Israel Zone Info File

Ephraim Silverberg ephraim%techunix.bitnet at icsa.rice.edu
Wed May 3 20:39:44 AEST 1989


The zone information for Israel (binary in /usr/lib/zoneinfo/Israel and
source in /usr/lib/zoneinfo/asia) as distributed in SunOS 4.0 is incorrect
-- even the GMT offset is wrong (though our country's main Unix guru
informs me that he has seen this error repeatedly from other vendors such
as BSD, DEC, Gould and Stride).  The rules for daylight savings time in
the 4.0 zic file are not even close to reality.

The following is the correct zic file for the years 1989-2009 (assuming
that the legislation governing timezones is not amended in the interim).

Enjoy,
Ephraim

Disclaimer: The views expressed here are my own and not that of the Technion.

#------------------------------CUT-HERE---------------------------------------
# Zone Information Compiler (ZIC) File for the State of Israel (1989-2009)

# Prior to 1989, the rules concerning Daylight Savings Time changed every
# 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.

# 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

# Zone  NAME                    GMTOFF  RULES   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
#----------------------------UNTIL-HERE---------------------------------------



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