From 2047e9032f0802383f6beb76a045c2a9c27fcb1f Mon Sep 17 00:00:00 2001 From: Sascha Wildner Date: Mon, 27 Apr 2009 20:19:43 +0200 Subject: [PATCH] Sync zoneinfo database with tzdata2009g from elsie. africa: 8.18 -> 8.19 Due to Ramadan shifting through the Gregorian calendar it will end before the fourth Thursday in September in 2009 and the next couple of years, so Egypt is expected to end DST on the last Thursday in September. --- share/zoneinfo/africa | 43 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 41 insertions(+), 2 deletions(-) diff --git a/share/zoneinfo/africa b/share/zoneinfo/africa index 0a6185d6ef..80932d4686 100644 --- a/share/zoneinfo/africa +++ b/share/zoneinfo/africa @@ -1,4 +1,4 @@ -# @(#)africa 8.18 +# @(#)africa 8.19 #
 
 # This data is by no means authoritative; if you think you know better,
@@ -236,7 +236,46 @@ Rule	Egypt	2007	only	-	Sep	Thu>=1	23:00s	0	-
 # 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	-
+
+# 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] 
+# https://bugzilla.redhat.com/show_bug.cgi?id=3D492263
+# 
+# [2] 
+# http://www.timeanddate.com/worldclock/clockchange.html?n=3D53
+# 
+# [3] 
+# http://wwp.greenwichmeantime.com/time-zone/africa/egypt/
+# 
+
+# 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
-- 
2.41.0