Iran will stop DST in 2023
Signed-off-by: Chao Liu <liuchao173@huawei.com>
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Chao Liu
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backport-Iran-will-stop-DST-in-2023.patch
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179
backport-Iran-will-stop-DST-in-2023.patch
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From 66b18d9835dda089d65349c86e7851c4f0746e09 Mon Sep 17 00:00:00 2001
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From: Paul Eggert <eggert@cs.ucla.edu>
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Date: Tue, 10 May 2022 15:39:01 -0700
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Subject: [PATCH] Iran will stop DST in 2023
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(Thanks to Ali Mirjamali.)
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* NEWS: Mention this.
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* asia (Iran): Remove post-2022 transitions.
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---
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asia | 139 ++++-------------------------------------------------------
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1 file changed, 8 insertions(+), 131 deletions(-)
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diff --git a/asia b/asia
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index ca69d36..dd2632a 100644
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--- a/asia
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+++ b/asia
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@@ -1438,63 +1438,6 @@ Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
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#
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# From Paul Eggert (2018-11-30):
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# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter.
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-# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
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-# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's
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-# cal-persia implementation of Birashk's approximation, which in the
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-# 2008-2087 range disagrees with the astronomical Persian calendar
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-# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058), so
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-# the following code special-cases those years. See Table 15.1, page 264, of:
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-# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
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-# The Ultimate Edition, Cambridge University Press (2018).
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-# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
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-# Page 258, footnote 2, of this book says there is some dispute over what will
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-# happen in 2091 (and some other years after that), so this code
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-# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
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-# (cl-loop
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-# initially (require 'cal-persia)
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-# with first-persian-year = 1387
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-# with last-persian-year = 1466
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-# ;; Exceptional years in the above range,
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-# ;; from Reingold & Dershowitz Table 15.1, page 264:
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-# with exceptional-persian-years = '(1404 1437)
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-# with range-start = nil
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-# for persian-year from first-persian-year to last-persian-year
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-# do
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-# (let*
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-# ((exceptional-year-offset
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-# (if (member persian-year exceptional-persian-years) 1 0))
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-# (beg-dst-absolute
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-# (+ (calendar-persian-to-absolute (list 1 1 persian-year))
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-# exceptional-year-offset))
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-# (end-dst-absolute
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-# (+ (calendar-persian-to-absolute (list 6 30 persian-year))
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-# exceptional-year-offset))
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-# (next-year-beg-dst-absolute
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-# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
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-# (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
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-# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
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-# (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
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-# (next-year-beg-dst (calendar-gregorian-from-absolute
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-# next-year-beg-dst-absolute))
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-# (year (calendar-extract-year beg-dst))
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-# (range-end (if range-start year "only")))
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-# (setq range-start (or range-start year))
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-# (when (or (/= (calendar-extract-day beg-dst)
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-# (calendar-extract-day next-year-beg-dst))
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-# (= persian-year last-persian-year))
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-# (insert
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-# (format
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-# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
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-# range-start range-end
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-# (calendar-month-name (calendar-extract-month beg-dst) t)
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-# (calendar-extract-day beg-dst)))
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-# (insert
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-# (format
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-# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
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-# range-start range-end
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-# (calendar-month-name (calendar-extract-month end-dst) t)
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-# (calendar-extract-day end-dst)))
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-# (setq range-start nil))))
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#
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# From Oscar van Vlijmen (2005-03-30), writing about future
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# discrepancies between cal-persia and the Iranian calendar:
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@@ -1528,6 +1471,12 @@ Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
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# be changed back to its previous state on the 24 hours of the
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# thirtieth day of Shahrivar.
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#
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+# From Ali Mirjamali (2022-05-10):
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+# Official IR News Agency announcement: irna.ir/xjJ3TT
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+# Iran Parliament (Majles) official announcement : shorturl.at/fhtIR
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+# Highlights: DST will be cancelled for the next Iranian year 1402
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+# (i.e 2023-March-21) and forthcoming years.
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+#
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# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
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Rule Iran 1978 1980 - Mar 20 24:00 1:00 -
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Rule Iran 1978 only - Oct 20 24:00 0 -
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@@ -1562,80 +1511,8 @@ Rule Iran 2017 2019 - Mar 21 24:00 1:00 -
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Rule Iran 2017 2019 - Sep 21 24:00 0 -
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Rule Iran 2020 only - Mar 20 24:00 1:00 -
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Rule Iran 2020 only - Sep 20 24:00 0 -
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-Rule Iran 2021 2023 - Mar 21 24:00 1:00 -
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-Rule Iran 2021 2023 - Sep 21 24:00 0 -
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-Rule Iran 2024 only - Mar 20 24:00 1:00 -
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-Rule Iran 2024 only - Sep 20 24:00 0 -
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-Rule Iran 2025 2027 - Mar 21 24:00 1:00 -
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-Rule Iran 2025 2027 - Sep 21 24:00 0 -
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-Rule Iran 2028 2029 - Mar 20 24:00 1:00 -
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-Rule Iran 2028 2029 - Sep 20 24:00 0 -
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-Rule Iran 2030 2031 - Mar 21 24:00 1:00 -
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-Rule Iran 2030 2031 - Sep 21 24:00 0 -
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-Rule Iran 2032 2033 - Mar 20 24:00 1:00 -
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-Rule Iran 2032 2033 - Sep 20 24:00 0 -
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-Rule Iran 2034 2035 - Mar 21 24:00 1:00 -
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-Rule Iran 2034 2035 - Sep 21 24:00 0 -
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-Rule Iran 2036 2037 - Mar 20 24:00 1:00 -
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-Rule Iran 2036 2037 - Sep 20 24:00 0 -
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-Rule Iran 2038 2039 - Mar 21 24:00 1:00 -
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-Rule Iran 2038 2039 - Sep 21 24:00 0 -
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-Rule Iran 2040 2041 - Mar 20 24:00 1:00 -
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-Rule Iran 2040 2041 - Sep 20 24:00 0 -
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-Rule Iran 2042 2043 - Mar 21 24:00 1:00 -
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-Rule Iran 2042 2043 - Sep 21 24:00 0 -
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-Rule Iran 2044 2045 - Mar 20 24:00 1:00 -
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-Rule Iran 2044 2045 - Sep 20 24:00 0 -
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-Rule Iran 2046 2047 - Mar 21 24:00 1:00 -
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-Rule Iran 2046 2047 - Sep 21 24:00 0 -
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-Rule Iran 2048 2049 - Mar 20 24:00 1:00 -
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-Rule Iran 2048 2049 - Sep 20 24:00 0 -
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-Rule Iran 2050 2051 - Mar 21 24:00 1:00 -
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-Rule Iran 2050 2051 - Sep 21 24:00 0 -
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-Rule Iran 2052 2053 - Mar 20 24:00 1:00 -
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-Rule Iran 2052 2053 - Sep 20 24:00 0 -
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-Rule Iran 2054 2055 - Mar 21 24:00 1:00 -
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-Rule Iran 2054 2055 - Sep 21 24:00 0 -
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-Rule Iran 2056 2057 - Mar 20 24:00 1:00 -
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-Rule Iran 2056 2057 - Sep 20 24:00 0 -
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-Rule Iran 2058 2059 - Mar 21 24:00 1:00 -
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-Rule Iran 2058 2059 - Sep 21 24:00 0 -
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-Rule Iran 2060 2062 - Mar 20 24:00 1:00 -
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-Rule Iran 2060 2062 - Sep 20 24:00 0 -
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-Rule Iran 2063 only - Mar 21 24:00 1:00 -
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-Rule Iran 2063 only - Sep 21 24:00 0 -
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-Rule Iran 2064 2066 - Mar 20 24:00 1:00 -
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-Rule Iran 2064 2066 - Sep 20 24:00 0 -
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-Rule Iran 2067 only - Mar 21 24:00 1:00 -
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-Rule Iran 2067 only - Sep 21 24:00 0 -
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-Rule Iran 2068 2070 - Mar 20 24:00 1:00 -
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-Rule Iran 2068 2070 - Sep 20 24:00 0 -
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-Rule Iran 2071 only - Mar 21 24:00 1:00 -
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-Rule Iran 2071 only - Sep 21 24:00 0 -
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-Rule Iran 2072 2074 - Mar 20 24:00 1:00 -
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-Rule Iran 2072 2074 - Sep 20 24:00 0 -
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-Rule Iran 2075 only - Mar 21 24:00 1:00 -
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-Rule Iran 2075 only - Sep 21 24:00 0 -
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-Rule Iran 2076 2078 - Mar 20 24:00 1:00 -
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-Rule Iran 2076 2078 - Sep 20 24:00 0 -
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-Rule Iran 2079 only - Mar 21 24:00 1:00 -
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-Rule Iran 2079 only - Sep 21 24:00 0 -
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-Rule Iran 2080 2082 - Mar 20 24:00 1:00 -
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-Rule Iran 2080 2082 - Sep 20 24:00 0 -
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-Rule Iran 2083 only - Mar 21 24:00 1:00 -
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-Rule Iran 2083 only - Sep 21 24:00 0 -
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-Rule Iran 2084 2086 - Mar 20 24:00 1:00 -
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-Rule Iran 2084 2086 - Sep 20 24:00 0 -
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-Rule Iran 2087 only - Mar 21 24:00 1:00 -
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-Rule Iran 2087 only - Sep 21 24:00 0 -
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-#
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-# The following rules are approximations starting in the year 2088.
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-# These are the best post-2088 approximations available, given the
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-# restrictions of a single rule using ordinary Gregorian dates.
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-# At some point this table will need to be extended, though quite
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-# possibly Iran will change the rules first.
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-Rule Iran 2088 max - Mar 20 24:00 1:00 -
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-Rule Iran 2088 max - Sep 20 24:00 0 -
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+Rule Iran 2021 2022 - Mar 21 24:00 1:00 -
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+Rule Iran 2021 2022 - Sep 21 24:00 0 -
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# Zone NAME STDOFF RULES FORMAT [UNTIL]
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Zone Asia/Tehran 3:25:44 - LMT 1916
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--
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2.23.0
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10
tzdata.spec
10
tzdata.spec
@ -1,6 +1,6 @@
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Name: tzdata
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Version: 2022a
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Release: 1
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Release: 2
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Summary: Timezone data
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License: Public Domain
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URL: https://www.iana.org/time-zones
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@ -9,6 +9,8 @@ Source1: https://data.iana.org/time-zones/releases/tzcode%{version}.tar.gz
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Source2: javazic.tar.gz
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Source3: javazic-1.8-37392f2f5d59.tar.xz
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Patch6000: backport-Iran-will-stop-DST-in-2023.patch
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Patch9000: bugfix-0001-add-Beijing-timezone.patch
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Patch9001: remove-country-selection-from-tzselect-steps.patch
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Patch9002: remove-ROC-timezone.patch
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@ -107,6 +109,12 @@ install -p -m 644 tzdb.dat $RPM_BUILD_ROOT%{_datadir}/javazi-1.8/
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%{_datadir}/javazi-1.8
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%changelog
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* Thu May 12 2022 liuchao<liuchao173@huawei.com> - 2022a-2
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- Type:bugfix
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- CVE:NA
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- SUG:NA
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- DESC:Iran will stop DST in 2023
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* Mon Apr 18 2022 liuchao<liuchao173@huawei.com> - 2022a-1
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- Type:bugfix
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- CVE:NA
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