>From 267e6c35ecb8183e239fbe42fc6551f1159af1ee Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Sat, 10 Jun 2017 14:09:31 -0700 Subject: [PROPOSED] Fix 1867-10-18 transitions for Anchorage etc. * northamerica (America/Yakuta, America/Anchorage, America/Nome) (America/Adak): Fix transition times so that they are simultaneous with Sitka. Problem reported by Michael Deckers. --- northamerica | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) diff --git a/northamerica b/northamerica index 6ba49fc..9c70485 100644 --- a/northamerica +++ b/northamerica @@ -492,15 +492,15 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02 # Alaska # AK%sT is the modern abbreviation for -09 per USNO. # -# From Paul Eggert (2017-06-09): +# From Paul Eggert (2017-06-10): # Howse writes that Alaska switched from the Julian to the Gregorian calendar, # and from east-of-GMT to west-of-GMT days, when the US bought it from Russia. # This was on 1867-10-18, a Friday. Lovell Rousseau wrote that the ceremony # took place at 15:30 precisely, marked by a salute fired from the man-of-war # Ossipee; see 40th Congress, 2d session, Ex. Doc No. 125, p 4. # Presumably 1867-10-18 is the Gregorian date of the ceremony. -# Inhabitants of Sitka did not change their calendars until Sunday, -# 1867-10-20, which they celebrated twice; see Ahllund T (tr Hallamaa P). +# Sitka workers did not change their calendars until Sunday, 1867-10-20, +# presumably to get another day off that week. See: Ahllund T (tr Hallamaa P). # From the memoirs of a Finnish workman. Alaska History. 2006 Fall;21(2):1-25. # http://alaskahistoricalsociety.org/wp-content/uploads/2016/12/Ahllund-2006-Memoirs-of-a-Finnish-Workman.pdf # Include only the time zone part of this transition, ignoring the switch @@ -514,12 +514,9 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02 # time change. However, the Russian-influenced part of Alaska did observe # Russian time, and it is more accurate to model this than to ignore it. # The database format requires an exact transition time; use the Ossipee's -# salute as a somewhat-arbitrary point of transition for all of Alaska. -# Sitka's UTC offset is -9:01:13, so adjust its 15:30 to the local times of -# Alaskan locations, as follows: 12:44:25 for Adak (-11:46:38), 13:29:25 for -# Nome (-11:01:38), 14:31:23 for Anchorage (-9:59:36), 15:22:42 for Yakutat -# (-9:18:55), 15:33:32 for Juneau (-8:57:41), and 15:44:55 for Metlakatla -# (-8:46:18). +# salute as a somewhat-arbitrary time for the formal transfer of control for +# all of Alaska. Sitka's UTC offset is -9:01:13; adjust its 15:30 to the +# local times of other Alaskan locations so that they change simultaneously. # From Paul Eggert (2014-07-18): # One opinion of the early-1980s turmoil in Alaska over time zones and @@ -601,14 +598,14 @@ Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 19 15:44:55 -8:00 US P%sT 1983 Oct 30 2:00 -8:00 - PST 2015 Nov 1 2:00 -9:00 US AK%sT -Zone America/Yakutat 14:41:05 - LMT 1867 Oct 19 15:22:42 +Zone America/Yakutat 14:41:05 - LMT 1867 Oct 19 15:12:18 -9:18:55 - LMT 1900 Aug 20 12:00 -9:00 - YST 1942 -9:00 US Y%sT 1946 -9:00 - YST 1969 -9:00 US Y%sT 1983 Nov 30 -9:00 US AK%sT -Zone America/Anchorage 14:00:24 - LMT 1867 Oct 19 14:31:23 +Zone America/Anchorage 14:00:24 - LMT 1867 Oct 19 14:31:37 -9:59:36 - LMT 1900 Aug 20 12:00 -10:00 - AST 1942 -10:00 US A%sT 1967 Apr @@ -616,7 +613,7 @@ Zone America/Anchorage 14:00:24 - LMT 1867 Oct 19 14:31:23 -10:00 US AH%sT 1983 Oct 30 2:00 -9:00 US Y%sT 1983 Nov 30 -9:00 US AK%sT -Zone America/Nome 12:58:22 - LMT 1867 Oct 19 13:29:25 +Zone America/Nome 12:58:22 - LMT 1867 Oct 19 13:29:35 -11:01:38 - LMT 1900 Aug 20 12:00 -11:00 - NST 1942 -11:00 US N%sT 1946 @@ -625,7 +622,7 @@ Zone America/Nome 12:58:22 - LMT 1867 Oct 19 13:29:25 -11:00 US B%sT 1983 Oct 30 2:00 -9:00 US Y%sT 1983 Nov 30 -9:00 US AK%sT -Zone America/Adak 12:13:22 - LMT 1867 Oct 19 12:44:25 +Zone America/Adak 12:13:22 - LMT 1867 Oct 19 12:44:35 -11:46:38 - LMT 1900 Aug 20 12:00 -11:00 - NST 1942 -11:00 US N%sT 1946 -- 2.9.4