>From a0ec6827073b6ac251d867c68228407d313237ed Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Fri, 17 Apr 2015 12:58:00 -0700 Subject: [PATCH] Better documentation for time in Yukon * NEWS, northamerica: Document the time changes in Yukon better. (Thanks to Brian Inglis.) --- NEWS | 4 ++ northamerica | 117 +++++++++++++++++++++++++++++++++++++++++++++++++++-------- 2 files changed, 106 insertions(+), 15 deletions(-) diff --git a/NEWS b/NEWS index 3ca3a30..445bce2 100644 --- a/NEWS +++ b/NEWS @@ -9,6 +9,10 @@ Unreleased, experimental changes Printing Office style. This affects only America/Adak since 1983, as America/Honolulu was already using the new style. + Changes affecting commentary + + Yukon's time zone history is documented better. (Thanks to Brian Inglis.) + Release 2015c - 2015-04-11 08:55:55 -0700 diff --git a/northamerica b/northamerica index 18f0140..dde9367 100644 --- a/northamerica +++ b/northamerica @@ -1842,21 +1842,108 @@ Zone America/Creston -7:46:04 - LMT 1884 # Northwest Territories, Nunavut, Yukon -# 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: -# * 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68, -# c. 7 defines Yukon standard time as UTC-9. This is still valid; -# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1). -# * C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00. -# * O.I.C. 1980/02 established DST. -# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00. -# Shanks & Pottenger say Yukon's 1973-10-28 switch was at 2:00; go -# with Englander. -# From Chris Walton (2006-06-26): -# Here is a link to the old daylight saving portion of the interpretation -# act which was last updated in 1987: -# http://www.gov.yk.ca/legislation/regs/oic1987_056.pdf +# From Brian Inglis (2015-04-14): +# +# I tried to trace the history of Yukon time and found the following +# regulations, giving the reference title and URL if found, regulation name, +# and relevant quote if available. Each regulation specifically revokes its +# predecessor. The final reference is to the current Interpretation Act +# authorizing and resulting from these regulatory changes. +# +# Only recent regulations were retrievable via Yukon government site search or +# index, and only some via Canadian legal sources. Other sources used include +# articles titled "Standard Time and Time Zones in Canada" from JRASC via ADS +# Abstracts, cited by ADO for 1932 ..., and updated versions from 1958 and +# 1970 quoted below; each article includes current extracts from provincial +# and territorial ST and DST regulations at the end, summaries and details of +# standard times and daylight saving time at many locations across Canada, +# with time zone maps, tables and calculations for Canadian Sunrise, Sunset, +# and LMST; they also cover many countries and global locations, with a chart +# and table showing current Universal Time offsets, and may be useful as +# another source of information for 1970 and earlier. +# +# * Standard Time and Time Zones in Canada; Smith, C.C.; JRASC, Vol. 26, +# pp.49-77; February 1932; SAO/NASA Astrophysics Data System (ADS) +# http://adsabs.harvard.edu/abs/1932JRASC..26...49S from p.75: +# Yukon Interpretation Ordinance +# Yukon standard time is the local mean time at the one hundred and +# thirty-fifth meridian. +# +# * Standard Time and Time Zones in Canada; Smith, C.C.; Thomson, Malcolm M.; +# JRASC, Vol. 52, pp.193-223; October 1958; SAO/NASA Astrophysics Data System +# (ADS) http://adsabs.harvard.edu/abs/1958JRASC..52..193S from pp.220-1: +# Yukon Interpretation Ordinance, 1955, Chap. 16. +# +# (1) Subject to this section, standard time shall be reckoned as nine +# hours behind Greenwich Time and called Yukon Standard Time. +# +# (2) Notwithstanding subsection (1), the Commissioner may make regulations +# varying the manner of reckoning standard time. +# +# * Yukon Territory Commissioner's Order 1966-20 Interpretation Ordinance +# http://? - no online source found +# +# * Standard Time and Time Zones in Canada; Thomson, Malcolm M.; JRASC, +# Vol. 64, pp.129-162; June 1970; SAO/NASA Astrophysics Data System (ADS) +# http://adsabs.harvard.edu/abs/1970JRASC..64..129T from p.156: Yukon +# Territory Commissioner's Order 1967-59 Interpretation Ordinance ... +# +# 1. Commissioner's Order 1966-20 dated at Whitehorse in the Yukon +# Territory on 27th January, 1966, is hereby revoked. +# +# 2. Yukon (East) Standard Time as defined by section 36 of the +# Interpretation Ordinance from and after mid-night on the 28th day of May, +# 1967 shall be reckoned in the same manner as Pacific Standard Time, that +# is to say, eight hours behind Greenwich Time in the area of the Yukon +# Territory lying east of the 138th degree longitude west. +# +# 3. In the remainder of the Territory, lying west of the 138th degree +# longitude west, Yukon (West) Standard Time shall be reckoned as nine +# hours behind Greenwich Time. +# +# * Yukon Standard Time defined as Pacific Standard Time, YCO 1973/214 +# http://www.canlii.org/en/yk/laws/regu/yco-1973-214/latest/yco-1973-214.html +# C.O. 1973/214 INTERPRETATION ACT ... +# +# 1. Effective October 28, 1973 Commissioner's Order 1967/59 is hereby +# revoked. +# +# 2. Yukon Standard Time as defined by section 36 of the Interpretation +# Act from and after midnight on the twenty-eighth day of October, 1973 +# shall be reckoned in the same manner as Pacific Standard Time, that is +# to say eight hours behind Greenwich Time. +# +# * O.I.C. 1980/02 INTERPRETATION ACT +# http://? - no online source found +# +# * Yukon Daylight Saving Time, YOIC 1987/56 +# http://www.canlii.org/en/yk/laws/regu/yoic-1987-56/latest/yoic-1987-56.html +# O.I.C. 1987/056 INTERPRETATION ACT ... +# +# In every year between +# (a) two o'clock in the morning in the first Sunday in April, and +# (b) two o'clock in the morning in the last Sunday in October, +# Standard Time shall be reckoned as seven hours behind Greenwich Time and +# called Yukon Daylight Saving Time. +# ... +# Dated ... 9th day of March, A.D., 1987. +# +# * Yukon Daylight Saving Time 2006, YOIC 2006/127 +# http://www.canlii.org/en/yk/laws/regu/yoic-2006-127/latest/yoic-2006-127.html +# O.I.C. 2006/127 INTERPRETATION ACT ... +# +# 1. In Yukon each year the time for general purposes shall be 7 hours +# behind Greenwich mean time during the period commencing at two o'clock +# in the forenoon on the second Sunday of March and ending at two o'clock +# in the forenoon on the first Sunday of November and shall be called +# Yukon Daylight Saving Time. +# +# 2. Order-in-Council 1987/56 is revoked. +# +# 3. This order comes into force January 1, 2007. +# +# * Interpretation Act, RSY 2002, c 125 +# http://www.canlii.org/en/yk/laws/stat/rsy-2002-c-125/latest/rsy-2002-c-125.html # From Rives McDow (1999-09-04): # Nunavut ... moved ... to incorporate the whole territory into one time zone. -- 2.1.0