>From 2b17ca5fff5ec36babc6ef8b03eaf841479e7bca Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Fri, 17 Apr 2015 11:49:05 -0700 Subject: [PROPOSED PATCH] Use HST/HDT to abbreviate Hawaii-Aleutian time * northamerica (America/Adak): For time stamps since 1983, use HST/HDT instead of HAST/HADT, as per US GPO style. * NEWS: Document this. --- NEWS | 10 ++++++++++ northamerica | 13 +++++++++---- 2 files changed, 19 insertions(+), 4 deletions(-) diff --git a/NEWS b/NEWS index 342ce71..3ca3a30 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,15 @@ News for the tz database +Unreleased, experimental changes + + Change affecting past and future time zone abbreviations + + The abbreviations for Hawaii-Aleutian standard and daylight times + have been changed from HAST/HADT to HST/HDT, as per US Government + Printing Office style. This affects only America/Adak since 1983, + as America/Honolulu was already using the new style. + + Release 2015c - 2015-04-11 08:55:55 -0700 Changes affecting future time stamps diff --git a/northamerica b/northamerica index debc7dc..18f0140 100644 --- a/northamerica +++ b/northamerica @@ -227,9 +227,14 @@ Zone PST8PDT -8:00 US P%sT # 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 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18 -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) -- 2.1.0