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-rw-r--r--time/asia73
1 files changed, 66 insertions, 7 deletions
diff --git a/time/asia b/time/asia
index 7afe922bf4..07cdb113c4 100644
--- a/time/asia
+++ b/time/asia
@@ -1,4 +1,4 @@
-# @(#)asia 7.26
+# @(#)asia 7.27
# This data is by no means authoritative; if you think you know better,
# go ahead and edit the file (and please send any changes to
@@ -354,6 +354,26 @@ Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
9:00 - JAYT
# Iran
+# From Paul Eggert (1996-12-17), following up a suggestion by Rich Wales:
+# Ahmad Alavi <URL:http://tehran.stanford.edu/Iran_Lib/Calendar/taghveem.txt>
+# (1993-08-04) writes ``Daylight saving time in Iran starts from the first day
+# of Farvardin and ends the first day of Mehr.'' This disagrees with the SSIM:
+#
+# DST start DST end
+# year SSIM Alavi SSIM Alavi
+# 1991 05-03!= 03-21 09-20!= 09-23
+# 1992 03-22!= 03-21 09-23 09-23
+# 1993 03-21 03-21 09-23 09-23
+# 1994 03-21 03-21 09-22!= 09-23
+# 1995 03-21 03-21 09-22!= 09-23
+# 1996 03-21!= 03-20 09-21!= 09-22
+# 1997 03-21 03-21 09-21!= 09-23
+#
+# Go with Alavi starting with 1992.
+# I used Ed Reingold's cal-persia in GNU Emacs 19.34 to compute Persian dates.
+# The Persian calendar is based on the sun, and dates after around 2050
+# are approximate; stop after 2037 when 32-bit time_t's overflow.
+#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Iran 1978 1980 - Mar 21 0:00 1:00 S
Rule Iran 1978 only - Oct 21 0:00 0 -
@@ -361,11 +381,50 @@ Rule Iran 1979 only - Sep 19 0:00 0 -
Rule Iran 1980 only - Sep 23 0:00 0 -
Rule Iran 1991 only - May 3 0:00s 1:00 S
Rule Iran 1991 only - Sep 20 0:00s 0 -
-Rule Iran 1992 only - Mar 22 0:00 1:00 S
-Rule Iran 1992 1993 - Sep 23 0:00 0 -
-Rule Iran 1993 max - Mar 21 0:00 1:00 S
-Rule Iran 1994 1995 - Sep 22 0:00 0 -
-Rule Iran 1996 max - Sep 21 0:00 0 -
+Rule Iran 1992 1995 - Mar 21 0:00 1:00 S
+Rule Iran 1992 1995 - Sep 23 0:00 0 -
+Rule Iran 1996 only - Mar 20 0:00 1:00 S
+Rule Iran 1996 only - Sep 22 0:00 0 -
+Rule Iran 1997 1999 - Mar 21 0:00 1:00 S
+Rule Iran 1997 1999 - Sep 23 0:00 0 -
+Rule Iran 2000 only - Mar 20 0:00 1:00 S
+Rule Iran 2000 only - Sep 22 0:00 0 -
+Rule Iran 2001 2003 - Mar 21 0:00 1:00 S
+Rule Iran 2001 2003 - Sep 23 0:00 0 -
+Rule Iran 2004 only - Mar 20 0:00 1:00 S
+Rule Iran 2004 only - Sep 22 0:00 0 -
+Rule Iran 2005 2007 - Mar 21 0:00 1:00 S
+Rule Iran 2005 2007 - Sep 23 0:00 0 -
+Rule Iran 2008 only - Mar 20 0:00 1:00 S
+Rule Iran 2008 only - Sep 22 0:00 0 -
+Rule Iran 2009 2011 - Mar 21 0:00 1:00 S
+Rule Iran 2009 2011 - Sep 23 0:00 0 -
+Rule Iran 2012 only - Mar 20 0:00 1:00 S
+Rule Iran 2012 only - Sep 22 0:00 0 -
+Rule Iran 2013 2015 - Mar 21 0:00 1:00 S
+Rule Iran 2013 2015 - Sep 23 0:00 0 -
+Rule Iran 2016 only - Mar 20 0:00 1:00 S
+Rule Iran 2016 only - Sep 22 0:00 0 -
+Rule Iran 2017 2019 - Mar 21 0:00 1:00 S
+Rule Iran 2017 2019 - Sep 23 0:00 0 -
+Rule Iran 2020 only - Mar 20 0:00 1:00 S
+Rule Iran 2020 only - Sep 22 0:00 0 -
+Rule Iran 2021 2023 - Mar 21 0:00 1:00 S
+Rule Iran 2021 2023 - Sep 23 0:00 0 -
+Rule Iran 2024 2025 - Mar 20 0:00 1:00 S
+Rule Iran 2024 2025 - Sep 22 0:00 0 -
+Rule Iran 2026 2027 - Mar 21 0:00 1:00 S
+Rule Iran 2026 2027 - Sep 23 0:00 0 -
+Rule Iran 2028 2029 - Mar 20 0:00 1:00 S
+Rule Iran 2028 2029 - Sep 22 0:00 0 -
+Rule Iran 2030 2031 - Mar 21 0:00 1:00 S
+Rule Iran 2030 2031 - Sep 23 0:00 0 -
+Rule Iran 2032 2033 - Mar 20 0:00 1:00 S
+Rule Iran 2032 2033 - Sep 22 0:00 0 -
+Rule Iran 2034 2035 - Mar 21 0:00 1:00 S
+Rule Iran 2034 2035 - Sep 23 0:00 0 -
+Rule Iran 2036 2037 - Mar 20 0:00 1:00 S
+Rule Iran 2036 2037 - Sep 22 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tehran 3:25:44 - LMT 1916
3:25:44 - TMT 1946 # Tehran Mean Time
@@ -492,7 +551,7 @@ Rule Zion 1995 only - Sep 3 0:00 0 S
#
# ftp://ftp.huji.ac.il/pub/misc/timezones/announcements/1996-1998.ps.gz
#
-# Emptor Caveat: The dates for the years 1996-1998 were originally announced
+# Caveat emptor: The dates for the years 1996-1998 were originally announced
# on 1995-08-31, by the previous Minister of Interior. The new Minister
# of Interior changed the dates on 1996-01-01, to take into account the
# desires of certain portions of Israeli society (the next election is in the