[tz] [PATCH] Fix Asia/Shanghai 1940/9 DST transitions
Paul Eggert
eggert at cs.ucla.edu
Wed Oct 3 00:56:14 UTC 2018
On 10/2/18 1:39 PM, Phake Nick wrote:
> (May 28 per wiki).
I got May 27 from a western source, but it could well have already been
May 28 in Shanghai, so I changed it in the attached proposed patch.
> Guo Qing-sheng wrote an essay in 2003
Yes, we're already citing that essay in the 'asia' file. The attached
patch improves the citation by adding a URL. The 'asia' file doesn't
worry about Guo's essay much because it's not clear the Xujiahui
Observatorywas using Beijing solar time (or whatever it was they were
doing in Beijing; Guo isn't entirely sure).
-------------- next part --------------
From 64926e9e44d27f85796a0fbdd183911eaf35b4a1 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert at cs.ucla.edu>
Date: Tue, 2 Oct 2018 17:21:28 -0700
Subject: [PROPOSED] Add 1 to 1949 Shanghai transition date
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Suggested by Phake Nick in:
https://mm.icann.org/pipermail/tz/2018-October/026904.html
* asia (Asia/Shanghai): Change Shang→PRC date to 1949-05-28.
---
asia | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/asia b/asia
index a7b5c75..48b4c65 100644
--- a/asia
+++ b/asia
@@ -293,7 +293,7 @@ Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
# Also, the table lists the planned end of DST in 1949, but the corresponding
-# zone line cuts this off on May 27, when the Communists took power.
+# zone line cuts this off on May 28, when the Communists took power.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 1 0:00 1:00 D
@@ -307,7 +307,7 @@ Rule Shang 1946 only - Sep 30 24:00 0 S
Rule Shang 1947 only - Apr 15 0:00 1:00 D
Rule Shang 1947 only - Oct 31 24:00 0 S
Rule Shang 1948 1949 - May 1 0:00 1:00 D
-Rule Shang 1948 1949 - Sep 30 24:00 0 S
+Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan
# From Guy Harris:
# People's Republic of China. Yes, they really have only one time zone.
@@ -383,10 +383,11 @@ Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
# Alois Treindl kindly sent me translations of the following two sources:
#
# (1)
-# Guo Qingsheng (National Time-Service Center, CAS, Xi'an 710600, China)
+# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China)
# Beijing Time at the Beginning of the PRC
# China Historical Materials of Science and Technology
-# (Zhongguo ke ji shi liao, 中国科技史料), Vol. 24, No. 1 (2003)
+# (Zhongguo ke ji shi liao, 中国科技史料). 2003;24(1):5-9.
+# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003
# It gives evidence that at the beginning of the PRC, Beijing time was
# officially apparent solar time! However, Guo also says that the
# evidence is dubious, as the relevant institute of astronomy had not
@@ -563,7 +564,7 @@ Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Beijing time, used throughout China; represented by Shanghai.
Zone Asia/Shanghai 8:05:43 - LMT 1901
- 8:00 Shang C%sT 1949 May 27
+ 8:00 Shang C%sT 1949 May 28
8:00 PRC C%sT
# Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi
# / Wulumuqi. (Please use Asia/Shanghai if you prefer Beijing time.)
--
2.17.1
More information about the tz
mailing list