diff options
| -rw-r--r-- | NEWS | 18 | ||||
| -rw-r--r-- | backward | 1 | ||||
| -rw-r--r-- | backzone | 49 | ||||
| -rw-r--r-- | northamerica | 97 | ||||
| -rw-r--r-- | zone.tab | 3 | ||||
| -rw-r--r-- | zone1970.tab | 3 |
6 files changed, 119 insertions, 52 deletions
@@ -1,7 +1,25 @@ News for the tz database + Briefly: + Fix some pre-1996 timestamps in northern Canada + Unreleased, experimental changes + Changes to past timestamps + + Changes for pre-1996 northern Canada (thanks to Chris Walton): + + Merge America/Iqaluit and America/Pangnirtung into the former, + with a backward compatibility link for the latter name. + There is no good evidence the two locations differ since 1970. + This change affects pre-1996 America/Pangnirtung timestamps. + + Cambridge Bay, Inuvik, Iqaluit, Rankin Inlet, Resolute and + Yellowknife did not observe DST in 1965, and did observe DST + from 1972 through 1979. + + Whitehorse moved from -09 to -08 on 1966-02-27, not 1967-05-28. + Changes to code Fix bug in zdump's tzalloc emulation on hosts that lack tm_zone. @@ -267,6 +267,7 @@ Link America/Tijuana America/Ensenada Link America/Indiana/Indianapolis America/Fort_Wayne Link America/Toronto America/Montreal Link America/Toronto America/Nipigon +Link America/Iqaluit America/Pangnirtung Link America/Rio_Branco America/Porto_Acre Link America/Winnipeg America/Rainy_River Link America/Argentina/Cordoba America/Rosario @@ -750,6 +750,55 @@ Zone America/Nipigon -5:53:04 - LMT 1895 -5:00 1:00 EDT 1942 Feb 9 2:00s -5:00 Canada E%sT +# From Rives McDow (1999-11-08): +# On October 31, when the rest of Nunavut went to Central time, +# Pangnirtung wobbled. Here is the result of their wobble: +# +# The following businesses and organizations in Pangnirtung use Central Time: +# +# First Air, Power Corp, Nunavut Construction, Health Center, RCMP, +# Eastern Arctic National Parks, A & D Specialist +# +# The following businesses and organizations in Pangnirtung use Eastern Time: +# +# Hamlet office, All other businesses, Both schools, Airport operator +# +# This has made for an interesting situation there, which warranted the news. +# No one there that I spoke with seems concerned, or has plans to +# change the local methods of keeping time, as it evidently does not +# really interfere with any activities or make things difficult locally. +# They plan to celebrate New Year's turn-over twice, one hour apart, +# so it appears that the situation will last at least that long. +# The Nunavut Intergovernmental Affairs hopes that they will "come to +# their senses", but the locals evidently don't see any problem with +# the current state of affairs. + +# From Michaela Rodrigue, writing in the +# Nunatsiaq News (1999-11-19): +# http://www.nunatsiaqonline.ca/archives/nunavut991130/nvt91119_17.html +# Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones, +# central - or Nunavut time - for government offices, and eastern time +# for municipal offices and schools.... Igloolik [was similar but then] +# made the switch to central time on Saturday, Nov. 6. + +# From Chris Walton (2022-11-06): +# The implication is that Pangnirtung and Qikiqtarjuaq have observed Eastern +# Time as far back as 1984 (and likely even further back than that). +# It is possible that these communities never actually observed Atlantic +# Time, but that would be difficult to prove. +# From Paul Eggert (2022-11-06): +# This is in 'backzone' as we have no good evidence that Pangnirtung differs +# from America/Iqaluit since 1970. A Google Books snippet view of +# volume 2, page 186 of "Pilot of Arctic Canada", published 1959 by +# the Canadian Hydrographic Service, suggests (though does not state) +# that Pangnirtung observed EST then. +# +# aka Panniqtuuq +Zone America/Pangnirtung 0 - -00 1921 # trading post est. + -5:00 NT_YK E%sT 1999 Oct 31 2:00 + -6:00 Canada C%sT 2000 Oct 29 2:00 + -5:00 Canada E%sT + # United States # # From Paul Eggert (2018-03-18): diff --git a/northamerica b/northamerica index 9833669..71795bd 100644 --- a/northamerica +++ b/northamerica @@ -1969,6 +1969,37 @@ Zone America/Fort_Nelson -8:10:47 - LMT 1884 # Northwest Territories, Nunavut, Yukon +# From Chris Walton (2022-11-06): +# *Whitehorse Star *—* Thursday April 22, 1965 *—* page 1* +# title: *DST Starts Monday* ... +# https://www.newspapers.com/image/578587481/ +# The title of this first article is wrong and/or misleading. +# Also, the start time shown in the article is vague; it simply says "after +# midnight" when it probably should have stated 2:00a.m.... +# +# *Whitehorse Star *—* Monday October 25, 1965 *—* page 15* ... +# https://www.newspapers.com/image/578589147/ +# The 1965 Yukon Council minutes can be found here: +# http://assets.yukonarchives.ca/PER_YG_06_1965_C20_S02_v1.pdf +# ... I do not currently believe that NWT touched any of its clocks in 1965.... +# +# *Whitehorse Star *—* Thursday Feb 24,1966 *—* page 2* +# title: *It's Time for YDT* ... +# https://www.newspapers.com/image/578575979/ ... +# America/Whitehorse as a permanent change from UTC-9(YST) to +# UTC-8(PST) at 00:00 on Sunday February 27, 1966.... +# +# *Whitehorse Star *—* Friday April 28,1972 *—* page 6* +# title: *Daylight Saving Time for N.W.T.*... +# https://www.newspapers.com/image/578701610/ ... +# Nunavut and NWT zones ... DST starting in 1972.... Start and End ... +# should be the same as the rest of Canada +# +# +# From Paul Eggert (2022-11-06): +# For now, assume Yukon's 2022-04-22 spring forward 00:00 -> 02:00, as this +# seems likely than 02:00 -> 04:00 and matches "after midnight". + # From Paul Eggert (2006-03-22): # Dawson switched to PST in 1973. Inuvik switched to MST in 1979. # Mathew Englander (1996-10-07) gives the following refs: @@ -2083,6 +2114,13 @@ Zone America/Fort_Nelson -8:10:47 - LMT 1884 # * Interpretation Act, RSY 2002, c 125 # https://www.canlii.org/en/yk/laws/stat/rsy-2002-c-125/latest/rsy-2002-c-125.html +# From Chris Walton (2022-11-06): +# The 5th edition of the Atlas of Canada contains a time zone map that +# shows both legislated and observed time zone boundaries. +# All communities on Baffin Island are shown to be observing Eastern time. +# The date on the map is 1984. +# https://ftp.maps.canada.ca/pub/nrcan_rncan/raster/atlas_5_ed/eng/other/referencemaps/mcr4056.pdf + # From Rives McDow (1999-09-04): # Nunavut ... moved ... to incorporate the whole territory into one time zone. # Nunavut moves to single time zone Oct. 31 @@ -2095,40 +2133,7 @@ Zone America/Fort_Nelson -8:10:47 - LMT 1884 # From Paul Eggert (1999-09-20): # Basic Facts: The New Territory # http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html -# (1999) reports that Pangnirtung operates on eastern time, -# and that Coral Harbour does not observe DST. We don't know when -# Pangnirtung switched to eastern time; we'll guess 1995. - -# From Rives McDow (1999-11-08): -# On October 31, when the rest of Nunavut went to Central time, -# Pangnirtung wobbled. Here is the result of their wobble: -# -# The following businesses and organizations in Pangnirtung use Central Time: -# -# First Air, Power Corp, Nunavut Construction, Health Center, RCMP, -# Eastern Arctic National Parks, A & D Specialist -# -# The following businesses and organizations in Pangnirtung use Eastern Time: -# -# Hamlet office, All other businesses, Both schools, Airport operator -# -# This has made for an interesting situation there, which warranted the news. -# No one there that I spoke with seems concerned, or has plans to -# change the local methods of keeping time, as it evidently does not -# really interfere with any activities or make things difficult locally. -# They plan to celebrate New Year's turn-over twice, one hour apart, -# so it appears that the situation will last at least that long. -# The Nunavut Intergovernmental Affairs hopes that they will "come to -# their senses", but the locals evidently don't see any problem with -# the current state of affairs. - -# From Michaela Rodrigue, writing in the -# Nunatsiaq News (1999-11-19): -# http://www.nunatsiaqonline.ca/archives/nunavut991130/nvt91119_17.html -# Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones, -# central - or Nunavut time - for government offices, and eastern time -# for municipal offices and schools.... Igloolik [was similar but then] -# made the switch to central time on Saturday, Nov. 6. +# (1999) reports that ... Coral Harbour does not observe DST. # From Paul Eggert (2000-10-02): # Matthews and Vincent (1998) say the following, but we lack histories @@ -2287,18 +2292,12 @@ Rule NT_YK 1919 only - Nov 1 0:00 0 S Rule NT_YK 1942 only - Feb 9 2:00 1:00 W # War Rule NT_YK 1945 only - Aug 14 23:00u 1:00 P # Peace Rule NT_YK 1945 only - Sep 30 2:00 0 S -Rule NT_YK 1965 only - Apr lastSun 0:00 2:00 DD -Rule NT_YK 1965 only - Oct lastSun 2:00 0 S -Rule NT_YK 1980 1986 - Apr lastSun 2:00 1:00 D -Rule NT_YK 1980 2006 - Oct lastSun 2:00 0 S +Rule NT_YK 1972 1986 - Apr lastSun 2:00 1:00 D +Rule NT_YK 1972 2006 - Oct lastSun 2:00 0 S Rule NT_YK 1987 2006 - Apr Sun>=1 2:00 1:00 D +Rule Yukon 1965 only - Apr lastSun 0:00 2:00 DD +Rule Yukon 1965 only - Oct lastSun 2:00 0 S # Zone NAME STDOFF RULES FORMAT [UNTIL] -# aka Panniqtuuq -Zone America/Pangnirtung 0 - -00 1921 # trading post est. - -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00 - -5:00 Canada E%sT 1999 Oct 31 2:00 - -6:00 Canada C%sT 2000 Oct 29 2:00 - -5:00 Canada E%sT # formerly Frobisher Bay Zone America/Iqaluit 0 - -00 1942 Aug # Frobisher Bay est. -5:00 NT_YK E%sT 1999 Oct 31 2:00 @@ -2331,13 +2330,15 @@ Zone America/Inuvik 0 - -00 1953 # Inuvik founded -7:00 NT_YK M%sT 1980 -7:00 Canada M%sT Zone America/Whitehorse -9:00:12 - LMT 1900 Aug 20 - -9:00 NT_YK Y%sT 1967 May 28 0:00 - -8:00 NT_YK P%sT 1980 + -9:00 NT_YK Y%sT 1965 + -9:00 Yukon Y%sT 1966 Feb 27 0:00 + -8:00 - PST 1980 -8:00 Canada P%sT 2020 Nov 1 -7:00 - MST Zone America/Dawson -9:17:40 - LMT 1900 Aug 20 - -9:00 NT_YK Y%sT 1973 Oct 28 0:00 - -8:00 NT_YK P%sT 1980 + -9:00 NT_YK Y%sT 1965 + -9:00 Yukon Y%sT 1973 Oct 28 0:00 + -8:00 - PST 1980 -8:00 Canada P%sT 2020 Nov 1 -7:00 - MST @@ -114,8 +114,7 @@ CA +4606-06447 America/Moncton Atlantic - New Brunswick CA +5320-06025 America/Goose_Bay Atlantic - Labrador (most areas) CA +5125-05707 America/Blanc-Sablon AST - QC (Lower North Shore) CA +4339-07923 America/Toronto Eastern - ON, QC (most areas) -CA +6344-06828 America/Iqaluit Eastern - NU (most east areas) -CA +6608-06544 America/Pangnirtung Eastern - NU (Pangnirtung) +CA +6344-06828 America/Iqaluit Eastern - NU (most areas) CA +484531-0913718 America/Atikokan EST - ON (Atikokan); NU (Coral H) CA +4953-09709 America/Winnipeg Central - ON (west); Manitoba CA +744144-0944945 America/Resolute Central - NU (Resolute) diff --git a/zone1970.tab b/zone1970.tab index a8555bf..95a5231 100644 --- a/zone1970.tab +++ b/zone1970.tab @@ -102,8 +102,7 @@ CA +4612-05957 America/Glace_Bay Atlantic - NS (Cape Breton) CA +4606-06447 America/Moncton Atlantic - New Brunswick CA +5320-06025 America/Goose_Bay Atlantic - Labrador (most areas) CA,BS +4339-07923 America/Toronto Eastern - ON, QC (most areas), Bahamas -CA +6344-06828 America/Iqaluit Eastern - NU (most east areas) -CA +6608-06544 America/Pangnirtung Eastern - NU (Pangnirtung) +CA +6344-06828 America/Iqaluit Eastern - NU (most areas) CA +4953-09709 America/Winnipeg Central - ON (west); Manitoba CA +744144-0944945 America/Resolute Central - NU (Resolute) CA +624900-0920459 America/Rankin_Inlet Central - NU (central) |