From 483247fc9b735097ff2c06531204913317a5056c Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Fri, 18 Mar 2016 11:05:06 -0700 Subject: [PATCH] Adjust Easter Island transitions to match decree * NEWS, southamerica (Chile): 2016 and later transitions are at 24:00 local time, not at 24:00 mainland time. --- NEWS | 10 +++++----- southamerica | 31 +++++++++++++++---------------- 2 files changed, 20 insertions(+), 21 deletions(-) diff --git a/NEWS b/NEWS index e60f0d3..fabc6f4 100644 --- a/NEWS +++ b/NEWS @@ -8,11 +8,11 @@ Unreleased, experimental changes Chile reverts from permanent to seasonal DST. (Thanks to Juan Correa for the heads-up, and to Tim Parenti for corrections.) - Guess that future America/Santiago and Antarctica/Palmer - transitions are August's and May's second Saturdays at 24:00 local - time, and that Pacific/Easter stays two hours behind. Also, call - the period from 2014-09-07 through 2016-05-14 daylight saving time - instead of standard time, as that seems more appropriate now. + Guess that future transitions are August's and May's second + Saturdays at 24:00 local time; this differs from the previous + practice of 24:00 mainland time. Also, call the period from + 2014-09-07 through 2016-05-14 daylight saving time instead of + standard time, as that seems more appropriate now. Release 2016b - 2016-03-12 17:30:14 -0800 diff --git a/southamerica b/southamerica index 63e719c..38f63d9 100644 --- a/southamerica +++ b/southamerica @@ -1221,20 +1221,19 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # From Paul Eggert (2015-03-03): # For now, assume that the extension will persist indefinitely. -# From Juan Correa (2016-03-13): -# Today the Chilean Ministry of Energy announced that they will go back to a -# DST scheme this year. That means clocks will go back 1 hour at 00:00 May -# 15th (jumping back to May 14th); and will go forward by 1 hour on 00:00, -# August 14th. This was decided after a public outcry during winter, when the -# sunrise for Santiago went as late as 08:45.... -# http://www.soychile.cl/Santiago/Sociedad/2016/03/13/380779/Vuelve-el-horario-de-invierno-a-partir-de-la-segunda-semana-de-mayo.aspx -# http://www.biobiochile.cl/2016/03/13/gobierno-retrocede-y-decreta-el-regreso-del-horario-de-invierno.shtml -# http://www.t13.cl/noticia/nacional/chile-volvera-implementar-horario-invierno -# -# From Paul Eggert (2016-03-14): -# For now, guess that future transitions are May's and August's second -# Saturdays at 24:00 local time, and that Pacific/Easter always stays 2 -# hours behind. +# From Juan Correa (2016-03-18): +# The decree regarding DST has been published in today's Official Gazette: +# http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ +# http://www.leychile.cl/Navegar?idNorma=1088502 +# It does consider the second Saturday of May and August as the dates +# for the transition; and it lists DST dates until 2019, but I think +# this scheme will stick. +# +# From Paul Eggert (2016-03-18): +# The decree says transitions occur at 24:00 local time, which differs +# from the 2008 transitions, which were documented to occur at 24:00 +# on the mainland and 22:00 in Easter Island. Guess that this new +# practice starts this year and continues indefinitely. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Chile 1927 1931 - Sep 1 0:00 1:00 S @@ -1269,8 +1268,8 @@ Rule Chile 2011 only - May Sun>=2 3:00u 0 - Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S -Rule Chile 2016 max - May Sun>=9 3:00u 0 - -Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S +Rule Chile 2016 max - May Sat>=8 24:00 0 - +Rule Chile 2016 max - Aug Sat>=8 24:00 1:00 S # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME GMTOFF RULES FORMAT [UNTIL] -- 2.5.0