 1:00 D ! Rule Zion 1993 only - Sep 12 0:00 0:00 S ! Rule Zion 1994 only - Apr 3 0:00 1:00 D ! Rule Zion 1994 only - Aug 28 0:00 0:00 S ! Rule Zion 1995 only - Apr 23 0:00 1:00 D ! Rule Zion 1995 only - Sep 17 0:00 0:00 S ! Rule Zion 1996 only - Apr 14 0:00 1:00 D ! Rule Zion 1996 only - Sep 8 0:00 0:00 S ! Rule Zion 1997 only - May 4 0:00 1:00 D ! Rule Zion 1997 only - Sep 28 0:00 0:00 S ! Rule Zion 1998 only - Apr 19 0:00 1:00 D ! Rule Zion 1998 only - Sep 13 0:00 0:00 S ! Rule Zion 1999 only - Apr 11 0:00 1:00 D ! Rule Zion 1999 only - Sep 5 0:00 0:00 S ! Rule Zion 2000 only - Apr 30 0:00 1:00 D ! Rule Zion 2000 only - Sep 24 0:00 0:00 S ! Rule Zion 2001 only - Apr 15 0:00 1:00 D ! Rule Zion 2001 only - Sep 9 0:00 0:00 S ! Rule Zion 2002 only - Apr 7 0:00 1:00 D ! Rule Zion 2002 only - Sep 1 0:00 0:00 S ! Rule Zion 2003 only - Apr 27 0:00 1:00 D ! Rule Zion 2003 only - Sep 21 0:00 0:00 S ! Rule Zion 2004 only - Apr 18 0:00 1:00 D ! Rule Zion 2004 only - Sep 12 0:00 0:00 S ! Rule Zion 2005 only - May 1 0:00 1:00 D ! Rule Zion 2005 only - Sep 25 0:00 0:00 S ! Rule Zion 2006 only - Apr 23 0:00 1:00 D ! Rule Zion 2006 only - Sep 17 0:00 0:00 S ! Rule Zion 2007 only - Apr 15 0:00 1:00 D ! Rule Zion 2007 only - Sep 9 0:00 0:00 S ! Rule Zion 2008 only - Apr 27 0:00 1:00 D ! Rule Zion 2008 only - Sep 21 0:00 0:00 S ! Rule Zion 2009 only - Apr 19 0:00 1:00 D ! Rule Zion 2009 only - Sep 13 0:00 0:00 S ! Rule Zion 2010 only - Apr 11 0:00 1:00 D ! Rule Zion 2010 only - Sep 5 0:00 0:00 S ! Rule Zion 2011 only - May 1 0:00 1:00 D ! Rule Zion 2011 only - Sep 25 0:00 0:00 S ! Rule Zion 2012 only - Apr 15 0:00 1:00 D ! Rule Zion 2012 only - Sep 9 0:00 0:00 S ! Rule Zion 2013 only - Apr 7 0:00 1:00 D ! Rule Zion 2013 only - Sep 1 0:00 0:00 S ! Rule Zion 2014 only - Apr 27 0:00 1:00 D ! Rule Zion 2014 only - Sep 21 0:00 0:00 S ! Rule Zion 2015 only - Apr 12 0:00 1:00 D ! Rule Zion 2015 only - Sep 6 0:00 0:00 S ! Rule Zion 2016 only - May 1 0:00 1:00 D ! Rule Zion 2016 only - Sep 25 0:00 0:00 S ! Rule Zion 2017 only - Apr 23 0:00 1:00 D ! Rule Zion 2017 only - Sep 17 0:00 0:00 S ! Rule Zion 2018 only - Apr 8 0:00 1:00 D ! Rule Zion 2018 only - Sep 2 0:00 0:00 S ! Rule Zion 2019 only - Apr 28 0:00 1:00 D ! Rule Zion 2019 only - Sep 22 0:00 0:00 S ! Rule Zion 2020 only - Apr 19 0:00 1:00 D ! Rule Zion 2020 only - Sep 13 0:00 0:00 S ! Rule Zion 2021 only - Apr 4 0:00 1:00 D ! Rule Zion 2021 only - Aug 29 0:00 0:00 S ! Rule Zion 2022 only - Apr 24 0:00 1:00 D ! Rule Zion 2022 only - Sep 18 0:00 0:00 S ! Rule Zion 2023 only - Apr 16 0:00 1:00 D ! Rule Zion 2023 only - Sep 10 0:00 0:00 S ! Rule Zion 2024 only - May 5 0:00 1:00 D ! Rule Zion 2024 only - Sep 29 0:00 0:00 S ! Rule Zion 2025 only - Apr 20 0:00 1:00 D ! Rule Zion 2025 only - Sep 14 0:00 0:00 S ! Rule Zion 2026 only - Apr 12 0:00 1:00 D ! Rule Zion 2026 only - Sep 6 0:00 0:00 S ! Rule Zion 2027 only - May 2 0:00 1:00 D ! Rule Zion 2027 only - Sep 26 0:00 0:00 S ! Rule Zion 2028 only - Apr 23 0:00 1:00 D ! Rule Zion 2028 only - Sep 17 0:00 0:00 S ! Rule Zion 2029 only - Apr 8 0:00 1:00 D ! Rule Zion 2029 only - Sep 2 0:00 0:00 S ! Rule Zion 2030 only - Apr 28 0:00 1:00 D ! Rule Zion 2030 only - Sep 22 0:00 0:00 S ! Rule Zion 2031 only - Apr 20 0:00 1:00 D ! Rule Zion 2031 only - Sep 14 0:00 0:00 S ! Rule Zion 2032 only - Apr 4 0:00 1:00 D ! Rule Zion 2032 only - Aug 29 0:00 0:00 S ! Rule Zion 2033 only - Apr 24 0:00 1:00 D ! Rule Zion 2033 only - Sep 18 0:00 0:00 S ! Rule Zion 2034 only - Apr 16 0:00 1:00 D ! Rule Zion 2034 only - Sep 10 0:00 0:00 S ! Rule Zion 2035 only - May 6 0:00 1:00 D ! Rule Zion 2035 only - Sep 30 0:00 0:00 S ! Rule Zion 2036 only - Apr 20 0:00 1:00 D ! Rule Zion 2036 only - Sep 14 0:00 0:00 S ! Rule Zion 2037 only - Apr 12 0:00 1:00 D ! Rule Zion 2037 only - Sep 6 0:00 0:00 S # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] Zone Israel 2:00 Zion I%sT - - # The following is a chart of the day of the week and Gregorian date of - # the first day of Pesach and the first day of Rosh Hashanah for the years - # 1989 through 2009 inclusive. - # - # First Day of Passover - # --------------------- - # Gregorian Year Day of Week Month Day - # -------------- ----------- ----- --- - # 1989 Thursday April 20 - # 1990 Tuesday April 10 - # 1991 Saturday March 30 - # 1992 Saturday April 18 - # 1993 Tuesday April 6 - # 1994 Sunday March 27 - # 1995 Saturday April 15 - # 1996 Thursday April 4 - # 1997 Tuesday April 22 - # 1998 Saturday April 11 - # 1999 Thursday April 1 - # 2000 Thursday April 20 - # 2001 Sunday April 8 - # 2002 Thursday March 28 - # 2003 Thursday April 17 - # 2004 Tuesday April 6 - # 2005 Sunday April 24 - # 2006 Thursday April 13 - # 2007 Tuesday April 3 - # 2008 Sunday April 20 - # 2009 Thursday April 9 - # - # First Day of Rosh Hashanah - # -------------------------- - # Gregorian Year Day of Week Month Day - # -------------- ----------- ----- --- - # 1989 Saturday September 30 - # 1990 Thursday September 20 - # 1991 Monday September 9 - # 1992 Monday September 28 - # 1993 Thursday September 16 - # 1994 Tuesday September 6 - # 1995 Monday September 25 - # 1996 Saturday September 14 - # 1997 Thursday October 2 - # 1998 Monday September 21 - # 1999 Saturday September 11 - # 2000 Saturday September 30 - # 2001 Tuesday September 18 - # 2002 Saturday September 7 - # 2003 Saturday September 27 - # 2004 Thursday September 16 - # 2005 Tuesday October 4 - # 2006 Saturday September 23 - # 2007 Thursday September 13 - # 2008 Tuesday September 30 - # 2009 Saturday September 19 ############################################################################### --- 89,132 ---- # year; as information, regarding exact times and dates during this period, # is not readily available at the present time, the rules commence starting # with the year 1989. ! # From Ephraim Silverberg (September 5, 1993): # ! # According to the Office of the Secretary General of the Ministry of ! # Interior, there is NO set rule for Daylight-Savings/Standard time changes. ! # Each year they decide anew what havoc to wreak on the country. However, ! # there is a "supposed" set of rules which is subject to change depending ! # on the party the Minister of Interior, the size of the coalition ! # government, the phase of the moon and the direction of the wind. Hence, ! # changes may need to be made on a semi-annual basis. One thing is entrenched ! # in law, however: that there must be at least 150 days on daylight savings ! # time annually. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 1989 only - Apr 30 0:00 1:00 D ! Rule Zion 1989 only - Sep 3 0:00 0:00 S ! Rule Zion 1990 only - Mar 25 0:00 1:00 D ! Rule Zion 1990 only - Aug 26 0:00 0:00 S ! Rule Zion 1991 only - Mar 24 0:00 1:00 D Rule Zion 1991 only - Sep 1 0:00 0:00 S ! Rule Zion 1992 only - Mar 29 0:00 1:00 D ! Rule Zion 1992 only - Sep 6 0:00 0:00 S ! Rule Zion 1993 only - Apr 2 0:00 1:00 D ! Rule Zion 1993 only - Sep 5 0:00 0:00 S + # The dates for 1994-1995 were obtained from Office of the Spokeswoman for + # the Ministry of Interior, Jerusalem. There are no dates yet for 1996 and + # beyond so your guess is as good as theirs (those who are interested can + # call 972-2-701411 and ask for the spokeswoman). + + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S + Rule Zion 1994 only - Apr 1 0:00 1:00 D + Rule Zion 1994 only - Aug 28 0:00 0:00 S + Rule Zion 1995 only - Mar 31 0:00 1:00 D + Rule Zion 1995 only - Aug 27 0:00 0:00 S + # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] Zone Israel 2:00 Zion I%sT ############################################################################### ----- end of patch ----- From: Ephraim Silverberg <ephraim(a)CS.HUJI.AC.IL> Subject: Re: bugs in entries for Israeli time zones? To: eggert(a)twinsun.com (Paul Eggert) Date: Sun, 5 Sep 93 11:12:02 EET In-Reply-To: <9309022041.AA15967(a)spot.twinsun.com>; from "Paul Eggert" at Sep 2, 93 1:40 pm > The latest version of Arthur David Olson's time zone package claims that > Israel switches from summer time to winter time on September 12. But Yitschak > Goldberg <yits(a)eandm.co.il> writes that it really switches on Sept. 5 this > year. Here is the current entry. Could you tell me what sort of corrections > are needed? I'd like to forward the fixes to Olson (and also to Richard > Stallman, the Emacs author). > > I'm interested in both the historical dates that the time zones changed, and > in the current rules (even if they are likely to change soon). Please don't > feel that you need to make detailed corrections to all this glop! I just > need to know what the current rules are and what the actual transitions > were between 1989 and now. Thanks for any help you can provide. Hi. Appended is the ZIC file with the most current information. Ephraim -------------------------------------------------------------------------------- # Zone Information Compiler (ZIC) File for the State of Israel (1989-2009) # According to the Office of the Secretary General of the Ministry of # Interior, there is NO set rule for Daylight-Savings/Standard time changes. # Each year they decide anew what havoc to wreak on the country. However, # there is a "supposed" set of rules which is subject to change depending # on the party the Minister of Interior, the size of the coalition # government, the phase of the moon and the direction of the wind. Hence, # changes may need to be made on a semi-annual basis. One thing is entrenched # in law, however: that there must be at least 150 days on daylight savings # time annually. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 1989 only - Apr 30 0:00 1:00 D Rule Zion 1989 only - Sep 3 0:00 0:00 S Rule Zion 1990 only - Mar 25 0:00 1:00 D Rule Zion 1990 only - Aug 26 0:00 0:00 S Rule Zion 1991 only - Mar 24 0:00 1:00 D Rule Zion 1991 only - Sep 1 0:00 0:00 S Rule Zion 1992 only - Mar 29 0:00 1:00 D Rule Zion 1992 only - Sep 6 0:00 0:00 S Rule Zion 1993 only - Apr 2 0:00 1:00 D Rule Zion 1993 only - Sep 5 0:00 0:00 S # The dates for 1994-1995 were obtained from Office of the Spokeswoman for # the Ministry of Interior, Jerusalem. There are no dates yet for 1996 and # beyond so your guess is as good as theirs (those who are interested can # call 972-2-701411 and ask for the spokeswoman). # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 1994 only - Apr 1 0:00 1:00 D Rule Zion 1994 only - Aug 28 0:00 0:00 S Rule Zion 1995 only - Mar 31 0:00 1:00 D Rule Zion 1995 only - Aug 27 0:00 0:00 S # These rules are probably wrong, but they are close approximations (usually # withing two weeks): # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Zion 1996 only - Apr 14 0:00 1:00 D Rule Zion 1996 only - Sep 8 0:00 0:00 S Rule Zion 1997 only - May 4 0:00 1:00 D Rule Zion 1997 only - Sep 28 0:00 0:00 S Rule Zion 1998 only - Apr 19 0:00 1:00 D Rule Zion 1998 only - Sep 13 0:00 0:00 S Rule Zion 1999 only - Apr 11 0:00 1:00 D Rule Zion 1999 only - Sep 5 0:00 0:00 S Rule Zion 2000 only - Apr 30 0:00 1:00 D Rule Zion 2000 only - Sep 24 0:00 0:00 S Rule Zion 2001 only - Apr 15 0:00 1:00 D Rule Zion 2001 only - Sep 9 0:00 0:00 S Rule Zion 2002 only - Apr 7 0:00 1:00 D Rule Zion 2002 only - Sep 1 0:00 0:00 S Rule Zion 2003 only - Apr 27 0:00 1:00 D Rule Zion 2003 only - Sep 21 0:00 0:00 S Rule Zion 2004 only - Apr 18 0:00 1:00 D Rule Zion 2004 only - Sep 12 0:00 0:00 S Rule Zion 2005 only - May 1 0:00 1:00 D Rule Zion 2005 only - Sep 25 0:00 0:00 S Rule Zion 2006 only - Apr 23 0:00 1:00 D Rule Zion 2006 only - Sep 17 0:00 0:00 S Rule Zion 2007 only - Apr 15 0:00 1:00 D Rule Zion 2007 only - Sep 9 0:00 0:00 S Rule Zion 2008 only - Apr 27 0:00 1:00 D Rule Zion 2008 only - Sep 21 0:00 0:00 S Rule Zion 2009 only - Apr 19 0:00 1:00 D Rule Zion 2009 only - Sep 13 0:00 0:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Israel 2:00 Zion I%sT

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