proposed time zone package change to africa file for Cairo
Arthur David Olson
olsona at lecserver.nci.nih.gov
Mon Apr 20 20:37:14 UTC 2009
Below is a proposed change (thanks to Petr Machata) for the end of DST in
Egypt in 2009 and forward. If not problems are found, this change should
show up in the ftpable version a week from today.
--ado
------- africa -------
*** /tmp/geta10010 Mon Apr 20 16:34:24 2009
--- /tmp/getb10010 Mon Apr 20 16:34:24 2009
***************
*** 1,4 ****
! # @(#)africa 8.18
# <pre>
# This data is by no means authoritative; if you think you know better,
--- 1,4 ----
! # @(#)africa 8.19
# <pre>
# This data is by no means authoritative; if you think you know better,
***************
*** 236,243 ****
# unless discontinued, next DST may end Thursday 28 August 2008.
# From Paul Eggert (2007-08-17):
# For lack of better info, assume the new rule is last Thursday in August.
- Rule Egypt 2008 max - Aug lastThu 23:00s 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Africa/Cairo 2:05:00 - LMT 1900 Oct
2:00 Egypt EE%sT
--- 236,282 ----
# unless discontinued, next DST may end Thursday 28 August 2008.
# From Paul Eggert (2007-08-17):
# For lack of better info, assume the new rule is last Thursday in August.
+ # From Petr Machata (2009-04-06):
+ # The following appeared in Red Hat bugzilla[1] (edited):
+ #
+ # > $ zdump -v /usr/share/zoneinfo/Africa/Cairo | grep 2009
+ # > /usr/share/zoneinfo/Africa/Cairo Thu Apr 23 21:59:59 2009 UTC =3D Thu =
+ # Apr 23
+ # > 23:59:59 2009 EET isdst=3D0 gmtoff=3D7200
+ # > /usr/share/zoneinfo/Africa/Cairo Thu Apr 23 22:00:00 2009 UTC =3D Fri =
+ # Apr 24
+ # > 01:00:00 2009 EEST isdst=3D1 gmtoff=3D10800
+ # > /usr/share/zoneinfo/Africa/Cairo Thu Aug 27 20:59:59 2009 UTC =3D Thu =
+ # Aug 27
+ # > 23:59:59 2009 EEST isdst=3D1 gmtoff=3D10800
+ # > /usr/share/zoneinfo/Africa/Cairo Thu Aug 27 21:00:00 2009 UTC =3D Thu =
+ # Aug 27
+ # > 23:00:00 2009 EET isdst=3D0 gmtoff=3D7200
+ #
+ # > end date should be Thu Sep 24 2009 (Last Thursday in September at 23:59=
+ # :59)
+ # > http://support.microsoft.com/kb/958729/
+ #
+ # timeanddate[2] and another site I've found[3] also support that.
+ #
+ # [1] <a href="https://bugzilla.redhat.com/show_bug.cgi?id=3D492263">
+ # https://bugzilla.redhat.com/show_bug.cgi?id=3D492263
+ # </a>
+ # [2] <a href="http://www.timeanddate.com/worldclock/clockchange.html?n=3D53">
+ # http://www.timeanddate.com/worldclock/clockchange.html?n=3D53
+ # </a>
+ # [3] <a href="http://wwp.greenwichmeantime.com/time-zone/africa/egypt/">
+ # http://wwp.greenwichmeantime.com/time-zone/africa/egypt/
+ # </a>
+
+ # From Arthur David Olson (2009-04-20):
+ # In 2009 (and for the next several years), Ramadan ends before the fourth
+ # Thursday in September; Egypt is expected to revert to the last Thursday
+ # in September.
+ Rule Egypt 2008 only - Aug lastThu 23:00s 0 -
+ Rule Egypt 2009 max - Sep lastThu 23:00s 0 -
+
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Africa/Cairo 2:05:00 - LMT 1900 Oct
2:00 Egypt EE%sT
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