tzdata/backport-Fixes-for-Casey-and-Macquarie.patch
2020-10-10 19:03:29 +08:00

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3.5 KiB
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From 6427fe6c0cca1dc0f8580f8b96348911ad051570 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Thu, 1 Oct 2020 23:59:18 -0700
Subject: [PATCH 38/47] Fixes for Casey and Macquarie
* NEWS: Mention this. (Thanks to Steffen Thorsen.)
* antarctica (Antarctica/Casey): +08 in winter, +11 in summer
since 2018, too.
* australasia (Antarctica/Macquarie): Stay in sync with
Hobart starting in 2011.
---
NEWS | 9 +++++++++
antarctica | 25 ++++++++++++++++++++-----
australasia | 5 +++--
3 files changed, 32 insertions(+), 7 deletions(-)
diff --git a/NEWS b/NEWS
index df81d55..f0858f8 100644
--- a/NEWS
+++ b/NEWS
@@ -5,6 +5,8 @@ Unreleased, experimental changes
Briefly:
Revised predictions for Morocco's changes starting in 2023.
Canada's Yukon changes to -07 on 2020-11-01, not 2020-03-08.
+ Macquarie Island has stayed in sync with Tasmania since 2011.
+ Casey, Antarctica is at +08 in summer and +11 in winter.
Changes to future timestamps
@@ -13,6 +15,13 @@ Unreleased, experimental changes
(Thanks to Milamber.) The first altered prediction is for 2023,
now predicted to spring-forward on April 30 instead of April 23.
+ Changes to past and future timestamps
+
+ Casey Station, Antarctica has been using +08 in summer and +11 in
+ winter since 2018. The next transition is from +08 to +11 on
+ 2020-10-04 00:01. Also, Macquarie Island has been staying in
+ sync with Tasmania since 2011. (Thanks to Steffen Thorsen.)
+
Changes to past and future time zone abbreviations and DST flags
Canada's Yukon, represented by America/Whitehorse and
diff --git a/antarctica b/antarctica
index 2059983..94aeb17 100644
--- a/antarctica
+++ b/antarctica
@@ -70,15 +70,30 @@
# Australian Antarctica Division informed us that Casey changed time
# zone to UTC+11 in "the morning of 22nd October 2016".
+# From Steffen Thorsen (2020-10-02):
+# Based on information we have received from the Australian Antarctic
+# Division, Casey station and Macquarie Island station will move to Tasmanian
+# daylight savings time on Sunday 4 October. This will take effect from 0001
+# hrs on Sunday 4 October 2020 and will mean Casey and Macquarie Island will
+# be on the same time zone as Hobart. Some past dates too for this 3 hour
+# time change back and forth between UTC+8 and UTC+11 for Casey:
+# - 2018 Oct 7 4:00 - 2019 Mar 17 3:00 - 2019 Oct 6 3:00 - 2020 Mar 8 3:00
+# and now - 2020 Oct 4 0:01
+
# Zone NAME STDOFF RULES FORMAT [UNTIL]
-Zone Antarctica/Casey 0 - -00 1969
- 8:00 - +08 2009 Oct 18 2:00
+Zone Antarctica/Casey 0 - -00 1969
+ 8:00 - +08 2009 Oct 18 2:00
11:00 - +11 2010 Mar 5 2:00
- 8:00 - +08 2011 Oct 28 2:00
+ 8:00 - +08 2011 Oct 28 2:00
11:00 - +11 2012 Feb 21 17:00u
- 8:00 - +08 2016 Oct 22
+ 8:00 - +08 2016 Oct 22
11:00 - +11 2018 Mar 11 4:00
- 8:00 - +08
+ 8:00 - +08 2018 Oct 7 4:00
+ 11:00 - +11 2019 Mar 17 3:00
+ 8:00 - +08 2019 Oct 6 3:00
+ 11:00 - +11 2020 Mar 8 3:00
+ 8:00 - +08 2020 Oct 4 0:01
+ 11:00 - +11
Zone Antarctica/Davis 0 - -00 1957 Jan 13
7:00 - +07 1964 Nov
0 - -00 1969 Feb
diff --git a/australasia b/australasia
index ac44c04..31b3b36 100644
--- a/australasia
+++ b/australasia
@@ -252,8 +252,9 @@ Zone Antarctica/Macquarie 0 - -00 1899 Nov
10:00 Aus AE%sT 1919 Apr 1 0:00s
0 - -00 1948 Mar 25
10:00 Aus AE%sT 1967
- 10:00 AT AE%sT 2010 Apr 4 3:00
- 11:00 - +11
+ 10:00 AT AE%sT 2010
+ 10:00 1:00 AEDT 2011
+ 10:00 AT AE%sT
# Christmas
# Zone NAME STDOFF RULES FORMAT [UNTIL]
--
1.8.3.1