--- a/components/timezone/northamerica Thu Apr 16 04:52:37 2015 -0700
+++ b/components/timezone/northamerica Thu May 07 05:54:24 2015 -0700
@@ -227,9 +227,14 @@
# The law doesn't give abbreviations.
#
# From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
-# Public law 106-564 (2000-12-23) introduced the abbreviation
-# "Chamorro Standard Time" for time in Guam and the Northern Marianas.
-# See the file "australasia".
+# Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time"
+# for time in Guam and the Northern Marianas. See the file "australasia".
+#
+# From Paul Eggert (2015-04-17):
+# HST and HDT are standardized abbreviations for Hawaii-Aleutian
+# standard and daylight times. See section 9.47 (p 234) of the
+# U.S. Government Printing Office Style Manual (2008)
+# http://www.gpo.gov/fdsys/pkg/GPO-STYLEMANUAL-2008/pdf/GPO-STYLEMANUAL-2008.pdf
# From Arthur David Olson, 2005-08-09
# The following was signed into law on 2005-08-08.
@@ -536,7 +541,7 @@
-11:00 - BST 1969
-11:00 US B%sT 1983 Oct 30 2:00
-10:00 US AH%sT 1983 Nov 30
- -10:00 US HA%sT
+ -10:00 US H%sT
# The following switches don't quite make our 1970 cutoff.
#
# Shanks writes that part of southwest Alaska (e.g. Aniak)
@@ -1841,17 +1846,115 @@
# 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;
+# c. 7 defines Yukon standard time as UTC-9....
# see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
+# [http://canlii.ca/t/7vhg]
# * 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.
@@ -2077,7 +2180,7 @@
-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 1966 Jul 1 2:00
+ -9:00 NT_YK Y%sT 1967 May 28 0:00
-8:00 NT_YK P%sT 1980
-8:00 Canada P%sT
Zone America/Dawson -9:17:40 - LMT 1900 Aug 20