xref: /illumos-gate/usr/src/data/zoneinfo/africa (revision a48fdbef3a00fbebe91cb7211c789eff0e39c957)
1# tzdb data for Africa and environs
2
3# This file is in the public domain, so clarified as of
4# 2009-05-17 by Arthur David Olson.
5
6# This file is by no means authoritative; if you think you know better,
7# go ahead and edit the file (and please send any changes to
8# tz@iana.org for general use in the future).  For more, please see
9# the file CONTRIBUTING in the tz distribution.
10
11# From Paul Eggert (2018-05-27):
12#
13# Unless otherwise specified, the source for data through 1990 is:
14# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
15# San Diego: ACS Publications, Inc. (2003).
16# Unfortunately this book contains many errors and cites no sources.
17#
18# Many years ago Gwillim Law wrote that a good source
19# for time zone data was the International Air Transport
20# Association's Standard Schedules Information Manual (IATA SSIM),
21# published semiannually.  Law sent in several helpful summaries
22# of the IATA's data after 1990.  Except where otherwise noted,
23# IATA SSIM is the source for entries after 1990.
24#
25# Another source occasionally used is Edward W. Whitman, World Time Differences,
26# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
27# I found in the UCLA library.
28#
29# For data circa 1899, a common source is:
30# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
31# https://www.jstor.org/stable/1774359
32#
33# For the 1911/1912 establishment of standard time in French possessions, see:
34# Société Française de Physique, Recueil de constantes physiques (1913),
35# page 752, 18b.
36#
37# European-style abbreviations are commonly used along the Mediterranean.
38# For sub-Saharan Africa abbreviations were less standardized.
39# Previous editions of this database used WAT, CAT, SAT, and EAT
40# for UT +00 through +03, respectively,
41# but in 1997 Mark R V Murray reported that
42# 'SAST' is the official abbreviation for +02 in the country of South Africa,
43# 'CAT' is commonly used for +02 in countries north of South Africa, and
44# 'WAT' is probably the best name for +01, as the common phrase for
45# the area that includes Nigeria is "West Africa".
46#
47# To summarize, the following abbreviations seemed to have some currency:
48#	 +00	GMT	Greenwich Mean Time
49#	 +02	CAT	Central Africa Time
50#	 +02	SAST	South Africa Standard Time
51# and Murray suggested the following abbreviation:
52#	 +01	WAT	West Africa Time
53# Murray's suggestion seems to have caught on in news reports and the like.
54# I vaguely recall 'WAT' also being used for -01 in the past but
55# cannot now come up with solid citations.
56#
57# I invented the following abbreviations in the 1990s:
58#	 +02	WAST	West Africa Summer Time
59#	 +03	CAST	Central Africa Summer Time
60#	 +03	SAST	South Africa Summer Time
61#	 +03	EAT	East Africa Time
62# 'EAT' seems to have caught on and is in current timestamps, and though
63# the other abbreviations are rarer and are only in past timestamps,
64# they are paired with better-attested non-DST abbreviations.
65# Corrections are welcome.
66
67# Algeria
68# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
69Rule	Algeria	1916	only	-	Jun	14	23:00s	1:00	S
70Rule	Algeria	1916	1919	-	Oct	Sun>=1	23:00s	0	-
71Rule	Algeria	1917	only	-	Mar	24	23:00s	1:00	S
72Rule	Algeria	1918	only	-	Mar	 9	23:00s	1:00	S
73Rule	Algeria	1919	only	-	Mar	 1	23:00s	1:00	S
74Rule	Algeria	1920	only	-	Feb	14	23:00s	1:00	S
75Rule	Algeria	1920	only	-	Oct	23	23:00s	0	-
76Rule	Algeria	1921	only	-	Mar	14	23:00s	1:00	S
77Rule	Algeria	1921	only	-	Jun	21	23:00s	0	-
78Rule	Algeria	1939	only	-	Sep	11	23:00s	1:00	S
79Rule	Algeria	1939	only	-	Nov	19	 1:00	0	-
80Rule	Algeria	1944	1945	-	Apr	Mon>=1	 2:00	1:00	S
81Rule	Algeria	1944	only	-	Oct	 8	 2:00	0	-
82Rule	Algeria	1945	only	-	Sep	16	 1:00	0	-
83Rule	Algeria	1971	only	-	Apr	25	23:00s	1:00	S
84Rule	Algeria	1971	only	-	Sep	26	23:00s	0	-
85Rule	Algeria	1977	only	-	May	 6	 0:00	1:00	S
86Rule	Algeria	1977	only	-	Oct	21	 0:00	0	-
87Rule	Algeria	1978	only	-	Mar	24	 1:00	1:00	S
88Rule	Algeria	1978	only	-	Sep	22	 3:00	0	-
89Rule	Algeria	1980	only	-	Apr	25	 0:00	1:00	S
90Rule	Algeria	1980	only	-	Oct	31	 2:00	0	-
91# See Europe/Paris for PMT-related transitions.
92# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
93Zone	Africa/Algiers	0:12:12 -	LMT	1891 Mar 16
94			0:09:21	-	PMT	1911 Mar 11 # Paris Mean Time
95			0:00	Algeria	WE%sT	1940 Feb 25  2:00
96			1:00	Algeria	CE%sT	1946 Oct  7
97			0:00	-	WET	1956 Jan 29
98			1:00	-	CET	1963 Apr 14
99			0:00	Algeria	WE%sT	1977 Oct 21
100			1:00	Algeria	CE%sT	1979 Oct 26
101			0:00	Algeria	WE%sT	1981 May
102			1:00	-	CET
103
104# Cape Verde / Cabo Verde
105#
106# From Paul Eggert (2018-02-16):
107# Shanks gives 1907 for the transition to +02.
108# For now, ignore that and follow the 1911-05-26 Portuguese decree
109# (see Europe/Lisbon).
110#
111# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
112Zone Atlantic/Cape_Verde -1:34:04 -	LMT	1912 Jan 01  2:00u # Praia
113			-2:00	-	-02	1942 Sep
114			-2:00	1:00	-01	1945 Oct 15
115			-2:00	-	-02	1975 Nov 25  2:00
116			-1:00	-	-01
117
118# Chad
119# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
120Zone	Africa/Ndjamena	1:00:12 -	LMT	1912 Jan  1 # N'Djamena
121			1:00	-	WAT	1979 Oct 14
122			1:00	1:00	WAST	1980 Mar  8
123			1:00	-	WAT
124
125# Burkina Faso
126# Côte d'Ivoire (Ivory Coast)
127# The Gambia
128# Ghana
129# Guinea
130# Iceland
131# Mali
132# Mauritania
133# St Helena
134# Senegal
135# Sierra Leone
136# Togo
137
138# The other parts of the St Helena territory are similar:
139#	Tristan da Cunha: on GMT, say Whitman and the CIA
140#	Ascension: on GMT, say the USNO (1995-12-21) and the CIA
141#	Gough (scientific station since 1955; sealers wintered previously):
142#		on GMT, says the CIA
143#	Inaccessible, Nightingale: uninhabited
144
145# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
146Zone	Africa/Abidjan	-0:16:08 -	LMT	1912 Jan  1
147			 0:00	-	GMT
148
149###############################################################################
150
151# Egypt
152
153# Milne says Cairo used 2:05:08.9, the local mean time of the Abbasizeh
154# observatory.  Milne also says that the official time for
155# Egypt was mean noon at the Great Pyramid, 2:04:30.5, but apparently this
156# did not apply to Cairo, Alexandria, or Port Said.
157
158# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
159Rule	Egypt	1940	only	-	Jul	15	0:00	1:00	S
160Rule	Egypt	1940	only	-	Oct	 1	0:00	0	-
161Rule	Egypt	1941	only	-	Apr	15	0:00	1:00	S
162Rule	Egypt	1941	only	-	Sep	16	0:00	0	-
163Rule	Egypt	1942	1944	-	Apr	 1	0:00	1:00	S
164Rule	Egypt	1942	only	-	Oct	27	0:00	0	-
165Rule	Egypt	1943	1945	-	Nov	 1	0:00	0	-
166Rule	Egypt	1945	only	-	Apr	16	0:00	1:00	S
167Rule	Egypt	1957	only	-	May	10	0:00	1:00	S
168Rule	Egypt	1957	1958	-	Oct	 1	0:00	0	-
169Rule	Egypt	1958	only	-	May	 1	0:00	1:00	S
170Rule	Egypt	1959	1981	-	May	 1	1:00	1:00	S
171Rule	Egypt	1959	1965	-	Sep	30	3:00	0	-
172Rule	Egypt	1966	1994	-	Oct	 1	3:00	0	-
173Rule	Egypt	1982	only	-	Jul	25	1:00	1:00	S
174Rule	Egypt	1983	only	-	Jul	12	1:00	1:00	S
175Rule	Egypt	1984	1988	-	May	 1	1:00	1:00	S
176Rule	Egypt	1989	only	-	May	 6	1:00	1:00	S
177Rule	Egypt	1990	1994	-	May	 1	1:00	1:00	S
178# IATA (after 1990) says transitions are at 0:00.
179# Go with IATA starting in 1995, except correct 1995 entry from 09-30 to 09-29.
180
181# From Alexander Krivenyshev (2011-04-20):
182# "...Egypt's interim cabinet decided on Wednesday to cancel daylight
183# saving time after a poll posted on its website showed the majority of
184# Egyptians would approve the cancellation."
185#
186# Egypt to cancel daylight saving time
187# http://www.almasryalyoum.com/en/node/407168
188# or
189# http://www.worldtimezone.com/dst_news/dst_news_egypt04.html
190Rule	Egypt	1995	2010	-	Apr	lastFri	 0:00s	1:00	S
191Rule	Egypt	1995	2005	-	Sep	lastThu	24:00	0	-
192# From Steffen Thorsen (2006-09-19):
193# The Egyptian Gazette, issue 41,090 (2006-09-18), page 1, reports:
194# Egypt will turn back clocks by one hour at the midnight of Thursday
195# after observing the daylight saving time since May.
196# http://news.gom.com.eg/gazette/pdf/2006/09/18/01.pdf
197Rule	Egypt	2006	only	-	Sep	21	24:00	0	-
198# From Dirk Losch (2007-08-14):
199# I received a mail from an airline which says that the daylight
200# saving time in Egypt will end in the night of 2007-09-06 to 2007-09-07.
201# From Jesper Nørgaard Welen (2007-08-15): [The following agree:]
202# http://www.nentjes.info/Bill/bill5.htm
203# https://www.timeanddate.com/worldclock/city.html?n=53
204# From Steffen Thorsen (2007-09-04): The official information...:
205# http://www.sis.gov.eg/En/EgyptOnline/Miscellaneous/000002/0207000000000000001580.htm
206Rule	Egypt	2007	only	-	Sep	Thu>=1	24:00	0	-
207# From Abdelrahman Hassan (2007-09-06):
208# Due to the Hijri (lunar Islamic calendar) year being 11 days shorter
209# than the year of the Gregorian calendar, Ramadan shifts earlier each
210# year. This year it will be observed September 13 (September is quite
211# hot in Egypt), and the idea is to make fasting easier for workers by
212# shifting business hours one hour out of daytime heat. Consequently,
213# unless discontinued, next DST may end Thursday 28 August 2008.
214# From Paul Eggert (2007-08-17):
215# For lack of better info, assume the new rule is last Thursday in August.
216
217# From Petr Machata (2009-04-06):
218# The following appeared in Red Hat bugzilla[1] (edited):
219#
220# > $ zdump -v /usr/share/zoneinfo/Africa/Cairo | grep 2009
221# > /usr/share/zoneinfo/Africa/Cairo  Thu Apr 23 21:59:59 2009 UTC = Thu =
222# Apr 23
223# > 23:59:59 2009 EET isdst=0 gmtoff=7200
224# > /usr/share/zoneinfo/Africa/Cairo  Thu Apr 23 22:00:00 2009 UTC = Fri =
225# Apr 24
226# > 01:00:00 2009 EEST isdst=1 gmtoff=10800
227# > /usr/share/zoneinfo/Africa/Cairo  Thu Aug 27 20:59:59 2009 UTC = Thu =
228# Aug 27
229# > 23:59:59 2009 EEST isdst=1 gmtoff=10800
230# > /usr/share/zoneinfo/Africa/Cairo  Thu Aug 27 21:00:00 2009 UTC = Thu =
231# Aug 27
232# > 23:00:00 2009 EET isdst=0 gmtoff=7200
233#
234# > end date should be Thu Sep 24 2009 (Last Thursday in September at 23:59=
235# :59)
236# > http://support.microsoft.com/kb/958729/
237#
238# timeanddate[2] and another site I've found[3] also support that.
239#
240# [1] https://bugzilla.redhat.com/show_bug.cgi?id=492263
241# [2] https://www.timeanddate.com/worldclock/clockchange.html?n=53
242# [3] https://wwp.greenwichmeantime.com/time-zone/africa/egypt/
243
244# From Arthur David Olson (2009-04-20):
245# In 2009 (and for the next several years), Ramadan ends before the fourth
246# Thursday in September; Egypt is expected to revert to the last Thursday
247# in September.
248
249# From Steffen Thorsen (2009-08-11):
250# We have been able to confirm the August change with the Egyptian Cabinet
251# Information and Decision Support Center:
252# https://www.timeanddate.com/news/time/egypt-dst-ends-2009.html
253#
254# The Middle East News Agency
255# https://www.mena.org.eg/index.aspx
256# also reports "Egypt starts winter time on August 21"
257# today in article numbered "71, 11/08/2009 12:25 GMT."
258# Only the title above is available without a subscription to their service,
259# and can be found by searching for "winter" in their search engine
260# (at least today).
261
262# From Alexander Krivenyshev (2010-07-20):
263# According to News from Egypt - Al-Masry Al-Youm Egypt's cabinet has
264# decided that Daylight Saving Time will not be used in Egypt during
265# Ramadan.
266#
267# Arabic translation:
268# "Clocks to go back during Ramadan - and then forward again"
269# http://www.almasryalyoum.com/en/news/clocks-go-back-during-ramadan-and-then-forward-again
270# http://www.worldtimezone.com/dst_news/dst_news_egypt02.html
271
272# From Ahmad El-Dardiry (2014-05-07):
273# Egypt is to change back to Daylight system on May 15
274# http://english.ahram.org.eg/NewsContent/1/64/100735/Egypt/Politics-/Egypts-government-to-reapply-daylight-saving-time-.aspx
275
276# From Gunther Vermier (2014-05-13):
277# our Egypt office confirms that the change will be at 15 May "midnight" (24:00)
278
279# From Imed Chihi (2014-06-04):
280# We have finally "located" a precise official reference about the DST changes
281# in Egypt.  The Ministers Cabinet decision is explained at
282# http://www.cabinet.gov.eg/Media/CabinetMeetingsDetails.aspx?id=347 ...
283# [T]his (Arabic) site is not accessible outside Egypt, but the page ...
284# translates into: "With regard to daylight saving time, it is scheduled to
285# take effect at exactly twelve o'clock this evening, Thursday, 15 MAY 2014,
286# to be suspended by twelve o'clock on the evening of Thursday, 26 JUN 2014,
287# and re-established again at the end of the month of Ramadan, at twelve
288# o'clock on the evening of Thursday, 31 JUL 2014."  This statement has been
289# reproduced by other (more accessible) sites[, e.g.,]...
290# http://elgornal.net/news/news.aspx?id=4699258
291
292# From Steffen Thorsen (2015-04-08):
293# Egypt will start DST on midnight after Thursday, April 30, 2015.
294# This is based on a law (no 35) from May 15, 2014 saying it starts the last
295# Thursday of April....  Clocks will still be turned back for Ramadan, but
296# dates not yet announced....
297# http://almogaz.com/news/weird-news/2015/04/05/1947105 ...
298# https://www.timeanddate.com/news/time/egypt-starts-dst-2015.html
299
300# From Ahmed Nazmy (2015-04-20):
301# Egypt's ministers cabinet just announced ... that it will cancel DST at
302# least for 2015.
303#
304# From Tim Parenti (2015-04-20):
305# http://english.ahram.org.eg/WriterArticles/NewsContentP/1/128195/Egypt/No-daylight-saving-this-summer-Egypts-prime-minist.aspx
306# "Egypt's cabinet agreed on Monday not to switch clocks for daylight saving
307# time this summer, and carry out studies on the possibility of canceling the
308# practice altogether in future years."
309#
310# From Paul Eggert (2015-04-24):
311# Yesterday the office of Egyptian President El-Sisi announced his
312# decision to abandon DST permanently.  See Ahram Online 2015-04-24.
313# http://english.ahram.org.eg/NewsContent/1/64/128509/Egypt/Politics-/Sisi-cancels-daylight-saving-time-in-Egypt.aspx
314
315# From Steffen Thorsen (2016-04-29):
316# Egypt will have DST from July 7 until the end of October....
317# http://english.ahram.org.eg/NewsContentP/1/204655/Egypt/Daylight-savings-time-returning-to-Egypt-on--July.aspx
318# From Mina Samuel (2016-07-04):
319# Egyptian government took the decision to cancel the DST,
320
321# From Ahmad ElDardiry (2023-03-01):
322# Egypt officially announced today that daylight savings will be
323# applied from last Friday of April to last Thursday of October.
324# From Paul Eggert (2023-03-01):
325# Assume transitions are at 00:00 and 24:00 respectively.
326# From Amir Adib (2023-03-07):
327# https://www.facebook.com/EgyptianCabinet/posts/638829614954129/
328
329Rule	Egypt	2008	only	-	Aug	lastThu	24:00	0	-
330Rule	Egypt	2009	only	-	Aug	20	24:00	0	-
331Rule	Egypt	2010	only	-	Aug	10	24:00	0	-
332Rule	Egypt	2010	only	-	Sep	 9	24:00	1:00	S
333Rule	Egypt	2010	only	-	Sep	lastThu	24:00	0	-
334Rule	Egypt	2014	only	-	May	15	24:00	1:00	S
335Rule	Egypt	2014	only	-	Jun	26	24:00	0	-
336Rule	Egypt	2014	only	-	Jul	31	24:00	1:00	S
337Rule	Egypt	2014	only	-	Sep	lastThu	24:00	0	-
338Rule	Egypt	2023	max	-	Apr	lastFri	 0:00	1:00	S
339Rule	Egypt	2023	max	-	Oct	lastThu	24:00	0	-
340
341# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
342		#STDOFF	2:05:08.9
343Zone	Africa/Cairo	2:05:09 -	LMT	1900 Oct
344			2:00	Egypt	EE%sT
345
346# Guinea-Bissau
347#
348# From Paul Eggert (2018-02-16):
349# Shanks gives 1911-05-26 for the transition to WAT,
350# evidently confusing the date of the Portuguese decree
351# (see Europe/Lisbon) with the date that it took effect.
352#
353# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
354Zone	Africa/Bissau	-1:02:20 -	LMT	1912 Jan  1  1:00u
355			-1:00	-	-01	1975
356			 0:00	-	GMT
357
358# Comoros
359# Djibouti
360# Eritrea
361# Ethiopia
362# Kenya
363# Madagascar
364# Mayotte
365# Somalia
366# Tanzania
367# Uganda
368
369# From P Chan (2020-10-24):
370#
371# The standard time of GMT+2:30 was adopted in the East Africa Protectorate....
372# [The Official Gazette, 1908-05-01, p 274]
373# https://books.google.com/books?id=e-cAC-sjPSEC&pg=PA274
374#
375# At midnight on 30 June 1928 the clocks throughout Kenya was put forward
376# half an hour by the Alteration of Time Ordinance, 1928.
377# https://gazettes.africa/archive/ke/1928/ke-government-gazette-dated-1928-05-11-no-28.pdf
378# [Ordinance No. 11 of 1928, The Official Gazette, 1928-06-26, p 813]
379# https://books.google.com/books?id=2S0S6os32ZUC&pg=PA813
380#
381# The 1928 ordinance was repealed by the Alteration of Time (repeal) Ordinance,
382# 1929 and the time was restored to GMT+2:30 at midnight on 4 January 1930.
383# [Ordinance No. 97 of 1929, The Official Gazette, 1929-12-31, p 2701]
384# https://books.google.com/books?id=_g18jIZQlwwC&pg=PA2701
385#
386# The Alteration of Time Ordinance, 1936 changed the time to GMT+2:45
387# and repealed the previous ordinance at midnight on 31 December 1936.
388# [The Official Gazette, 1936-07-21, p 705]
389# https://books.google.com/books?id=K7j41z0aC5wC&pg=PA705
390#
391# The Defence (Amendment of Laws No. 120) Regulations changed the time
392# to GMT+3 at midnight on 31 July 1942.
393# [Kenya Official Gazette Supplement No. 32, 1942-07-21, p 331]
394# https://books.google.com/books?hl=zh-TW&id=c_E-AQAAIAAJ&pg=PA331
395# The provision of the 1936 ordinance was not repealed and was later
396# incorporated in the Interpretation and General Clauses Ordinance in 1948.
397# Although it was overridden by the 1942 regulations.
398# [The Laws of Kenya in force on 1948-09-21, Title I, Chapter 1, 31]
399# https://dds.crl.edu/item/217517 (p.101)
400# In 1950 the Interpretation and General Clauses Ordinance was amended to adopt
401# GMT+3 permanently as the 1942 regulations were due to expire on 10 December.
402# https://books.google.com/books?id=jvR8mUDAwR0C&pg=PA787
403# [Ordinance No. 44 of 1950, Kenya Ordinances 1950, Vol. XXIX, p 294]
404# https://books.google.com/books?id=-_dQAQAAMAAJ&pg=PA294
405
406# From Paul Eggert (2020-10-24):
407# The 1908-05-01 announcement does not give an effective date,
408# so just say "1908 May".
409
410# From Paul Eggert (2018-09-11):
411# Unfortunately tzdb records only Western clock time in use in Ethiopia,
412# as the tzdb format is not up to properly recording a common Ethiopian
413# timekeeping practice that is based on solar time.  See:
414# Mortada D. If you have a meeting in Ethiopia, you'd better double
415# check the time. PRI's The World. 2015-01-30 15:15 -05.
416# https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-better-double-check-time
417
418# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
419Zone	Africa/Nairobi	2:27:16	-	LMT	1908 May
420			2:30	-	+0230	1928 Jun 30 24:00
421			3:00	-	EAT	1930 Jan  4 24:00
422			2:30	-	+0230	1936 Dec 31 24:00
423			2:45	-	+0245	1942 Jul 31 24:00
424			3:00	-	EAT
425
426# Liberia
427#
428# From Paul Eggert (2017-03-02):
429#
430# The Nautical Almanac for the Year 1970, p 264, is the source for -0:44:30.
431#
432# In 1972 Liberia was the last country to switch from a UT offset
433# that was not a multiple of 15 or 20 minutes.  The 1972 change was on
434# 1972-01-07, according to an entry dated 1972-01-04 on p 330 of:
435# Presidential Papers: First year of the administration of
436# President William R. Tolbert, Jr., July 23, 1971-July 31, 1972.
437# Monrovia: Executive Mansion.
438#
439# Use the abbreviation "MMT" before 1972, as the more accurate numeric
440# abbreviation "-004430" would be one byte over the POSIX limit.
441#
442# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
443Zone	Africa/Monrovia	-0:43:08 -	LMT	1882
444			-0:43:08 -	MMT	1919 Mar # Monrovia Mean Time
445			-0:44:30 -	MMT	1972 Jan 7 # approximately MMT
446			 0:00	-	GMT
447
448###############################################################################
449
450# Libya
451
452# From Even Scharning (2012-11-10):
453# Libya set their time one hour back at 02:00 on Saturday November 10.
454# https://www.libyaherald.com/2012/11/04/clocks-to-go-back-an-hour-on-saturday/
455# Here is an official source [in Arabic]: http://ls.ly/fb6Yc
456#
457# Steffen Thorsen forwarded a translation (2012-11-10) in
458# https://mm.icann.org/pipermail/tz/2012-November/018451.html
459#
460# From Tim Parenti (2012-11-11):
461# Treat the 2012-11-10 change as a zone change from UTC+2 to UTC+1.
462# The DST rules planned for 2013 and onward roughly mirror those of Europe
463# (either two days before them or five days after them, so as to fall on
464# lastFri instead of lastSun).
465
466# From Even Scharning (2013-10-25):
467# The scheduled end of DST in Libya on Friday, October 25, 2013 was
468# cancelled yesterday....
469# https://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/
470#
471# From Paul Eggert (2013-10-25):
472# For now, assume they're reverting to the pre-2012 rules of permanent UT +02.
473
474# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
475Rule	Libya	1951	only	-	Oct	14	2:00	1:00	S
476Rule	Libya	1952	only	-	Jan	 1	0:00	0	-
477Rule	Libya	1953	only	-	Oct	 9	2:00	1:00	S
478Rule	Libya	1954	only	-	Jan	 1	0:00	0	-
479Rule	Libya	1955	only	-	Sep	30	0:00	1:00	S
480Rule	Libya	1956	only	-	Jan	 1	0:00	0	-
481Rule	Libya	1982	1984	-	Apr	 1	0:00	1:00	S
482Rule	Libya	1982	1985	-	Oct	 1	0:00	0	-
483Rule	Libya	1985	only	-	Apr	 6	0:00	1:00	S
484Rule	Libya	1986	only	-	Apr	 4	0:00	1:00	S
485Rule	Libya	1986	only	-	Oct	 3	0:00	0	-
486Rule	Libya	1987	1989	-	Apr	 1	0:00	1:00	S
487Rule	Libya	1987	1989	-	Oct	 1	0:00	0	-
488Rule	Libya	1997	only	-	Apr	 4	0:00	1:00	S
489Rule	Libya	1997	only	-	Oct	 4	0:00	0	-
490Rule	Libya	2013	only	-	Mar	lastFri	1:00	1:00	S
491Rule	Libya	2013	only	-	Oct	lastFri	2:00	0	-
492# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
493Zone	Africa/Tripoli	0:52:44 -	LMT	1920
494			1:00	Libya	CE%sT	1959
495			2:00	-	EET	1982
496			1:00	Libya	CE%sT	1990 May  4
497# The 1996 and 1997 entries are from Shanks & Pottenger;
498# the IATA SSIM data entries contain some obvious errors.
499			2:00	-	EET	1996 Sep 30
500			1:00	Libya	CE%sT	1997 Oct  4
501			2:00	-	EET	2012 Nov 10  2:00
502			1:00	Libya	CE%sT	2013 Oct 25  2:00
503			2:00	-	EET
504
505# Mauritius
506
507# From Steffen Thorsen (2008-06-25):
508# Mauritius plans to observe DST from 2008-11-01 to 2009-03-31 on a trial
509# basis....
510# It seems that Mauritius observed daylight saving time from 1982-10-10 to
511# 1983-03-20 as well, but that was not successful....
512# https://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html
513
514# From Alex Krivenyshev (2008-06-25):
515# http://economicdevelopment.gov.mu/portal/site/Mainhomepage/menuitem.a42b24128104d9845dabddd154508a0c/?content_id=0a7cee8b5d69a110VgnVCM1000000a04a8c0RCRD
516
517# From Arthur David Olson (2008-06-30):
518# The www.timeanddate.com article cited by Steffen Thorsen notes that "A
519# final decision has yet to be made on the times that daylight saving
520# would begin and end on these dates." As a place holder, use midnight.
521
522# From Paul Eggert (2008-06-30):
523# Follow Thorsen on DST in 1982/1983, instead of Shanks & Pottenger.
524
525# From Steffen Thorsen (2008-07-10):
526# According to
527# http://www.lexpress.mu/display_article.php?news_id=111216
528# (in French), Mauritius will start and end their DST a few days earlier
529# than previously announced (2008-11-01 to 2009-03-31).  The new start
530# date is 2008-10-26 at 02:00 and the new end date is 2009-03-27 (no time
531# given, but it is probably at either 2 or 3 wall clock time).
532#
533# A little strange though, since the article says that they moved the date
534# to align itself with Europe and USA which also change time on that date,
535# but that means they have not paid attention to what happened in
536# USA/Canada last year (DST ends first Sunday in November). I also wonder
537# why that they end on a Friday, instead of aligning with Europe which
538# changes two days later.
539
540# From Alex Krivenyshev (2008-07-11):
541# Seems that English language article "The revival of daylight saving
542# time: Energy conservation?"- No. 16578 (07/11/2008) was originally
543# published on Monday, June 30, 2008...
544#
545# I guess that article in French "Le gouvernement avance l'introduction
546# de l'heure d'été" stating that DST in Mauritius starting on October 26
547# and ending on March 27, 2009 is the most recent one....
548# http://www.worldtimezone.com/dst_news/dst_news_mauritius02.html
549
550# From Riad M. Hossen Ally (2008-08-03):
551# The Government of Mauritius weblink
552# http://www.gov.mu/portal/site/pmosite/menuitem.4ca0efdee47462e7440a600248a521ca/?content_id=4728ca68b2a5b110VgnVCM1000000a04a8c0RCRD
553# Cabinet Decision of July 18th, 2008 states as follows:
554#
555# 4. ...Cabinet has agreed to the introduction into the National Assembly
556# of the Time Bill which provides for the introduction of summer time in
557# Mauritius. The summer time period which will be of one hour ahead of
558# the standard time, will be aligned with that in Europe and the United
559# States of America. It will start at two o'clock in the morning on the
560# last Sunday of October and will end at two o'clock in the morning on
561# the last Sunday of March the following year. The summer time for the
562# year 2008-2009 will, therefore, be effective as from 26 October 2008
563# and end on 29 March 2009.
564
565# From Ed Maste (2008-10-07):
566# THE TIME BILL (No. XXVII of 2008) Explanatory Memorandum states the
567# beginning / ending of summer time is 2 o'clock standard time in the
568# morning of the last Sunday of October / last Sunday of March.
569# http://www.gov.mu/portal/goc/assemblysite/file/bill2708.pdf
570
571# From Steffen Thorsen (2009-06-05):
572# According to several sources, Mauritius will not continue to observe
573# DST the coming summer...
574#
575# Some sources, in French:
576# http://www.defimedia.info/news/946/Rashid-Beebeejaun-:-«-L%E2%80%99heure-d%E2%80%99été-ne-sera-pas-appliquée-cette-année-»
577# http://lexpress.mu/Story/3398~Beebeejaun---Les-objectifs-d-économie-d-énergie-de-l-heure-d-été-ont-été-atteints-
578#
579# Our wrap-up:
580# https://www.timeanddate.com/news/time/mauritius-dst-will-not-repeat.html
581
582# From Arthur David Olson (2009-07-11):
583# The "mauritius-dst-will-not-repeat" wrapup includes this:
584# "The trial ended on March 29, 2009, when the clocks moved back by one hour
585# at 2am (or 02:00) local time..."
586
587# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
588Rule Mauritius	1982	only	-	Oct	10	0:00	1:00	-
589Rule Mauritius	1983	only	-	Mar	21	0:00	0	-
590Rule Mauritius	2008	only	-	Oct	lastSun	2:00	1:00	-
591Rule Mauritius	2009	only	-	Mar	lastSun	2:00	0	-
592# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
593Zone Indian/Mauritius	3:50:00 -	LMT	1907 # Port Louis
594			4:00 Mauritius	+04/+05
595# Agalega Is, Rodriguez
596# no information; probably like Indian/Mauritius
597
598
599# Morocco
600# See Africa/Ceuta for Spanish Morocco.
601
602# From Alex Krivenyshev (2008-05-09):
603# Here is an article that Morocco plan to introduce Daylight Saving Time between
604# 1 June, 2008 and 27 September, 2008.
605#
606# "... Morocco is to save energy by adjusting its clock during summer so it will
607# be one hour ahead of GMT between 1 June and 27 September, according to
608# Communication Minister and Government Spokesman, Khalid Naciri...."
609#
610# http://www.worldtimezone.com/dst_news/dst_news_morocco01.html
611# http://en.afrik.com/news11892.html
612
613# From Alex Krivenyshev (2008-05-09):
614# The Morocco time change can be confirmed on Morocco web site Maghreb Arabe
615# Presse:
616# http://www.map.ma/eng/sections/box3/morocco_shifts_to_da/view
617#
618# Morocco shifts to daylight time on June 1st through September 27, Govt.
619# spokesman.
620
621# From Patrice Scattolin (2008-05-09):
622# According to this article:
623# https://www.avmaroc.com/actualite/heure-dete-comment-a127896.html
624# (and republished here: <http://www.actu.ma/heure-dete-comment_i127896_0.html>)
625# the changes occur at midnight:
626#
627# Saturday night May 31st at midnight (which in French is to be
628# interpreted as the night between Saturday and Sunday)
629# Sunday night the 28th at midnight
630#
631# Seeing that the 28th is Monday, I am guessing that she intends to say
632# the midnight of the 28th which is the midnight between Sunday and
633# Monday, which jives with other sources that say that it's inclusive
634# June 1st to Sept 27th.
635#
636# The decision was taken by decree *2-08-224 *but I can't find the decree
637# published on the web.
638#
639# It's also confirmed here:
640# http://www.maroc.ma/NR/exeres/FACF141F-D910-44B0-B7FA-6E03733425D1.htm
641# on a government portal as being between June 1st and Sept 27th (not yet
642# posted in English).
643#
644# The following Google query will generate many relevant hits:
645# https://www.google.com/search?hl=en&q=Conseil+de+gouvernement+maroc+heure+avance&btnG=Search
646
647# From Steffen Thorsen (2008-08-27):
648# Morocco will change the clocks back on the midnight between August 31
649# and September 1. They originally planned to observe DST to near the end
650# of September:
651#
652# One article about it (in French):
653# http://www.menara.ma/fr/Actualites/Maroc/Societe/ci.retour_a_l_heure_gmt_a_partir_du_dimanche_31_aout_a_minuit_officiel_.default
654#
655# We have some further details posted here:
656# https://www.timeanddate.com/news/time/morocco-ends-dst-early-2008.html
657
658# From Steffen Thorsen (2009-03-17):
659# Morocco will observe DST from 2009-06-01 00:00 to 2009-08-21 00:00 according
660# to many sources, such as
661# http://news.marweb.com/morocco/entertainment/morocco-daylight-saving.html
662# http://www.medi1sat.ma/fr/depeche.aspx?idp=2312
663# (French)
664#
665# Our summary:
666# https://www.timeanddate.com/news/time/morocco-starts-dst-2009.html
667
668# From Alexander Krivenyshev (2009-03-17):
669# Here is a link to official document from Royaume du Maroc Premier Ministre,
670# Ministère de la Modernisation des Secteurs Publics
671#
672# Under Article 1 of Royal Decree No. 455-67 of Act 23 safar 1387 (2 June 1967)
673# concerning the amendment of the legal time, the Ministry of Modernization of
674# Public Sectors announced that the official time in the Kingdom will be
675# advanced 60 minutes from Sunday 31 May 2009 at midnight.
676#
677# http://www.mmsp.gov.ma/francais/Actualites_fr/PDF_Actualites_Fr/HeureEte_FR.pdf
678# http://www.worldtimezone.com/dst_news/dst_news_morocco03.html
679
680# From Steffen Thorsen (2010-04-13):
681# Several news media in Morocco report that the Ministry of Modernization
682# of Public Sectors has announced that Morocco will have DST from
683# 2010-05-02 to 2010-08-08.
684#
685# Example:
686# http://www.lavieeco.com/actualites/4099-le-maroc-passera-a-l-heure-d-ete-gmt1-le-2-mai.html
687# (French)
688# Our page:
689# https://www.timeanddate.com/news/time/morocco-starts-dst-2010.html
690
691# From Dan Abitol (2011-03-30):
692# ...Rules for Africa/Casablanca are the following (24h format)
693# The 3rd April 2011 at 00:00:00, [it] will be 3rd April 01:00:00
694# The 31st July 2011 at 00:59:59, [it] will be 31st July 00:00:00
695# ...Official links of change in morocco
696# The change was broadcast on the FM Radio
697# I ve called ANRT (telecom regulations in Morocco) at
698# +212.537.71.84.00
699# http://www.anrt.net.ma/fr/
700# They said that
701# http://www.map.ma/fr/sections/accueil/l_heure_legale_au_ma/view
702# is the official publication to look at.
703# They said that the decision was already taken.
704#
705# More articles in the press
706# https://www.yabiladi.com/articles/details/5058/secret-l-heure-d-ete-maroc-leve.html
707# http://www.lematin.ma/Actualite/Express/Article.asp?id=148923
708# http://www.lavieeco.com/actualite/Le-Maroc-passe-sur-GMT+1-a-partir-de-dim
709
710# From Petr Machata (2011-03-30):
711# They have it written in English here:
712# http://www.map.ma/eng/sections/home/morocco_to_spring_fo/view
713#
714# It says there that "Morocco will resume its standard time on July 31,
715# 2011 at midnight." Now they don't say whether they mean midnight of
716# wall clock time (i.e. 11pm UTC), but that's what I would assume. It has
717# also been like that in the past.
718
719# From Alexander Krivenyshev (2012-03-09):
720# According to Infomédiaire web site from Morocco (infomediaire.ma),
721# on March 9, 2012, (in French) Heure légale:
722# Le Maroc adopte officiellement l'heure d'été
723# http://www.infomediaire.ma/news/maroc/heure-légale-le-maroc-adopte-officiellement-lheure-dété
724# Governing Council adopted draft decree, that Morocco DST starts on
725# the last Sunday of March (March 25, 2012) and ends on
726# last Sunday of September (September 30, 2012)
727# except the month of Ramadan.
728# or (brief)
729# http://www.worldtimezone.com/dst_news/dst_news_morocco06.html
730
731# From Arthur David Olson (2012-03-10):
732# The infomediaire.ma source indicates that the system is to be in
733# effect every year. It gives 03H00 as the "fall back" time of day;
734# it lacks a "spring forward" time of day; assume 2:00 XXX.
735# Wait on specifying the Ramadan exception for details about
736# start date, start time of day, end date, and end time of day XXX.
737
738# From Christophe Tropamer (2012-03-16):
739# Seen Morocco change again:
740# http://www.le2uminutes.com/actualite.php
741# "...à partir du dernier dimanche d'avril et non fins mars,
742# comme annoncé précédemment."
743
744# From Milamber Space Network (2012-07-17):
745# The official return to GMT is announced by the Moroccan government:
746# http://www.mmsp.gov.ma/fr/actualites.aspx?id=288 [in French]
747#
748# Google translation, lightly edited:
749# Back to the standard time of the Kingdom (GMT)
750# Pursuant to Decree No. 2-12-126 issued on 26 Jumada (I) 1433 (April 18,
751# 2012) and in accordance with the order of Mr. President of the
752# Government No. 3-47-12 issued on 24 Sha'ban (11 July 2012), the Ministry
753# of Public Service and Administration Modernization announces the return
754# of the legal time of the Kingdom (GMT) from Friday, July 20, 2012 until
755# Monday, August 20, 2012.  So the time will be delayed by 60 minutes from
756# 3:00 am Friday, July 20, 2012 and will again be advanced by 60 minutes
757# August 20, 2012 from 2:00 am.
758
759# From Paul Eggert (2013-03-06):
760# Morocco's daylight-saving transitions due to Ramadan seem to be
761# announced a bit in advance.  On 2012-07-11 the Moroccan government
762# announced that year's Ramadan daylight-saving transitions would be
763# 2012-07-20 and 2012-08-20; see
764# http://www.mmsp.gov.ma/fr/actualites.aspx?id=288
765
766# From Andrew Paprocki (2013-07-02):
767# Morocco announced that the year's Ramadan daylight-savings
768# transitions would be 2013-07-07 and 2013-08-10; see:
769# http://www.maroc.ma/en/news/morocco-suspends-daylight-saving-time-july-7-aug10
770
771# From Steffen Thorsen (2013-09-28):
772# Morocco extends DST by one month, on very short notice, just 1 day
773# before it was going to end.  There is a new decree (2.13.781) for
774# this, where DST from now on goes from last Sunday of March at 02:00
775# to last Sunday of October at 03:00, similar to EU rules.  Official
776# source (French):
777# http://www.maroc.gov.ma/fr/actualites/lhoraire-dete-gmt1-maintenu-jusquau-27-octobre-2013
778# Another source (specifying the time for start and end in the decree):
779# http://www.lemag.ma/Heure-d-ete-au-Maroc-jusqu-au-27-octobre_a75620.html
780
781# From Sebastien Willemijns (2014-03-18):
782# http://www.afriquinfos.com/articles/2014/3/18/maroc-heure-dete-avancez-tous-horloges-247891.asp
783
784# From Milamber Space Network (2014-06-05):
785# The Moroccan government has recently announced that the country will return
786# to standard time at 03:00 on Saturday, June 28, 2014 local time....  DST
787# will resume again at 02:00 on Saturday, August 2, 2014....
788# http://www.mmsp.gov.ma/fr/actualites.aspx?id=586
789
790# From Milamber (2015-06-08):
791# (Google Translation) The hour will thus be delayed 60 minutes
792# Sunday, June 14 at 3:00, the ministry said in a statement, adding
793# that the time will be advanced again 60 minutes Sunday, July 19,
794# 2015 at 2:00.  The move comes under 2.12.126 Decree of 26 Jumada I
795# 1433 (18 April 2012) and the decision of the Head of Government of
796# 16 N. 3-29-15 Chaaban 1435 (4 June 2015).
797# Source (french):
798# https://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/
799#
800# From Milamber (2015-06-09):
801# http://www.mmsp.gov.ma/fr/actualites.aspx?id=863
802#
803# From Michael Deckers (2015-06-09):
804# [The gov.ma announcement] would (probably) make the switch on 2015-07-19 go
805# from 03:00 to 04:00 rather than from 02:00 to 03:00, as in the patch....
806# I think the patch is correct and the quoted text is wrong; the text in
807# <https://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/> agrees
808# with the patch.
809
810# From Mohamed Essedik Najd (2018-10-26):
811# Today, a Moroccan government council approved the perpetual addition
812# of 60 minutes to the regular Moroccan timezone.
813# From Matt Johnson (2018-10-28):
814# http://www.sgg.gov.ma/Portals/1/BO/2018/BO_6720-bis_Ar.pdf
815#
816# From Maamar Abdelkader (2018-11-01):
817# We usually move clocks back the previous week end and come back to the +1
818# the week end after....  The government does not announce yet the decision
819# about this temporary change.  But it s 99% sure that it will be the case,
820# as in previous years.  An unofficial survey was done these days, showing
821# that 64% of asked people are ok for moving from +1 to +0 during Ramadan.
822# https://leconomiste.com/article/1035870-enquete-l-economiste-sunergia-64-des-marocains-plebiscitent-le-gmt-pendant-ramadan
823
824# From Naoufal Semlali (2019-04-16):
825# Morocco will be on GMT starting from Sunday, May 5th 2019 at 3am.
826# The switch to GMT+1 will occur on Sunday, June 9th 2019 at 2am....
827# http://fr.le360.ma/societe/voici-la-date-du-retour-a-lheure-legale-au-maroc-188222
828
829# From Semlali Naoufal (2020-04-14):
830# Following the announcement by the Moroccan government, the switch to
831# GMT time will take place on Sunday, April 19, 2020 from 3 a.m. and
832# the return to GMT+1 time will take place on Sunday, May 31, 2020 at 2 a.m....
833# https://maroc-diplomatique.net/maroc-le-retour-a-lheure-gmt-est-prevu-dimanche-prochain/
834# http://aujourdhui.ma/actualite/gmt1-retour-a-lheure-normale-dimanche-prochain-1
835#
836# From Milamber (2020-05-31)
837# In Morocco (where I live), the end of Ramadan (Arabic month) is followed by
838# the Eid al-Fitr, and concretely it's 1 or 2 day offs for the people (with
839# traditional visiting of family, big lunches/dinners, etc.).  So for this
840# year the astronomical calculations don't include the following 2 days off in
841# the calc.  These 2 days fall in a Sunday/Monday, so it's not acceptable by
842# people to have a time shift during these 2 days off.  Perhaps you can modify
843# the (predicted) rules for next years: if the end of Ramadan is a (probable)
844# Friday or Saturday (and so the 2 days off are on a weekend), the next time
845# shift will be the next weekend.
846#
847# From Milamber (2021-03-31, 2022-03-10):
848# https://www.mmsp.gov.ma/fr/actualites.aspx?id=2076
849# https://www.ecoactu.ma/horaires-administration-ramadan-gmtheure-gmt-a-partir-de-dimanche-27-mars/
850#
851# From Milamber (2023-03-14, 2023-03-15):
852# The return to legal GMT time will take place this Sunday, March 19 at 3 a.m.
853# ... the return to GMT+1 will be made on Sunday April 23, 2023 at 2 a.m.
854# https://www.mmsp.gov.ma/fr/actualites/passage-à-l%E2%80%99heure-gmt-à-partir-du-dimanche-19-mars-2023
855#
856# From Paul Eggert (2023-03-14):
857# For now, guess that in the future Morocco will fall back at 03:00
858# the last Sunday before Ramadan, and spring forward at 02:00 the
859# first Sunday after one day after Ramadan.  To implement this,
860# transition dates and times for 2019 through 2087 were determined by
861# running the following program under GNU Emacs 28.2.  (This algorithm
862# also produces the correct transition dates for 2016 through 2018,
863# though the times differ due to Morocco's time zone change in 2018.)
864# (let ((islamic-year 1440))
865#   (require 'cal-islam)
866#   (while (< islamic-year 1511)
867#     (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
868#           (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
869#           (sunday 0))
870#       (while (/= sunday (mod (setq a (1- a)) 7)))
871#       (while (/= sunday (mod b 7))
872#         (setq b (1+ b)))
873#       (setq a (calendar-gregorian-from-absolute a))
874#       (setq b (calendar-gregorian-from-absolute b))
875#       (insert
876#        (format
877#         (concat "Rule\tMorocco\t%d\tonly\t-\t%s\t%2d\t 3:00\t-1:00\t-\n"
878#                 "Rule\tMorocco\t%d\tonly\t-\t%s\t%2d\t 2:00\t0\t-\n")
879#         (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
880#         (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
881#     (setq islamic-year (+ 1 islamic-year))))
882
883# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
884Rule	Morocco	1939	only	-	Sep	12	 0:00	1:00	-
885Rule	Morocco	1939	only	-	Nov	19	 0:00	0	-
886Rule	Morocco	1940	only	-	Feb	25	 0:00	1:00	-
887Rule	Morocco	1945	only	-	Nov	18	 0:00	0	-
888Rule	Morocco	1950	only	-	Jun	11	 0:00	1:00	-
889Rule	Morocco	1950	only	-	Oct	29	 0:00	0	-
890Rule	Morocco	1967	only	-	Jun	 3	12:00	1:00	-
891Rule	Morocco	1967	only	-	Oct	 1	 0:00	0	-
892Rule	Morocco	1974	only	-	Jun	24	 0:00	1:00	-
893Rule	Morocco	1974	only	-	Sep	 1	 0:00	0	-
894Rule	Morocco	1976	1977	-	May	 1	 0:00	1:00	-
895Rule	Morocco	1976	only	-	Aug	 1	 0:00	0	-
896Rule	Morocco	1977	only	-	Sep	28	 0:00	0	-
897Rule	Morocco	1978	only	-	Jun	 1	 0:00	1:00	-
898Rule	Morocco	1978	only	-	Aug	 4	 0:00	0	-
899Rule	Morocco	2008	only	-	Jun	 1	 0:00	1:00	-
900Rule	Morocco	2008	only	-	Sep	 1	 0:00	0	-
901Rule	Morocco	2009	only	-	Jun	 1	 0:00	1:00	-
902Rule	Morocco	2009	only	-	Aug	21	 0:00	0	-
903Rule	Morocco	2010	only	-	May	 2	 0:00	1:00	-
904Rule	Morocco	2010	only	-	Aug	 8	 0:00	0	-
905Rule	Morocco	2011	only	-	Apr	 3	 0:00	1:00	-
906Rule	Morocco	2011	only	-	Jul	31	 0:00	0	-
907Rule	Morocco	2012	2013	-	Apr	lastSun	 2:00	1:00	-
908Rule	Morocco	2012	only	-	Jul	20	 3:00	0	-
909Rule	Morocco	2012	only	-	Aug	20	 2:00	1:00	-
910Rule	Morocco	2012	only	-	Sep	30	 3:00	0	-
911Rule	Morocco	2013	only	-	Jul	 7	 3:00	0	-
912Rule	Morocco	2013	only	-	Aug	10	 2:00	1:00	-
913Rule	Morocco	2013	2018	-	Oct	lastSun	 3:00	0	-
914Rule	Morocco	2014	2018	-	Mar	lastSun	 2:00	1:00	-
915Rule	Morocco	2014	only	-	Jun	28	 3:00	0	-
916Rule	Morocco	2014	only	-	Aug	 2	 2:00	1:00	-
917Rule	Morocco	2015	only	-	Jun	14	 3:00	0	-
918Rule	Morocco	2015	only	-	Jul	19	 2:00	1:00	-
919Rule	Morocco	2016	only	-	Jun	 5	 3:00	0	-
920Rule	Morocco	2016	only	-	Jul	10	 2:00	1:00	-
921Rule	Morocco	2017	only	-	May	21	 3:00	0	-
922Rule	Morocco	2017	only	-	Jul	 2	 2:00	1:00	-
923Rule	Morocco	2018	only	-	May	13	 3:00	0	-
924Rule	Morocco	2018	only	-	Jun	17	 2:00	1:00	-
925Rule	Morocco	2019	only	-	May	 5	 3:00	-1:00	-
926Rule	Morocco	2019	only	-	Jun	 9	 2:00	0	-
927Rule	Morocco	2020	only	-	Apr	19	 3:00	-1:00	-
928Rule	Morocco	2020	only	-	May	31	 2:00	0	-
929Rule	Morocco	2021	only	-	Apr	11	 3:00	-1:00	-
930Rule	Morocco	2021	only	-	May	16	 2:00	0	-
931Rule	Morocco	2022	only	-	Mar	27	 3:00	-1:00	-
932Rule	Morocco	2022	only	-	May	 8	 2:00	0	-
933Rule	Morocco	2023	only	-	Mar	19	 3:00	-1:00	-
934Rule	Morocco	2023	only	-	Apr	23	 2:00	0	-
935Rule	Morocco	2024	only	-	Mar	10	 3:00	-1:00	-
936Rule	Morocco	2024	only	-	Apr	14	 2:00	0	-
937Rule	Morocco	2025	only	-	Feb	23	 3:00	-1:00	-
938Rule	Morocco	2025	only	-	Apr	 6	 2:00	0	-
939Rule	Morocco	2026	only	-	Feb	15	 3:00	-1:00	-
940Rule	Morocco	2026	only	-	Mar	22	 2:00	0	-
941Rule	Morocco	2027	only	-	Feb	 7	 3:00	-1:00	-
942Rule	Morocco	2027	only	-	Mar	14	 2:00	0	-
943Rule	Morocco	2028	only	-	Jan	23	 3:00	-1:00	-
944Rule	Morocco	2028	only	-	Mar	 5	 2:00	0	-
945Rule	Morocco	2029	only	-	Jan	14	 3:00	-1:00	-
946Rule	Morocco	2029	only	-	Feb	18	 2:00	0	-
947Rule	Morocco	2029	only	-	Dec	30	 3:00	-1:00	-
948Rule	Morocco	2030	only	-	Feb	10	 2:00	0	-
949Rule	Morocco	2030	only	-	Dec	22	 3:00	-1:00	-
950Rule	Morocco	2031	only	-	Jan	26	 2:00	0	-
951Rule	Morocco	2031	only	-	Dec	14	 3:00	-1:00	-
952Rule	Morocco	2032	only	-	Jan	18	 2:00	0	-
953Rule	Morocco	2032	only	-	Nov	28	 3:00	-1:00	-
954Rule	Morocco	2033	only	-	Jan	 9	 2:00	0	-
955Rule	Morocco	2033	only	-	Nov	20	 3:00	-1:00	-
956Rule	Morocco	2033	only	-	Dec	25	 2:00	0	-
957Rule	Morocco	2034	only	-	Nov	 5	 3:00	-1:00	-
958Rule	Morocco	2034	only	-	Dec	17	 2:00	0	-
959Rule	Morocco	2035	only	-	Oct	28	 3:00	-1:00	-
960Rule	Morocco	2035	only	-	Dec	 9	 2:00	0	-
961Rule	Morocco	2036	only	-	Oct	19	 3:00	-1:00	-
962Rule	Morocco	2036	only	-	Nov	23	 2:00	0	-
963Rule	Morocco	2037	only	-	Oct	 4	 3:00	-1:00	-
964Rule	Morocco	2037	only	-	Nov	15	 2:00	0	-
965Rule	Morocco	2038	only	-	Sep	26	 3:00	-1:00	-
966Rule	Morocco	2038	only	-	Oct	31	 2:00	0	-
967Rule	Morocco	2039	only	-	Sep	18	 3:00	-1:00	-
968Rule	Morocco	2039	only	-	Oct	23	 2:00	0	-
969Rule	Morocco	2040	only	-	Sep	 2	 3:00	-1:00	-
970Rule	Morocco	2040	only	-	Oct	14	 2:00	0	-
971Rule	Morocco	2041	only	-	Aug	25	 3:00	-1:00	-
972Rule	Morocco	2041	only	-	Sep	29	 2:00	0	-
973Rule	Morocco	2042	only	-	Aug	10	 3:00	-1:00	-
974Rule	Morocco	2042	only	-	Sep	21	 2:00	0	-
975Rule	Morocco	2043	only	-	Aug	 2	 3:00	-1:00	-
976Rule	Morocco	2043	only	-	Sep	13	 2:00	0	-
977Rule	Morocco	2044	only	-	Jul	24	 3:00	-1:00	-
978Rule	Morocco	2044	only	-	Aug	28	 2:00	0	-
979Rule	Morocco	2045	only	-	Jul	 9	 3:00	-1:00	-
980Rule	Morocco	2045	only	-	Aug	20	 2:00	0	-
981Rule	Morocco	2046	only	-	Jul	 1	 3:00	-1:00	-
982Rule	Morocco	2046	only	-	Aug	 5	 2:00	0	-
983Rule	Morocco	2047	only	-	Jun	23	 3:00	-1:00	-
984Rule	Morocco	2047	only	-	Jul	28	 2:00	0	-
985Rule	Morocco	2048	only	-	Jun	 7	 3:00	-1:00	-
986Rule	Morocco	2048	only	-	Jul	19	 2:00	0	-
987Rule	Morocco	2049	only	-	May	30	 3:00	-1:00	-
988Rule	Morocco	2049	only	-	Jul	 4	 2:00	0	-
989Rule	Morocco	2050	only	-	May	15	 3:00	-1:00	-
990Rule	Morocco	2050	only	-	Jun	26	 2:00	0	-
991Rule	Morocco	2051	only	-	May	 7	 3:00	-1:00	-
992Rule	Morocco	2051	only	-	Jun	18	 2:00	0	-
993Rule	Morocco	2052	only	-	Apr	28	 3:00	-1:00	-
994Rule	Morocco	2052	only	-	Jun	 2	 2:00	0	-
995Rule	Morocco	2053	only	-	Apr	13	 3:00	-1:00	-
996Rule	Morocco	2053	only	-	May	25	 2:00	0	-
997Rule	Morocco	2054	only	-	Apr	 5	 3:00	-1:00	-
998Rule	Morocco	2054	only	-	May	10	 2:00	0	-
999Rule	Morocco	2055	only	-	Mar	28	 3:00	-1:00	-
1000Rule	Morocco	2055	only	-	May	 2	 2:00	0	-
1001Rule	Morocco	2056	only	-	Mar	12	 3:00	-1:00	-
1002Rule	Morocco	2056	only	-	Apr	23	 2:00	0	-
1003Rule	Morocco	2057	only	-	Mar	 4	 3:00	-1:00	-
1004Rule	Morocco	2057	only	-	Apr	 8	 2:00	0	-
1005Rule	Morocco	2058	only	-	Feb	17	 3:00	-1:00	-
1006Rule	Morocco	2058	only	-	Mar	31	 2:00	0	-
1007Rule	Morocco	2059	only	-	Feb	 9	 3:00	-1:00	-
1008Rule	Morocco	2059	only	-	Mar	23	 2:00	0	-
1009Rule	Morocco	2060	only	-	Feb	 1	 3:00	-1:00	-
1010Rule	Morocco	2060	only	-	Mar	 7	 2:00	0	-
1011Rule	Morocco	2061	only	-	Jan	16	 3:00	-1:00	-
1012Rule	Morocco	2061	only	-	Feb	27	 2:00	0	-
1013Rule	Morocco	2062	only	-	Jan	 8	 3:00	-1:00	-
1014Rule	Morocco	2062	only	-	Feb	12	 2:00	0	-
1015Rule	Morocco	2062	only	-	Dec	31	 3:00	-1:00	-
1016Rule	Morocco	2063	only	-	Feb	 4	 2:00	0	-
1017Rule	Morocco	2063	only	-	Dec	16	 3:00	-1:00	-
1018Rule	Morocco	2064	only	-	Jan	27	 2:00	0	-
1019Rule	Morocco	2064	only	-	Dec	 7	 3:00	-1:00	-
1020Rule	Morocco	2065	only	-	Jan	11	 2:00	0	-
1021Rule	Morocco	2065	only	-	Nov	22	 3:00	-1:00	-
1022Rule	Morocco	2066	only	-	Jan	 3	 2:00	0	-
1023Rule	Morocco	2066	only	-	Nov	14	 3:00	-1:00	-
1024Rule	Morocco	2066	only	-	Dec	26	 2:00	0	-
1025Rule	Morocco	2067	only	-	Nov	 6	 3:00	-1:00	-
1026Rule	Morocco	2067	only	-	Dec	11	 2:00	0	-
1027Rule	Morocco	2068	only	-	Oct	21	 3:00	-1:00	-
1028Rule	Morocco	2068	only	-	Dec	 2	 2:00	0	-
1029Rule	Morocco	2069	only	-	Oct	13	 3:00	-1:00	-
1030Rule	Morocco	2069	only	-	Nov	17	 2:00	0	-
1031Rule	Morocco	2070	only	-	Oct	 5	 3:00	-1:00	-
1032Rule	Morocco	2070	only	-	Nov	 9	 2:00	0	-
1033Rule	Morocco	2071	only	-	Sep	20	 3:00	-1:00	-
1034Rule	Morocco	2071	only	-	Nov	 1	 2:00	0	-
1035Rule	Morocco	2072	only	-	Sep	11	 3:00	-1:00	-
1036Rule	Morocco	2072	only	-	Oct	16	 2:00	0	-
1037Rule	Morocco	2073	only	-	Aug	27	 3:00	-1:00	-
1038Rule	Morocco	2073	only	-	Oct	 8	 2:00	0	-
1039Rule	Morocco	2074	only	-	Aug	19	 3:00	-1:00	-
1040Rule	Morocco	2074	only	-	Sep	30	 2:00	0	-
1041Rule	Morocco	2075	only	-	Aug	11	 3:00	-1:00	-
1042Rule	Morocco	2075	only	-	Sep	15	 2:00	0	-
1043Rule	Morocco	2076	only	-	Jul	26	 3:00	-1:00	-
1044Rule	Morocco	2076	only	-	Sep	 6	 2:00	0	-
1045Rule	Morocco	2077	only	-	Jul	18	 3:00	-1:00	-
1046Rule	Morocco	2077	only	-	Aug	22	 2:00	0	-
1047Rule	Morocco	2078	only	-	Jul	10	 3:00	-1:00	-
1048Rule	Morocco	2078	only	-	Aug	14	 2:00	0	-
1049Rule	Morocco	2079	only	-	Jun	25	 3:00	-1:00	-
1050Rule	Morocco	2079	only	-	Aug	 6	 2:00	0	-
1051Rule	Morocco	2080	only	-	Jun	16	 3:00	-1:00	-
1052Rule	Morocco	2080	only	-	Jul	21	 2:00	0	-
1053Rule	Morocco	2081	only	-	Jun	 1	 3:00	-1:00	-
1054Rule	Morocco	2081	only	-	Jul	13	 2:00	0	-
1055Rule	Morocco	2082	only	-	May	24	 3:00	-1:00	-
1056Rule	Morocco	2082	only	-	Jun	28	 2:00	0	-
1057Rule	Morocco	2083	only	-	May	16	 3:00	-1:00	-
1058Rule	Morocco	2083	only	-	Jun	20	 2:00	0	-
1059Rule	Morocco	2084	only	-	Apr	30	 3:00	-1:00	-
1060Rule	Morocco	2084	only	-	Jun	11	 2:00	0	-
1061Rule	Morocco	2085	only	-	Apr	22	 3:00	-1:00	-
1062Rule	Morocco	2085	only	-	May	27	 2:00	0	-
1063Rule	Morocco	2086	only	-	Apr	14	 3:00	-1:00	-
1064Rule	Morocco	2086	only	-	May	19	 2:00	0	-
1065Rule	Morocco	2087	only	-	Mar	30	 3:00	-1:00	-
1066Rule	Morocco	2087	only	-	May	11	 2:00	0	-
1067# For dates after the somewhat-arbitrary cutoff of 2087, assume that
1068# Morocco will no longer observe DST.  At some point this table will
1069# need to be extended, though quite possibly Morocco will change the
1070# rules first.
1071
1072# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
1073Zone Africa/Casablanca	-0:30:20 -	LMT	1913 Oct 26
1074			 0:00	Morocco	+00/+01	1984 Mar 16
1075			 1:00	-	+01	1986
1076			 0:00	Morocco	+00/+01	2018 Oct 28  3:00
1077			 1:00	Morocco	+01/+00
1078
1079# Western Sahara
1080#
1081# From Gwillim Law (2013-10-22):
1082# A correspondent who is usually well informed about time zone matters
1083# ... says that Western Sahara observes daylight saving time, just as
1084# Morocco does.
1085#
1086# From Paul Eggert (2013-10-23):
1087# Assume that this has been true since Western Sahara switched to GMT,
1088# since most of it was then controlled by Morocco.
1089
1090Zone Africa/El_Aaiun	-0:52:48 -	LMT	1934 Jan # El Aaiún
1091			-1:00	-	-01	1976 Apr 14
1092			 0:00	Morocco	+00/+01	2018 Oct 28  3:00
1093			 1:00	Morocco	+01/+00
1094
1095# Botswana
1096# Burundi
1097# Democratic Republic of the Congo (eastern)
1098# Malawi
1099# Mozambique
1100# Rwanda
1101# Zambia
1102# Zimbabwe
1103#
1104# Shanks gives 1903-03-01 for the transition to CAT.
1105# Perhaps the 1911-05-26 Portuguese decree
1106# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
1107# merely made it official?
1108#
1109# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
1110Zone	Africa/Maputo	2:10:20 -	LMT	1903 Mar
1111			2:00	-	CAT
1112
1113# Namibia
1114
1115# From Arthur David Olson (2017-08-09):
1116# The text of the "Namibia Time Act, 1994" is available online at
1117# www.lac.org.na/laws/1994/811.pdf
1118# and includes this nugget:
1119# Notwithstanding the provisions of subsection (2) of section 1, the
1120# first winter period after the commencement of this Act shall
1121# commence at OOhOO on Monday 21 March 1994 and shall end at 02h00 on
1122# Sunday 4 September 1994.
1123
1124# From Michael Deckers (2017-04-06):
1125# ... both summer and winter time are called "standard"
1126# (which differs from the use in Ireland) ...
1127
1128# From Petronella Sibeene (2007-03-30):
1129# http://allafrica.com/stories/200703300178.html
1130# While the entire country changes its time, Katima Mulilo and other
1131# settlements in Caprivi unofficially will not because the sun there
1132# rises and sets earlier compared to other regions.  Chief of
1133# Forecasting Riaan van Zyl explained that the far eastern parts of
1134# the country are close to 40 minutes earlier in sunrise than the rest
1135# of the country.
1136#
1137# From Paul Eggert (2017-02-22):
1138# Although the Zambezi Region (formerly known as Caprivi) informally
1139# observes Botswana time, we have no details about historical practice.
1140# In the meantime people there can use Africa/Gaborone.
1141# See: Immanuel S. The Namibian. 2017-02-23.
1142# https://www.namibian.com.na/51480/read/Time-change-divides-lawmakers
1143
1144# From Steffen Thorsen (2017-08-09):
1145# Namibia is going to change their time zone to what is now their DST:
1146# https://www.newera.com.na/2017/02/23/namibias-winter-time-might-be-repealed/
1147# This video is from the government decision:
1148# https://www.nbc.na/news/na-passes-namibia-time-bill-repealing-1994-namibia-time-act.8665
1149# We have made the assumption so far that they will change their time zone at
1150# the same time they would normally start DST, the first Sunday in September:
1151# https://www.timeanddate.com/news/time/namibia-new-time-zone.html
1152
1153# From Paul Eggert (2017-04-09):
1154# Before the change, summer and winter time were both standard time legally.
1155# However in common parlance, winter time was considered to be DST.  See, e.g.:
1156# http://www.nbc.na/news/namibias-winter-time-could-be-scrapped.2706
1157# https://zone.my.na/news/times-are-changing-in-namibia
1158# https://www.newera.com.na/2017/02/23/namibias-winter-time-might-be-repealed/
1159# Use plain "WAT" and "CAT" for the time zone abbreviations, to be compatible
1160# with Namibia's neighbors.
1161
1162# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
1163# Vanguard section, for zic and other parsers that support negative DST.
1164Rule	Namibia	1994	only	-	Mar	21	0:00	-1:00	WAT
1165Rule	Namibia	1994	2017	-	Sep	Sun>=1	2:00	0	CAT
1166Rule	Namibia	1995	2017	-	Apr	Sun>=1	2:00	-1:00	WAT
1167# Rearguard section, for parsers lacking negative DST; see ziguard.awk.
1168#Rule	Namibia	1994	only	-	Mar	21	0:00	0	WAT
1169#Rule	Namibia	1994	2017	-	Sep	Sun>=1	2:00	1:00	CAT
1170#Rule	Namibia	1995	2017	-	Apr	Sun>=1	2:00	0	WAT
1171# End of rearguard section.
1172
1173# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
1174Zone	Africa/Windhoek	1:08:24 -	LMT	1892 Feb 8
1175			1:30	-	+0130	1903 Mar
1176			2:00	-	SAST	1942 Sep 20  2:00
1177			2:00	1:00	SAST	1943 Mar 21  2:00
1178			2:00	-	SAST	1990 Mar 21 # independence
1179# Vanguard section, for zic and other parsers that support negative DST.
1180			2:00	Namibia	%s
1181# Rearguard section, for parsers lacking negative DST; see ziguard.awk.
1182#			2:00	-	CAT	1994 Mar 21  0:00
1183# From Paul Eggert (2017-04-07):
1184# The official date of the 2017 rule change was 2017-10-24.  See:
1185# http://www.lac.org.na/laws/annoSTAT/Namibian%20Time%20Act%209%20of%202017.pdf
1186#			1:00	Namibia	%s	2017 Oct 24
1187#			2:00	-	CAT
1188# End of rearguard section.
1189
1190
1191# Angola
1192# Benin
1193# Cameroon
1194# Central African Republic
1195# Democratic Republic of the Congo (western)
1196# Republic of the Congo
1197# Equatorial Guinea
1198# Gabon
1199# Niger
1200# Nigeria
1201
1202# From P Chan (2020-12-03):
1203# GMT was adopted as the standard time of Lagos on 1905-07-01.
1204# Lagos Weekly Record, 1905-06-24, p 3
1205# http://ddsnext.crl.edu/titles/31558#?c=0&m=668&s=0&cv=2&r=0&xywh=1446,5221,1931,1235
1206# says "It is officially notified that on and after the 1st of July 1905
1207# Greenwich Mean Solar Time will be adopted throughout the Colony and
1208# Protectorate, and that it will be necessary to put all clocks 13 minutes and
1209# 35 seconds back, recording local mean time."
1210#
1211# It seemed that Lagos returned to LMT on 1908-07-01.
1212# [The Lagos Standard], 1908-07-01, p 5
1213# http://ddsnext.crl.edu/titles/31556#?c=0&m=78&s=0&cv=4&r=0&xywh=-92,3590,3944,2523
1214# says "Scarcely have the people become accustomed to this new time, when
1215# another official notice has now appeared announcing that from and after the
1216# 1st July next, return will be made to local mean time."
1217#
1218# From P Chan (2020-11-27):
1219# On 1914-01-01, standard time of GMT+0:30 was adopted for the unified Nigeria.
1220# Colonial Reports - Annual. No. 878. Nigeria. Report for 1914. (April 1916),
1221# p 27
1222# https://libsysdigi.library.illinois.edu/ilharvest/Africana/Books2011-05/3064634/3064634_1914/3064634_1914_opt.pdf#page=27
1223# "On January 1st [1914], a universal standard time for Nigeria was adopted,
1224# viz., half an hour fast on Greenwich mean time, corresponding to the meridian
1225# 7° 30' E. long."
1226# Lloyd's Register of Shipping (1915) says "Hitherto the time observed in Lagos
1227# was the local mean time. On 1st January, 1914, standard time for the whole of
1228# Nigeria was introduced ... Lagos time has been advanced about 16 minutes
1229# accordingly."
1230#
1231# In 1919, standard time was changed to GMT+1.
1232# Interpretation Ordinance (Cap 2)
1233# The Laws of Nigeria, Containing the Ordinances of Nigeria, in Force on the
1234# 1st Day of January, 1923, Vol.I [p 16]
1235# https://books.google.com/books?id=BOMrAQAAMAAJ&pg=PA16
1236# "The expression 'Standard time' means standard time as used in Nigeria:
1237# namely, 60 minutes in advance of Greenwich mean time.  (As amended by 18 of
1238# 1919, s. 2.)"
1239# From Tim Parenti (2020-12-10):
1240# The Lagos Weekly Record, 1919-09-20, p 3 details discussion on the first
1241# reading of this Bill by the Legislative Council of the Colony of Nigeria on
1242# Thursday 1919-08-28:
1243# http://ddsnext.crl.edu/titles/31558?terms&item_id=303484#?m=1118&c=1&s=0&cv=2&r=0&xywh=1261,3408,2994,1915
1244# "The proposal is that the Globe should be divided into twelve zones East and
1245# West of Greenwich, of one hour each, Nigeria falling into the zone with a
1246# standard of one hour fast on Greenwich Mean Time.  Nigeria standard time is
1247# now 30 minutes in advance of Greenwich Mean Time ... according to the new
1248# proposal, standard time will be advanced another 30 minutes".  It was further
1249# proposed that the firing of the time guns likewise be adjusted by 30 minutes
1250# to compensate.
1251# From Tim Parenti (2020-12-10), per P Chan (2020-12-11):
1252# The text of Ordinance 18 of 1919, published in Nigeria Gazette, Vol 6, No 52,
1253# shows that the change was assented to the following day and took effect "on
1254# the 1st day of September, 1919."
1255# Nigeria Gazette and Supplements 1919 Jan-Dec, Reference: 73266B-40,
1256# img 245-246
1257# https://microform.digital/boa/collections/77/volumes/539/nigeria-lagos-1887-1919
1258
1259# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
1260Zone	Africa/Lagos	0:13:35 -	LMT	1905 Jul  1
1261			0:00	-	GMT	1908 Jul  1
1262			0:13:35	-	LMT	1914 Jan  1
1263			0:30	-	+0030	1919 Sep  1
1264			1:00	-	WAT
1265
1266# São Tomé and Príncipe
1267
1268# See Europe/Lisbon for info about the 1912 transition.
1269
1270# From Steffen Thorsen (2018-01-08):
1271# Multiple sources tell that São Tomé changed from UTC to UTC+1 as
1272# they entered the year 2018.
1273# From Michael Deckers (2018-01-08):
1274# the switch is from 01:00 to 02:00 ... [Decree No. 25/2017]
1275# http://www.mnec.gov.st/index.php/publicacoes/documentos/file/90-decreto-lei-n-25-2017
1276
1277# From Vadim Nasardinov (2018-12-29):
1278# São Tomé and Príncipe is about to do the following on Jan 1, 2019:
1279# https://www.stp-press.st/2018/12/05/governo-jesus-ja-decidiu-repor-hora-legal-sao-tomense/
1280#
1281# From Michael Deckers (2018-12-30):
1282# https://www.legis-palop.org/download.jsp?idFile=102818
1283# ... [The legal time of the country, which coincides with universal
1284# coordinated time, will be reinstituted at 2 o'clock on day 1 of January, 2019.]
1285
1286Zone	Africa/Sao_Tome	 0:26:56 -	LMT	1884
1287		#STDOFF	-0:36:44.68
1288			-0:36:45 -	LMT	1912 Jan  1 00:00u # Lisbon MT
1289			 0:00	-	GMT	2018 Jan  1 01:00
1290			 1:00	-	WAT	2019 Jan  1 02:00
1291			 0:00	-	GMT
1292
1293# Eswatini (Swaziland)
1294# Lesotho
1295# South Africa
1296
1297# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
1298Rule	SA	1942	1943	-	Sep	Sun>=15	2:00	1:00	-
1299Rule	SA	1943	1944	-	Mar	Sun>=15	2:00	0	-
1300# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
1301Zone Africa/Johannesburg 1:52:00 -	LMT	1892 Feb 8
1302			1:30	-	SAST	1903 Mar
1303			2:00	SA	SAST
1304#
1305# Marion and Prince Edward Is
1306# scientific station since 1947
1307# no information
1308
1309# Sudan
1310
1311# From <http://www.sunanews.net/sn13jane.html>
1312# Sudan News Agency (2000-01-13),
1313# also reported by Michaël De Beukelaer-Dossche via Steffen Thorsen:
1314# Clocks will be moved ahead for 60 minutes all over the Sudan as of noon
1315# Saturday....  This was announced Thursday by Caretaker State Minister for
1316# Manpower Abdul-Rahman Nur-Eddin.
1317
1318# From Ahmed Atyya, National Telecommunications Corp. (NTC), Sudan (2017-10-17):
1319# ... the Republic of Sudan is going to change the time zone from (GMT+3:00)
1320# to (GMT+ 2:00) starting from Wednesday 1 November 2017.
1321#
1322# From Paul Eggert (2017-10-18):
1323# A scanned copy (in Arabic) of Cabinet Resolution No. 352 for the
1324# year 2017 can be found as an attachment in email today from Yahia
1325# Abdalla of NTC, archived at:
1326# https://mm.icann.org/pipermail/tz/2017-October/025333.html
1327
1328# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
1329Rule	Sudan	1970	only	-	May	 1	0:00	1:00	S
1330Rule	Sudan	1970	1985	-	Oct	15	0:00	0	-
1331Rule	Sudan	1971	only	-	Apr	30	0:00	1:00	S
1332Rule	Sudan	1972	1985	-	Apr	lastSun	0:00	1:00	S
1333# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
1334Zone	Africa/Khartoum	2:10:08 -	LMT	1931
1335			2:00	Sudan	CA%sT	2000 Jan 15 12:00
1336			3:00	-	EAT	2017 Nov  1
1337			2:00	-	CAT
1338
1339# South Sudan
1340
1341# From Steffen Thorsen (2021-01-18):
1342# "South Sudan will change its time zone by setting the clock back 1
1343# hour on February 1, 2021...."
1344# from https://eyeradio.org/south-sudan-adopts-new-time-zone-makuei/
1345
1346# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
1347Zone	Africa/Juba	2:06:28 -	LMT	1931
1348			2:00	Sudan	CA%sT	2000 Jan 15 12:00
1349			3:00	-	EAT	2021 Feb  1 00:00
1350			2:00	-	CAT
1351
1352# Tunisia
1353
1354# From Gwillim Law (2005-04-30):
1355# My correspondent, Risto Nykänen, has alerted me to another adoption of DST,
1356# this time in Tunisia.  According to Yahoo France News
1357# <http://fr.news.yahoo.com/050426/5/4dumk.html>, in a story attributed to AP
1358# and dated 2005-04-26, "Tunisia has decided to advance its official time by
1359# one hour, starting on Sunday, May 1.  Henceforth, Tunisian time will be
1360# UTC+2 instead of UTC+1.  The change will take place at 23:00 UTC next
1361# Saturday."  (My translation)
1362#
1363# From Oscar van Vlijmen (2005-05-02):
1364# La Presse, the first national daily newspaper ...
1365# http://www.lapresse.tn/archives/archives280405/actualites/lheure.html
1366# ... DST for 2005: on: Sun May 1 0h standard time, off: Fri Sept. 30,
1367# 1h standard time.
1368#
1369# From Atef Loukil (2006-03-28):
1370# The daylight saving time will be the same each year:
1371# Beginning      : the last Sunday of March at 02:00
1372# Ending         : the last Sunday of October at 03:00 ...
1373# http://www.tap.info.tn/en/index.php?option=com_content&task=view&id=1188&Itemid=50
1374
1375# From Steffen Thorsen (2009-03-16):
1376# According to several news sources, Tunisia will not observe DST this year.
1377# (Arabic)
1378# http://www.elbashayer.com/?page=viewn&nid=42546
1379# https://www.babnet.net/kiwidetail-15295.asp
1380#
1381# We have also confirmed this with the US embassy in Tunisia.
1382# We have a wrap-up about this on the following page:
1383# https://www.timeanddate.com/news/time/tunisia-cancels-dst-2009.html
1384
1385# From Alexander Krivenyshev (2009-03-17):
1386# Here is a link to Tunis Afrique Presse News Agency
1387#
1388# Standard time to be kept the whole year long (tap.info.tn):
1389#
1390# (in English)
1391# http://www.tap.info.tn/en/index.php?option=com_content&task=view&id=26813&Itemid=157
1392#
1393# (in Arabic)
1394# http://www.tap.info.tn/ar/index.php?option=com_content&task=view&id=61240&Itemid=1
1395
1396# From Arthur David Olson (2009-03-18):
1397# The Tunis Afrique Presse News Agency notice contains this: "This measure is
1398# due to the fact that the fasting month of Ramadan coincides with the period
1399# concerned by summer time.  Therefore, the standard time will be kept
1400# unchanged the whole year long."  So foregoing DST seems to be an exception
1401# (albeit one that may be repeated in the future).
1402
1403# From Alexander Krivenyshev (2010-03-27):
1404# According to some news reports Tunis confirmed not to use DST in 2010
1405#
1406# (translation):
1407# "The Tunisian government has decided to abandon DST, which was scheduled on
1408# Sunday...
1409# Tunisian authorities had suspended the DST for the first time last year also
1410# coincided with the month of Ramadan..."
1411#
1412# (in Arabic)
1413# http://www.moheet.com/show_news.aspx?nid=358861&pg=1
1414# http://www.almadenahnews.com/newss/news.php?c=118&id=38036
1415# http://www.worldtimezone.com/dst_news/dst_news_tunis02.html
1416
1417# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
1418Rule	Tunisia	1939	only	-	Apr	15	23:00s	1:00	S
1419Rule	Tunisia	1939	only	-	Nov	18	23:00s	0	-
1420Rule	Tunisia	1940	only	-	Feb	25	23:00s	1:00	S
1421Rule	Tunisia	1941	only	-	Oct	 6	 0:00	0	-
1422Rule	Tunisia	1942	only	-	Mar	 9	 0:00	1:00	S
1423Rule	Tunisia	1942	only	-	Nov	 2	 3:00	0	-
1424Rule	Tunisia	1943	only	-	Mar	29	 2:00	1:00	S
1425Rule	Tunisia	1943	only	-	Apr	17	 2:00	0	-
1426Rule	Tunisia	1943	only	-	Apr	25	 2:00	1:00	S
1427Rule	Tunisia	1943	only	-	Oct	 4	 2:00	0	-
1428Rule	Tunisia	1944	1945	-	Apr	Mon>=1	 2:00	1:00	S
1429Rule	Tunisia	1944	only	-	Oct	 8	 0:00	0	-
1430Rule	Tunisia	1945	only	-	Sep	16	 0:00	0	-
1431Rule	Tunisia	1977	only	-	Apr	30	 0:00s	1:00	S
1432Rule	Tunisia	1977	only	-	Sep	24	 0:00s	0	-
1433Rule	Tunisia	1978	only	-	May	 1	 0:00s	1:00	S
1434Rule	Tunisia	1978	only	-	Oct	 1	 0:00s	0	-
1435Rule	Tunisia	1988	only	-	Jun	 1	 0:00s	1:00	S
1436Rule	Tunisia	1988	1990	-	Sep	lastSun	 0:00s	0	-
1437Rule	Tunisia	1989	only	-	Mar	26	 0:00s	1:00	S
1438Rule	Tunisia	1990	only	-	May	 1	 0:00s	1:00	S
1439Rule	Tunisia	2005	only	-	May	 1	 0:00s	1:00	S
1440Rule	Tunisia	2005	only	-	Sep	30	 1:00s	0	-
1441Rule	Tunisia	2006	2008	-	Mar	lastSun	 2:00s	1:00	S
1442Rule	Tunisia	2006	2008	-	Oct	lastSun	 2:00s	0	-
1443
1444# See Europe/Paris commentary for PMT-related transitions.
1445# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
1446Zone	Africa/Tunis	0:40:44 -	LMT	1881 May 12
1447			0:09:21	-	PMT	1911 Mar 11 # Paris Mean Time
1448			1:00	Tunisia	CE%sT
1449