From c3ffed42522bb59110dce0fe4e39ebc095a5006c Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Tue, 6 Dec 2016 13:54:01 -0800
Subject: [PROPOSED] Asia/Atyrau and Asia/Oral were at +03 before 1930

(Thanks to Stepan Golosunov.)
* NEWS: Document this.
* asia (Asia/Atyrau, Asia/Oral): Change from +04 to +03
from 1924-05-02 to 1930-06-01.
---
 NEWS |  5 +++++
 asia | 24 ++++++++++++++++++++----
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/NEWS b/NEWS
index 31d96e8..39f01be 100644
--- a/NEWS
+++ b/NEWS
@@ -11,6 +11,11 @@ Unreleased, experimental changes
     23:00, hiving off a new zone America/Punta_Arenas.  (Thanks to
     Juan Correa.)  This also affects Antarctica/Palmer.
 
+  Changes to past time stamps
+
+    Asia/Atyrau and Asia/Oral were at +03 (not +04) before 1930-06-21.
+    (Thanks to Stepan Golosunov.)
+
   Changes to past and future time zone abbreviations
 
     Switch to numeric time zone abbreviations for South America, as
diff --git a/asia b/asia
index c6f63b5..8336c3e 100644
--- a/asia
+++ b/asia
@@ -1741,7 +1741,23 @@ Zone	Asia/Amman	2:23:44 -	LMT	1931
 # Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27
 # act was to be enacted on the last Sunday of March 1992.
 
-# From Paul Eggert (2016-11-07):
+# From Stepan Golosunov (2016-11-08):
+# Turgai reorganization should affect only southern part of Qostanay
+# oblast.  Which should probably be separated into Asia/Arkalyk zone.
+# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations
+# according to wikipedia.)
+#
+# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/
+# suggests that clocks were to be moved 40 minutes backwards on
+# 1920-01-01 to the fourth time belt.  But I do not understand
+# how that could happen....
+#
+# [For Atyrau and Oral] 1919 decree
+# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html
+# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in
+# the third time belt (before 1930 this means +03).
+
+# From Paul Eggert (2016-12-06):
 # The tables below reflect Golosunov's remarks, with exceptions as noted.
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -1771,7 +1787,7 @@ Zone	Asia/Qyzylorda	4:21:52 -	LMT	1924 May  2
 			6:00	-	+06
 # The following zone is like Asia/Qyzylorda except for being one
 # hour earlier from 1991-09-29 to 1992-03-29.  The 1991/2 rules for
-# Qostenay are unclear partly because of the 1997 Turgai
+# Qostanay are unclear partly because of the 1997 Turgai
 # reorganization, so this zone is commented out for now.
 #Zone	Asia/Qostanay	4:14:20 -	LMT	1924 May  2
 #			4:00	-	+04	1930 Jun 21
@@ -1808,7 +1824,7 @@ Zone	Asia/Aqtau	3:21:04	-	LMT	1924 May  2
 # Atyraū (KZ-ATY) is like Mangghystaū except it switched from
 # +04/+05 to +05/+06 in spring 1999, not fall 1994.
 Zone	Asia/Atyrau	3:27:44	-	LMT	1924 May  2
-			4:00	-	+04	1930 Jun 21
+			3:00	-	+03	1930 Jun 21
 			5:00	-	+05	1981 Oct  1
 			6:00	-	+06	1982 Apr  1
 			5:00 RussiaAsia	+05/+06	1991 Mar 31  2:00s
@@ -1820,7 +1836,7 @@ Zone	Asia/Atyrau	3:27:44	-	LMT	1924 May  2
 # From Paul Eggert (2016-03-18):
 # The 1989 transition is from USSR act No. 227 (1989-03-14).
 Zone	Asia/Oral	3:25:24	-	LMT	1924 May  2 # or Ural'sk
-			4:00	-	+04	1930 Jun 21
+			3:00	-	+03	1930 Jun 21
 			5:00	-	+05	1981 Apr  1
 			5:00	1:00	+06	1981 Oct  1
 			6:00	-	+06	1982 Apr  1
-- 
2.7.4

