[tz] Morocco not ending DST tonight - instead extending by one month
milamberspace at gmail.com
Mon Sep 30 13:05:34 UTC 2013
Le 30/09/2013 13:53, Milamber a ecrit :
> Please note too that the Moroccan government has change too the date
> to the beginning of DST at the last sunday of March (April before).
I've posted this mail because I think that the proposed patch seems not
include this change and the management of Ramadan time (return to GMT+0
when the month of Ramadan is inside the DST time).
> == French ==
> Le décret en question établit d'ailleurs que dorénavant, on avancera
> d'une heure nos montres par rapport à l'heure de Greenwich (GMT) à la
> fin de chaque mois de mars et on retournera à " l'heure d'hiver " à la
> fin de chaque mois d'octobre.
> == English translation via google ==
> The Decree also establishes that now, an hour we advance our watches
> over Greenwich Mean Time (GMT) at the end of each March and "winter
> time" we will return to at the end of every October.
> Le 30/09/2013 05:56, Paul Eggert a ecrit :
>> Come to think of it, my previously-proposed patch can't
>> be right for 2036 and 2037. as the predicted dates for
>> Ramadan in those years overlap the new fall-back dates.
>> Here's a revised patch that takes this into account; this
>> matters only for time stamps after 2035.
>> As a result of this change, Africa/Casablanca becomes the
>> only Zone for which zic cannot generate a POSIX environment
>> variable (for time stamps past 2038).
>> I've pushed this revised edition to the experimental version
>> on github.
>> diff --git a/NEWS b/NEWS
>> index 14f75fa..c89e339 100644
>> --- a/NEWS
>> +++ b/NEWS
>> @@ -3,6 +3,11 @@ News for the tz database
>> Unreleased, experimental changes
>> + Changes affecting current and near-future time stamps
>> + Morocco changed their rules, and now falls back the first Sunday
>> + in October, not September. (Thanks to Steffen Thorsen.)
>> Changes affecting 'zic'
>> 'zic' now runs on platforms that lack both hard links and symlinks.
>> diff --git a/africa b/africa
>> index 9a5d93b..16fe153 100644
>> --- a/africa
>> +++ b/africa
>> @@ -858,13 +858,23 @@ Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou
>> # transitions would be 2013-07-07 and 2013-08-10; see:
>> -# From Paul Eggert (2013-07-03):
>> +# From Steffen Thorsen (2013-09-28):
>> +# Morocco extends DST by one month, on very short notice, just 1 day
>> +# before it was going to end. There is a new decree (2.13.781) for
>> +# this, where DST from now on goes from last Sunday of March at 02:00
>> +# to last Sunday of October at 03:00, similar to EU rules. Official
>> +# source (French):
>> +# Another source (specifying the time for start and end in the decree):
>> +# From Paul Eggert (2013-09-29):
>> # To estimate what the Moroccan government will do in future years,
>> -# transition dates for 2014 through 2021 were determined by running
>> +# transition dates for 2014 through 2037 were determined by running
>> # the following program under GNU Emacs 24.3:
>> # (let ((islamic-year 1435))
>> -# (while (< islamic-year 1444)
>> +# (while (< islamic-year 1460)
>> # (let ((a
>> # (calendar-gregorian-from-absolute
>> # (calendar-islamic-to-absolute (list 9 1 islamic-year))))
>> @@ -880,12 +890,12 @@ Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou
>> # (setq islamic-year (+ 1 islamic-year))))
>> # with the results hand-edited for 2020-2022, when the normal spring-forward
>> -# date falls during the estimated Ramadan.
>> -# From 2023 through 2038 Ramadan is not predicted to overlap with
>> -# daylight saving time. Starting in 2039 there will be overlap again,
>> +# date falls during the estimated Ramadan; with results removed for 2023-2035,
>> +# where the estimated Ramadan falls entirely outside daylight-saving time,
>> +# and the results hand-edited again for 2036-2037, where the normal fall-back
>> +# date falls during the estimated Ramadan. Problems continue after that,
>> # but 32-bit time_t values roll around in 2038 so for now do not worry
>> -# about dates after 2038.
>> +# about dates after 2037.
>> # RULE NAME FROM TO TYPE IN ON AT SAVE LETTER/S
>> @@ -913,11 +923,12 @@ Rule Morocco 2010 only - Aug 8 0:00 0 -
>> Rule Morocco 2011 only - Apr 3 0:00 1:00 S
>> Rule Morocco 2011 only - Jul 31 0 0 -
>> Rule Morocco 2012 2019 - Apr lastSun 2:00 1:00 S
>> -Rule Morocco 2012 max - Sep lastSun 3:00 0 -
>> +Rule Morocco 2012 only - Sep 30 3:00 0 -
>> Rule Morocco 2012 only - Jul 20 3:00 0 -
>> Rule Morocco 2012 only - Aug 20 2:00 1:00 S
>> Rule Morocco 2013 only - Jul 7 3:00 0 -
>> Rule Morocco 2013 only - Aug 10 2:00 1:00 S
>> +Rule Morocco 2013 2035 - Oct lastSun 3:00 0 -
>> Rule Morocco 2014 only - Jun 29 3:00 0 -
>> Rule Morocco 2014 only - Jul 29 2:00 1:00 S
>> Rule Morocco 2015 only - Jun 18 3:00 0 -
>> @@ -934,6 +945,8 @@ Rule Morocco 2020 only - May 24 2:00 1:00 S
>> Rule Morocco 2021 only - May 13 2:00 1:00 S
>> Rule Morocco 2022 only - May 3 2:00 1:00 S
>> Rule Morocco 2023 max - Apr lastSun 2:00 1:00 S
>> +Rule Morocco 2036 only - Oct 21 3:00 0 -
>> +Rule Morocco 2037 only - Oct 11 3:00 0 -
>> # Zone NAME GMTOFF RULES FORMAT [UNTIL]
>> Zone Africa/Casablanca -0:30:20 - LMT 1913 Oct 26
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