africa revision 1.1.1.33.2.1 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 (a] 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 # Socit Franaise 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
69 Rule Algeria 1916 only - Jun 14 23:00s 1:00 S
70 Rule Algeria 1916 1919 - Oct Sun>=1 23:00s 0 -
71 Rule Algeria 1917 only - Mar 24 23:00s 1:00 S
72 Rule Algeria 1918 only - Mar 9 23:00s 1:00 S
73 Rule Algeria 1919 only - Mar 1 23:00s 1:00 S
74 Rule Algeria 1920 only - Feb 14 23:00s 1:00 S
75 Rule Algeria 1920 only - Oct 23 23:00s 0 -
76 Rule Algeria 1921 only - Mar 14 23:00s 1:00 S
77 Rule Algeria 1921 only - Jun 21 23:00s 0 -
78 Rule Algeria 1939 only - Sep 11 23:00s 1:00 S
79 Rule Algeria 1939 only - Nov 19 1:00 0 -
80 Rule Algeria 1944 1945 - Apr Mon>=1 2:00 1:00 S
81 Rule Algeria 1944 only - Oct 8 2:00 0 -
82 Rule Algeria 1945 only - Sep 16 1:00 0 -
83 Rule Algeria 1971 only - Apr 25 23:00s 1:00 S
84 Rule Algeria 1971 only - Sep 26 23:00s 0 -
85 Rule Algeria 1977 only - May 6 0:00 1:00 S
86 Rule Algeria 1977 only - Oct 21 0:00 0 -
87 Rule Algeria 1978 only - Mar 24 1:00 1:00 S
88 Rule Algeria 1978 only - Sep 22 3:00 0 -
89 Rule Algeria 1980 only - Apr 25 0:00 1:00 S
90 Rule Algeria 1980 only - Oct 31 2:00 0 -
91 # See Europe/Paris for PMT-related transitions.
92 # Zone NAME STDOFF RULES FORMAT [UNTIL]
93 Zone 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 # Angola
105 # Zone NAME STDOFF RULES FORMAT [UNTIL]
106 Zone Africa/Luanda 0:52:56 - LMT 1892
107 0:52:04 - LMT 1911 Dec 31 23:00u # Luanda MT?
108 1:00 - WAT
109
110 # Benin
111 # Zone NAME STDOFF RULES FORMAT [UNTIL]
112 Zone Africa/Porto-Novo 0:10:28 - LMT 1912 Jan 1
113 0:00 - GMT 1934 Feb 26
114 1:00 - WAT
115
116 # Botswana
117 # Zone NAME STDOFF RULES FORMAT [UNTIL]
118 Zone Africa/Gaborone 1:43:40 - LMT 1885
119 1:30 - SAST 1903 Mar
120 2:00 - CAT 1943 Sep 19 2:00
121 2:00 1:00 CAST 1944 Mar 19 2:00
122 2:00 - CAT
123
124 # Burkina Faso
125 # Zone NAME STDOFF RULES FORMAT [UNTIL]
126 Zone Africa/Ouagadougou -0:06:04 - LMT 1912
127 0:00 - GMT
128
129 # Burundi
130 # Zone NAME STDOFF RULES FORMAT [UNTIL]
131 Zone Africa/Bujumbura 1:57:28 - LMT 1890
132 2:00 - CAT
133
134 # Cameroon
135 # Zone NAME STDOFF RULES FORMAT [UNTIL]
136 Zone Africa/Douala 0:38:48 - LMT 1912
137 1:00 - WAT
138
139 # Cape Verde / Cabo Verde
140 #
141 # From Tim Parenti (2024-07-01), per Paul Eggert (2018-02-16):
142 # For timestamps before independence, see commentary for Europe/Lisbon.
143 # Shanks gives 1907 instead for the transition to -02.
144 #
145 # Zone NAME STDOFF RULES FORMAT [UNTIL]
146 Zone Atlantic/Cape_Verde -1:34:04 - LMT 1912 Jan 01 2:00u # Praia
147 -2:00 - %z 1942 Sep
148 -2:00 1:00 %z 1945 Oct 15
149 -2:00 - %z 1975 Nov 25 2:00
150 -1:00 - %z
151
152 # Central African Republic
153 # Zone NAME STDOFF RULES FORMAT [UNTIL]
154 Zone Africa/Bangui 1:14:20 - LMT 1912
155 1:00 - WAT
156
157 # Chad
158 # Zone NAME STDOFF RULES FORMAT [UNTIL]
159 Zone Africa/Ndjamena 1:00:12 - LMT 1912 Jan 1 # N'Djamena
160 1:00 - WAT 1979 Oct 14
161 1:00 1:00 WAST 1980 Mar 8
162 1:00 - WAT
163
164 # Comoros
165 # Zone NAME STDOFF RULES FORMAT [UNTIL]
166 Zone Indian/Comoro 2:53:04 - LMT 1911 Jul # Moroni, Gran Comoro
167 3:00 - EAT
168
169 # Democratic Republic of the Congo
170 # Zone NAME STDOFF RULES FORMAT [UNTIL]
171 Zone Africa/Kinshasa 1:01:12 - LMT 1897 Nov 9
172 1:00 - WAT
173
174 # Zone NAME STDOFF RULES FORMAT [UNTIL]
175 Zone Africa/Lubumbashi 1:49:52 - LMT 1897 Nov 9
176 1:00 - WAT 1920 Apr 25
177 2:00 - CAT
178
179 # Republic of the Congo
180 # Zone NAME STDOFF RULES FORMAT [UNTIL]
181 Zone Africa/Brazzaville 1:01:08 - LMT 1912
182 1:00 - WAT
183
184 # Cte d'Ivoire (Ivory Coast)
185
186 # The other parts of the St Helena territory are similar:
187 # Tristan da Cunha: on GMT, say Whitman and the CIA
188 # Ascension: on GMT, say the USNO (1995-12-21) and the CIA
189 # Gough (scientific station since 1955; sealers wintered previously):
190 # on GMT, says the CIA
191 # Inaccessible, Nightingale: uninhabited
192
193 # Zone NAME STDOFF RULES FORMAT [UNTIL]
194 Zone Africa/Abidjan -0:16:08 - LMT 1912 Jan 1
195 0:00 - GMT
196
197 # Djibouti
198 # Zone NAME STDOFF RULES FORMAT [UNTIL]
199 Zone Africa/Djibouti 2:52:36 - LMT 1911 Jul
200 3:00 - EAT
201
202
203 ###############################################################################
204
205 # Egypt
206
207 # Milne says Cairo used 2:05:08.9, the local mean time of the Abbasizeh
208 # observatory. Milne also says that the official time for
209 # Egypt was mean noon at the Great Pyramid, 2:04:30.5, but apparently this
210 # did not apply to Cairo, Alexandria, or Port Said.
211
212 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
213 Rule Egypt 1940 only - Jul 15 0:00 1:00 S
214 Rule Egypt 1940 only - Oct 1 0:00 0 -
215 Rule Egypt 1941 only - Apr 15 0:00 1:00 S
216 Rule Egypt 1941 only - Sep 16 0:00 0 -
217 Rule Egypt 1942 1944 - Apr 1 0:00 1:00 S
218 Rule Egypt 1942 only - Oct 27 0:00 0 -
219 Rule Egypt 1943 1945 - Nov 1 0:00 0 -
220 Rule Egypt 1945 only - Apr 16 0:00 1:00 S
221 Rule Egypt 1957 only - May 10 0:00 1:00 S
222 Rule Egypt 1957 1958 - Oct 1 0:00 0 -
223 Rule Egypt 1958 only - May 1 0:00 1:00 S
224 Rule Egypt 1959 1981 - May 1 1:00 1:00 S
225 Rule Egypt 1959 1965 - Sep 30 3:00 0 -
226 Rule Egypt 1966 1994 - Oct 1 3:00 0 -
227 Rule Egypt 1982 only - Jul 25 1:00 1:00 S
228 Rule Egypt 1983 only - Jul 12 1:00 1:00 S
229 Rule Egypt 1984 1988 - May 1 1:00 1:00 S
230 Rule Egypt 1989 only - May 6 1:00 1:00 S
231 Rule Egypt 1990 1994 - May 1 1:00 1:00 S
232 # IATA (after 1990) says transitions are at 0:00.
233 # Go with IATA starting in 1995, except correct 1995 entry from 09-30 to 09-29.
234
235 # From Alexander Krivenyshev (2011-04-20):
236 # "...Egypt's interim cabinet decided on Wednesday to cancel daylight
237 # saving time after a poll posted on its website showed the majority of
238 # Egyptians would approve the cancellation."
239 #
240 # Egypt to cancel daylight saving time
241 # http://www.almasryalyoum.com/en/node/407168
242 # or
243 # http://www.worldtimezone.com/dst_news/dst_news_egypt04.html
244 Rule Egypt 1995 2010 - Apr lastFri 0:00s 1:00 S
245 Rule Egypt 1995 2005 - Sep lastThu 24:00 0 -
246 # From Steffen Thorsen (2006-09-19):
247 # The Egyptian Gazette, issue 41,090 (2006-09-18), page 1, reports:
248 # Egypt will turn back clocks by one hour at the midnight of Thursday
249 # after observing the daylight saving time since May.
250 # http://news.gom.com.eg/gazette/pdf/2006/09/18/01.pdf
251 Rule Egypt 2006 only - Sep 21 24:00 0 -
252 # From Dirk Losch (2007-08-14):
253 # I received a mail from an airline which says that the daylight
254 # saving time in Egypt will end in the night of 2007-09-06 to 2007-09-07.
255 # From Jesper Nrgaard Welen (2007-08-15): [The following agree:]
256 # http://www.nentjes.info/Bill/bill5.htm
257 # https://www.timeanddate.com/worldclock/city.html?n=53
258 # From Steffen Thorsen (2007-09-04): The official information...:
259 # http://www.sis.gov.eg/En/EgyptOnline/Miscellaneous/000002/0207000000000000001580.htm
260 Rule Egypt 2007 only - Sep Thu>=1 24:00 0 -
261 # From Abdelrahman Hassan (2007-09-06):
262 # Due to the Hijri (lunar Islamic calendar) year being 11 days shorter
263 # than the year of the Gregorian calendar, Ramadan shifts earlier each
264 # year. This year it will be observed September 13 (September is quite
265 # hot in Egypt), and the idea is to make fasting easier for workers by
266 # shifting business hours one hour out of daytime heat. Consequently,
267 # unless discontinued, next DST may end Thursday 28 August 2008.
268 # From Paul Eggert (2007-08-17):
269 # For lack of better info, assume the new rule is last Thursday in August.
270
271 # From Petr Machata (2009-04-06):
272 # The following appeared in Red Hat bugzilla[1] (edited):
273 #
274 # > $ zdump -v /usr/share/zoneinfo/Africa/Cairo | grep 2009
275 # > /usr/share/zoneinfo/Africa/Cairo Thu Apr 23 21:59:59 2009 UTC = Thu =
276 # Apr 23
277 # > 23:59:59 2009 EET isdst=0 gmtoff=7200
278 # > /usr/share/zoneinfo/Africa/Cairo Thu Apr 23 22:00:00 2009 UTC = Fri =
279 # Apr 24
280 # > 01:00:00 2009 EEST isdst=1 gmtoff=10800
281 # > /usr/share/zoneinfo/Africa/Cairo Thu Aug 27 20:59:59 2009 UTC = Thu =
282 # Aug 27
283 # > 23:59:59 2009 EEST isdst=1 gmtoff=10800
284 # > /usr/share/zoneinfo/Africa/Cairo Thu Aug 27 21:00:00 2009 UTC = Thu =
285 # Aug 27
286 # > 23:00:00 2009 EET isdst=0 gmtoff=7200
287 #
288 # > end date should be Thu Sep 24 2009 (Last Thursday in September at 23:59=
289 # :59)
290 # > http://support.microsoft.com/kb/958729/
291 #
292 # timeanddate[2] and another site I've found[3] also support that.
293 #
294 # [1] https://bugzilla.redhat.com/show_bug.cgi?id=492263
295 # [2] https://www.timeanddate.com/worldclock/clockchange.html?n=53
296 # [3] https://wwp.greenwichmeantime.com/time-zone/africa/egypt/
297
298 # From Arthur David Olson (2009-04-20):
299 # In 2009 (and for the next several years), Ramadan ends before the fourth
300 # Thursday in September; Egypt is expected to revert to the last Thursday
301 # in September.
302
303 # From Steffen Thorsen (2009-08-11):
304 # We have been able to confirm the August change with the Egyptian Cabinet
305 # Information and Decision Support Center:
306 # https://www.timeanddate.com/news/time/egypt-dst-ends-2009.html
307 #
308 # The Middle East News Agency
309 # https://www.mena.org.eg/index.aspx
310 # also reports "Egypt starts winter time on August 21"
311 # today in article numbered "71, 11/08/2009 12:25 GMT."
312 # Only the title above is available without a subscription to their service,
313 # and can be found by searching for "winter" in their search engine
314 # (at least today).
315
316 # From Alexander Krivenyshev (2010-07-20):
317 # According to News from Egypt - Al-Masry Al-Youm Egypt's cabinet has
318 # decided that Daylight Saving Time will not be used in Egypt during
319 # Ramadan.
320 #
321 # Arabic translation:
322 # "Clocks to go back during Ramadan - and then forward again"
323 # http://www.almasryalyoum.com/en/news/clocks-go-back-during-ramadan-and-then-forward-again
324 # http://www.worldtimezone.com/dst_news/dst_news_egypt02.html
325
326 # From Ahmad El-Dardiry (2014-05-07):
327 # Egypt is to change back to Daylight system on May 15
328 # http://english.ahram.org.eg/NewsContent/1/64/100735/Egypt/Politics-/Egypts-government-to-reapply-daylight-saving-time-.aspx
329
330 # From Gunther Vermier (2014-05-13):
331 # our Egypt office confirms that the change will be at 15 May "midnight" (24:00)
332
333 # From Imed Chihi (2014-06-04):
334 # We have finally "located" a precise official reference about the DST changes
335 # in Egypt. The Ministers Cabinet decision is explained at
336 # http://www.cabinet.gov.eg/Media/CabinetMeetingsDetails.aspx?id=347 ...
337 # [T]his (Arabic) site is not accessible outside Egypt, but the page ...
338 # translates into: "With regard to daylight saving time, it is scheduled to
339 # take effect at exactly twelve o'clock this evening, Thursday, 15 MAY 2014,
340 # to be suspended by twelve o'clock on the evening of Thursday, 26 JUN 2014,
341 # and re-established again at the end of the month of Ramadan, at twelve
342 # o'clock on the evening of Thursday, 31 JUL 2014." This statement has been
343 # reproduced by other (more accessible) sites[, e.g.,]...
344 # http://elgornal.net/news/news.aspx?id=4699258
345
346 # From Steffen Thorsen (2015-04-08):
347 # Egypt will start DST on midnight after Thursday, April 30, 2015.
348 # This is based on a law (no 35) from May 15, 2014 saying it starts the last
349 # Thursday of April.... Clocks will still be turned back for Ramadan, but
350 # dates not yet announced....
351 # http://almogaz.com/news/weird-news/2015/04/05/1947105 ...
352 # https://www.timeanddate.com/news/time/egypt-starts-dst-2015.html
353
354 # From Ahmed Nazmy (2015-04-20):
355 # Egypt's ministers cabinet just announced ... that it will cancel DST at
356 # least for 2015.
357 #
358 # From Tim Parenti (2015-04-20):
359 # http://english.ahram.org.eg/WriterArticles/NewsContentP/1/128195/Egypt/No-daylight-saving-this-summer-Egypts-prime-minist.aspx
360 # "Egypt's cabinet agreed on Monday not to switch clocks for daylight saving
361 # time this summer, and carry out studies on the possibility of canceling the
362 # practice altogether in future years."
363 #
364 # From Paul Eggert (2015-04-24):
365 # Yesterday the office of Egyptian President El-Sisi announced his
366 # decision to abandon DST permanently. See Ahram Online 2015-04-24.
367 # http://english.ahram.org.eg/NewsContent/1/64/128509/Egypt/Politics-/Sisi-cancels-daylight-saving-time-in-Egypt.aspx
368
369 # From Steffen Thorsen (2016-04-29):
370 # Egypt will have DST from July 7 until the end of October....
371 # http://english.ahram.org.eg/NewsContentP/1/204655/Egypt/Daylight-savings-time-returning-to-Egypt-on--July.aspx
372 # From Mina Samuel (2016-07-04):
373 # Egyptian government took the decision to cancel the DST,
374
375 # From Ahmad ElDardiry (2023-03-01):
376 # Egypt officially announced today that daylight savings will be
377 # applied from last Friday of April to last Thursday of October.
378 # From Paul Eggert (2023-03-01):
379 # Assume transitions are at 00:00 and 24:00 respectively.
380 # From Amir Adib (2023-03-07):
381 # https://www.facebook.com/EgyptianCabinet/posts/638829614954129/
382
383 Rule Egypt 2008 only - Aug lastThu 24:00 0 -
384 Rule Egypt 2009 only - Aug 20 24:00 0 -
385 Rule Egypt 2010 only - Aug 10 24:00 0 -
386 Rule Egypt 2010 only - Sep 9 24:00 1:00 S
387 Rule Egypt 2010 only - Sep lastThu 24:00 0 -
388 Rule Egypt 2014 only - May 15 24:00 1:00 S
389 Rule Egypt 2014 only - Jun 26 24:00 0 -
390 Rule Egypt 2014 only - Jul 31 24:00 1:00 S
391 Rule Egypt 2014 only - Sep lastThu 24:00 0 -
392 Rule Egypt 2023 max - Apr lastFri 0:00 1:00 S
393 Rule Egypt 2023 max - Oct lastThu 24:00 0 -
394
395 # Zone NAME STDOFF RULES FORMAT [UNTIL]
396 #STDOFF 2:05:08.9
397 Zone Africa/Cairo 2:05:09 - LMT 1900 Oct
398 2:00 Egypt EE%sT
399
400 # Equatorial Guinea
401 # Zone NAME STDOFF RULES FORMAT [UNTIL]
402 Zone Africa/Malabo 0:35:08 - LMT 1912
403 0:00 - GMT 1963 Dec 15
404 1:00 - WAT
405
406 # Eritrea
407 # Zone NAME STDOFF RULES FORMAT [UNTIL]
408 Zone Africa/Asmara 2:35:32 - LMT 1870
409 2:35:32 - AMT 1890 # Asmara Mean Time
410 2:35:20 - ADMT 1936 May 5 # Adis Dera MT
411 3:00 - EAT
412
413 # Eswatini (formerly Swaziland)
414 # Zone NAME STDOFF RULES FORMAT [UNTIL]
415 Zone Africa/Mbabane 2:04:24 - LMT 1903 Mar
416 2:00 - SAST
417
418 # Ethiopia
419 # Zone NAME STDOFF RULES FORMAT [UNTIL]
420 Zone Africa/Addis_Ababa 2:34:48 - LMT 1870
421 2:35:20 - ADMT 1936 May 5 # Adis Dera MT
422 3:00 - EAT
423
424 # Gabon
425 # Zone NAME STDOFF RULES FORMAT [UNTIL]
426 Zone Africa/Libreville 0:37:48 - LMT 1912
427 1:00 - WAT
428
429 # The Gambia
430 # Zone NAME STDOFF RULES FORMAT [UNTIL]
431 Zone Africa/Banjul -1:06:36 - LMT 1912
432 -1:06:36 - BMT 1933 Apr 1 # Banjul Mean Time
433 -1:00 - -01 1942 Feb 1 0:00
434 0:00 - GMT
435
436 # Ghana
437 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
438 Rule Ghana 1919 only - Nov 24 0:00 0:20 +0020
439 Rule Ghana 1920 1942 - Jan 1 2:00 0 GMT
440 Rule Ghana 1920 1939 - Sep 1 2:00 0:20 +0020
441 Rule Ghana 1940 1941 - May 1 2:00 0:20 +0020
442 Rule Ghana 1950 1955 - Sep 1 2:00 0:30 +0030
443 Rule Ghana 1951 1956 - Jan 1 2:00 0 GMT
444
445 # Zone NAME STDOFF RULES FORMAT [UNTIL]
446 Zone Africa/Accra -0:00:52 - LMT 1915 Nov 2
447 0:00 Ghana %s 1942 Feb 8
448 0:30 - +0030 1946 Jan 6
449 0:00 Ghana %s
450
451 # Guinea
452 # Zone NAME STDOFF RULES FORMAT [UNTIL]
453 Zone Africa/Conakry -0:54:52 - LMT 1912
454 0:00 - GMT 1934 Feb 26
455 -1:00 - -01 1960
456 0:00 - GMT
457
458 # Guinea-Bissau
459 #
460 # From Tim Parenti (2024-07-01), per Paul Eggert (2018-02-16):
461 # For timestamps before independence, see commentary for Europe/Lisbon.
462 #
463 # Zone NAME STDOFF RULES FORMAT [UNTIL]
464 Zone Africa/Bissau -1:02:20 - LMT 1912 Jan 1 1:00u
465 -1:00 - %z 1975
466 0:00 - GMT
467
468 # Kenya
469
470 # From P Chan (2020-10-24):
471 #
472 # The standard time of GMT+2:30 was adopted in the East Africa Protectorate....
473 # [The Official Gazette, 1908-05-01, p 274]
474 # https://books.google.com/books?id=e-cAC-sjPSEC&pg=PA274
475 #
476 # At midnight on 30 June 1928 the clocks throughout Kenya was put forward
477 # half an hour by the Alteration of Time Ordinance, 1928.
478 # https://gazettes.africa/archive/ke/1928/ke-government-gazette-dated-1928-05-11-no-28.pdf
479 # [Ordinance No. 11 of 1928, The Official Gazette, 1928-06-26, p 813]
480 # https://books.google.com/books?id=2S0S6os32ZUC&pg=PA813
481 #
482 # The 1928 ordinance was repealed by the Alteration of Time (repeal) Ordinance,
483 # 1929 and the time was restored to GMT+2:30 at midnight on 4 January 1930.
484 # [Ordinance No. 97 of 1929, The Official Gazette, 1929-12-31, p 2701]
485 # https://books.google.com/books?id=_g18jIZQlwwC&pg=PA2701
486 #
487 # The Alteration of Time Ordinance, 1936 changed the time to GMT+2:45
488 # and repealed the previous ordinance at midnight on 31 December 1936.
489 # [The Official Gazette, 1936-07-21, p 705]
490 # https://books.google.com/books?id=K7j41z0aC5wC&pg=PA705
491 #
492 # The Defence (Amendment of Laws No. 120) Regulations changed the time
493 # to GMT+3 at midnight on 31 July 1942.
494 # [Kenya Official Gazette Supplement No. 32, 1942-07-21, p 331]
495 # https://books.google.com/books?hl=zh-TW&id=c_E-AQAAIAAJ&pg=PA331
496 # The provision of the 1936 ordinance was not repealed and was later
497 # incorporated in the Interpretation and General Clauses Ordinance in 1948.
498 # Although it was overridden by the 1942 regulations.
499 # [The Laws of Kenya in force on 1948-09-21, Title I, Chapter 1, 31]
500 # https://dds.crl.edu/item/217517 (p.101)
501 # In 1950 the Interpretation and General Clauses Ordinance was amended to adopt
502 # GMT+3 permanently as the 1942 regulations were due to expire on 10 December.
503 # https://books.google.com/books?id=jvR8mUDAwR0C&pg=PA787
504 # [Ordinance No. 44 of 1950, Kenya Ordinances 1950, Vol. XXIX, p 294]
505 # https://books.google.com/books?id=-_dQAQAAMAAJ&pg=PA294
506
507 # From Paul Eggert (2020-10-24):
508 # The 1908-05-01 announcement does not give an effective date,
509 # so just say "1908 May".
510
511 # From Paul Eggert (2018-09-11):
512 # Unfortunately tzdb records only Western clock time in use in Ethiopia,
513 # as the tzdb format is not up to properly recording a common Ethiopian
514 # timekeeping practice that is based on solar time. See:
515 # Mortada D. If you have a meeting in Ethiopia, you'd better double
516 # check the time. PRI's The World. 2015-01-30 15:15 -05.
517 # https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-better-double-check-time
518
519 # Zone NAME STDOFF RULES FORMAT [UNTIL]
520 Zone Africa/Nairobi 2:27:16 - LMT 1908 May
521 2:30 - %z 1928 Jun 30 24:00
522 3:00 - EAT 1930 Jan 4 24:00
523 2:30 - %z 1936 Dec 31 24:00
524 2:45 - %z 1942 Jul 31 24:00
525 3:00 - EAT
526
527 # Lesotho
528 # Zone NAME STDOFF RULES FORMAT [UNTIL]
529 Zone Africa/Maseru 1:50:00 - LMT 1903 Mar
530 2:00 - SAST 1943 Sep 19 2:00
531 2:00 1:00 SAST 1944 Mar 19 2:00
532 2:00 - SAST
533
534 # Liberia
535 #
536 # From Paul Eggert (2017-03-02):
537 #
538 # The Nautical Almanac for the Year 1970, p 264, is the source for -0:44:30.
539 #
540 # In 1972 Liberia was the last country to switch from a UT offset
541 # that was not a multiple of 15 or 20 minutes. The 1972 change was on
542 # 1972-01-07, according to an entry dated 1972-01-04 on p 330 of:
543 # Presidential Papers: First year of the administration of
544 # President William R. Tolbert, Jr., July 23, 1971-July 31, 1972.
545 # Monrovia: Executive Mansion.
546 #
547 # Use the abbreviation "MMT" before 1972, as the more accurate numeric
548 # abbreviation "-004430" would be one byte over the POSIX limit.
549 #
550 # Zone NAME STDOFF RULES FORMAT [UNTIL]
551 Zone Africa/Monrovia -0:43:08 - LMT 1882
552 -0:43:08 - MMT 1919 Mar # Monrovia Mean Time
553 -0:44:30 - MMT 1972 Jan 7 # approximately MMT
554 0:00 - GMT
555
556 ###############################################################################
557
558 # Libya
559
560 # From Even Scharning (2012-11-10):
561 # Libya set their time one hour back at 02:00 on Saturday November 10.
562 # https://www.libyaherald.com/2012/11/04/clocks-to-go-back-an-hour-on-saturday/
563 # Here is an official source [in Arabic]: http://ls.ly/fb6Yc
564 #
565 # Steffen Thorsen forwarded a translation (2012-11-10) in
566 # https://mm.icann.org/pipermail/tz/2012-November/018451.html
567 #
568 # From Tim Parenti (2012-11-11):
569 # Treat the 2012-11-10 change as a zone change from UTC+2 to UTC+1.
570 # The DST rules planned for 2013 and onward roughly mirror those of Europe
571 # (either two days before them or five days after them, so as to fall on
572 # lastFri instead of lastSun).
573
574 # From Even Scharning (2013-10-25):
575 # The scheduled end of DST in Libya on Friday, October 25, 2013 was
576 # cancelled yesterday....
577 # https://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/
578 #
579 # From Paul Eggert (2013-10-25):
580 # For now, assume they're reverting to the pre-2012 rules of permanent UT +02.
581
582 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
583 Rule Libya 1951 only - Oct 14 2:00 1:00 S
584 Rule Libya 1952 only - Jan 1 0:00 0 -
585 Rule Libya 1953 only - Oct 9 2:00 1:00 S
586 Rule Libya 1954 only - Jan 1 0:00 0 -
587 Rule Libya 1955 only - Sep 30 0:00 1:00 S
588 Rule Libya 1956 only - Jan 1 0:00 0 -
589 Rule Libya 1982 1984 - Apr 1 0:00 1:00 S
590 Rule Libya 1982 1985 - Oct 1 0:00 0 -
591 Rule Libya 1985 only - Apr 6 0:00 1:00 S
592 Rule Libya 1986 only - Apr 4 0:00 1:00 S
593 Rule Libya 1986 only - Oct 3 0:00 0 -
594 Rule Libya 1987 1989 - Apr 1 0:00 1:00 S
595 Rule Libya 1987 1989 - Oct 1 0:00 0 -
596 Rule Libya 1997 only - Apr 4 0:00 1:00 S
597 Rule Libya 1997 only - Oct 4 0:00 0 -
598 Rule Libya 2013 only - Mar lastFri 1:00 1:00 S
599 Rule Libya 2013 only - Oct lastFri 2:00 0 -
600 # Zone NAME STDOFF RULES FORMAT [UNTIL]
601 Zone Africa/Tripoli 0:52:44 - LMT 1920
602 1:00 Libya CE%sT 1959
603 2:00 - EET 1982
604 1:00 Libya CE%sT 1990 May 4
605 # The 1996 and 1997 entries are from Shanks & Pottenger;
606 # the IATA SSIM data entries contain some obvious errors.
607 2:00 - EET 1996 Sep 30
608 1:00 Libya CE%sT 1997 Oct 4
609 2:00 - EET 2012 Nov 10 2:00
610 1:00 Libya CE%sT 2013 Oct 25 2:00
611 2:00 - EET
612
613 # Madagascar
614 # Zone NAME STDOFF RULES FORMAT [UNTIL]
615 Zone Indian/Antananarivo 3:10:04 - LMT 1911 Jul
616 3:00 - EAT 1954 Feb 27 23:00s
617 3:00 1:00 EAST 1954 May 29 23:00s
618 3:00 - EAT
619
620 # Malawi
621 # Zone NAME STDOFF RULES FORMAT [UNTIL]
622 Zone Africa/Blantyre 2:20:00 - LMT 1911 Jul 24
623 2:21:10 - ZMT 1914 Jun 30 # Zomba Mean Time
624 2:21 - ZMT 1925 Jul 1
625 2:00 - CAT
626
627 # Mali
628 # Zone NAME STDOFF RULES FORMAT [UNTIL]
629 Zone Africa/Bamako -0:32:00 - LMT 1912
630 0:00 - GMT 1934 Feb 26
631 -1:00 - -01 1960 Jun 20
632 0:00 - GMT
633 #PACKRATLIST zone.tab Link Africa/Bamako Africa/Timbuktu
634
635 # Mauritania
636 # Zone NAME STDOFF RULES FORMAT [UNTIL]
637 Zone Africa/Nouakchott -1:03:48 - LMT 1912
638 0:00 - GMT 1934 Feb 26
639 -1:00 - -01 1960 Nov 28
640 0:00 - GMT
641
642 # Mauritius
643
644 # From Steffen Thorsen (2008-06-25):
645 # Mauritius plans to observe DST from 2008-11-01 to 2009-03-31 on a trial
646 # basis....
647 # It seems that Mauritius observed daylight saving time from 1982-10-10 to
648 # 1983-03-20 as well, but that was not successful....
649 # https://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html
650
651 # From Alex Krivenyshev (2008-06-25):
652 # http://economicdevelopment.gov.mu/portal/site/Mainhomepage/menuitem.a42b24128104d9845dabddd154508a0c/?content_id=0a7cee8b5d69a110VgnVCM1000000a04a8c0RCRD
653
654 # From Arthur David Olson (2008-06-30):
655 # The www.timeanddate.com article cited by Steffen Thorsen notes that "A
656 # final decision has yet to be made on the times that daylight saving
657 # would begin and end on these dates." As a place holder, use midnight.
658
659 # From Paul Eggert (2008-06-30):
660 # Follow Thorsen on DST in 1982/1983, instead of Shanks & Pottenger.
661
662 # From Steffen Thorsen (2008-07-10):
663 # According to
664 # http://www.lexpress.mu/display_article.php?news_id=111216
665 # (in French), Mauritius will start and end their DST a few days earlier
666 # than previously announced (2008-11-01 to 2009-03-31). The new start
667 # date is 2008-10-26 at 02:00 and the new end date is 2009-03-27 (no time
668 # given, but it is probably at either 2 or 3 wall clock time).
669 #
670 # A little strange though, since the article says that they moved the date
671 # to align itself with Europe and USA which also change time on that date,
672 # but that means they have not paid attention to what happened in
673 # USA/Canada last year (DST ends first Sunday in November). I also wonder
674 # why that they end on a Friday, instead of aligning with Europe which
675 # changes two days later.
676
677 # From Alex Krivenyshev (2008-07-11):
678 # Seems that English language article "The revival of daylight saving
679 # time: Energy conservation?"- No. 16578 (07/11/2008) was originally
680 # published on Monday, June 30, 2008...
681 #
682 # I guess that article in French "Le gouvernement avance l'introduction
683 # de l'heure d't" stating that DST in Mauritius starting on October 26
684 # and ending on March 27, 2009 is the most recent one....
685 # http://www.worldtimezone.com/dst_news/dst_news_mauritius02.html
686
687 # From Riad M. Hossen Ally (2008-08-03):
688 # The Government of Mauritius weblink
689 # http://www.gov.mu/portal/site/pmosite/menuitem.4ca0efdee47462e7440a600248a521ca/?content_id=4728ca68b2a5b110VgnVCM1000000a04a8c0RCRD
690 # Cabinet Decision of July 18th, 2008 states as follows:
691 #
692 # 4. ...Cabinet has agreed to the introduction into the National Assembly
693 # of the Time Bill which provides for the introduction of summer time in
694 # Mauritius. The summer time period which will be of one hour ahead of
695 # the standard time, will be aligned with that in Europe and the United
696 # States of America. It will start at two o'clock in the morning on the
697 # last Sunday of October and will end at two o'clock in the morning on
698 # the last Sunday of March the following year. The summer time for the
699 # year 2008-2009 will, therefore, be effective as from 26 October 2008
700 # and end on 29 March 2009.
701
702 # From Ed Maste (2008-10-07):
703 # THE TIME BILL (No. XXVII of 2008) Explanatory Memorandum states the
704 # beginning / ending of summer time is 2 o'clock standard time in the
705 # morning of the last Sunday of October / last Sunday of March.
706 # http://www.gov.mu/portal/goc/assemblysite/file/bill2708.pdf
707
708 # From Steffen Thorsen (2009-06-05):
709 # According to several sources, Mauritius will not continue to observe
710 # DST the coming summer...
711 #
712 # Some sources, in French:
713 # http://www.defimedia.info/news/946/Rashid-Beebeejaun-:--L%E2%80%99heure-d%E2%80%99t-ne-sera-pas-applique-cette-anne-
714 # http://lexpress.mu/Story/3398~Beebeejaun---Les-objectifs-d-conomie-d-nergie-de-l-heure-d-t-ont-t-atteints-
715 #
716 # Our wrap-up:
717 # https://www.timeanddate.com/news/time/mauritius-dst-will-not-repeat.html
718
719 # From Arthur David Olson (2009-07-11):
720 # The "mauritius-dst-will-not-repeat" wrapup includes this:
721 # "The trial ended on March 29, 2009, when the clocks moved back by one hour
722 # at 2am (or 02:00) local time..."
723
724 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
725 Rule Mauritius 1982 only - Oct 10 0:00 1:00 -
726 Rule Mauritius 1983 only - Mar 21 0:00 0 -
727 Rule Mauritius 2008 only - Oct lastSun 2:00 1:00 -
728 Rule Mauritius 2009 only - Mar lastSun 2:00 0 -
729 # Zone NAME STDOFF RULES FORMAT [UNTIL]
730 Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis
731 4:00 Mauritius %z
732 # Agalega Is, Rodriguez
733 # no information; probably like Indian/Mauritius
734
735
736 # Morocco
737 # See Africa/Ceuta for Spanish Morocco.
738
739 # Mayotte
740 # Zone NAME STDOFF RULES FORMAT [UNTIL]
741 Zone Indian/Mayotte 3:00:56 - LMT 1911 Jul # Mamoutzou
742 3:00 - EAT
743
744 # Morocco
745
746 # From Alex Krivenyshev (2008-05-09):
747 # Here is an article that Morocco plan to introduce Daylight Saving Time between
748 # 1 June, 2008 and 27 September, 2008.
749 #
750 # "... Morocco is to save energy by adjusting its clock during summer so it will
751 # be one hour ahead of GMT between 1 June and 27 September, according to
752 # Communication Minister and Government Spokesman, Khalid Naciri...."
753 #
754 # http://www.worldtimezone.com/dst_news/dst_news_morocco01.html
755 # http://en.afrik.com/news11892.html
756
757 # From Alex Krivenyshev (2008-05-09):
758 # The Morocco time change can be confirmed on Morocco web site Maghreb Arabe
759 # Presse:
760 # http://www.map.ma/eng/sections/box3/morocco_shifts_to_da/view
761 #
762 # Morocco shifts to daylight time on June 1st through September 27, Govt.
763 # spokesman.
764
765 # From Patrice Scattolin (2008-05-09):
766 # According to this article:
767 # https://www.avmaroc.com/actualite/heure-dete-comment-a127896.html
768 # (and republished here: <http://www.actu.ma/heure-dete-comment_i127896_0.html>)
769 # the changes occur at midnight:
770 #
771 # Saturday night May 31st at midnight (which in French is to be
772 # interpreted as the night between Saturday and Sunday)
773 # Sunday night the 28th at midnight
774 #
775 # Seeing that the 28th is Monday, I am guessing that she intends to say
776 # the midnight of the 28th which is the midnight between Sunday and
777 # Monday, which jives with other sources that say that it's inclusive
778 # June 1st to Sept 27th.
779 #
780 # The decision was taken by decree *2-08-224 *but I can't find the decree
781 # published on the web.
782 #
783 # It's also confirmed here:
784 # http://www.maroc.ma/NR/exeres/FACF141F-D910-44B0-B7FA-6E03733425D1.htm
785 # on a government portal as being between June 1st and Sept 27th (not yet
786 # posted in English).
787 #
788 # The following Google query will generate many relevant hits:
789 # https://www.google.com/search?hl=en&q=Conseil+de+gouvernement+maroc+heure+avance&btnG=Search
790
791 # From Steffen Thorsen (2008-08-27):
792 # Morocco will change the clocks back on the midnight between August 31
793 # and September 1. They originally planned to observe DST to near the end
794 # of September:
795 #
796 # One article about it (in French):
797 # http://www.menara.ma/fr/Actualites/Maroc/Societe/ci.retour_a_l_heure_gmt_a_partir_du_dimanche_31_aout_a_minuit_officiel_.default
798 #
799 # We have some further details posted here:
800 # https://www.timeanddate.com/news/time/morocco-ends-dst-early-2008.html
801
802 # From Steffen Thorsen (2009-03-17):
803 # Morocco will observe DST from 2009-06-01 00:00 to 2009-08-21 00:00 according
804 # to many sources, such as
805 # http://news.marweb.com/morocco/entertainment/morocco-daylight-saving.html
806 # http://www.medi1sat.ma/fr/depeche.aspx?idp=2312
807 # (French)
808 #
809 # Our summary:
810 # https://www.timeanddate.com/news/time/morocco-starts-dst-2009.html
811
812 # From Alexander Krivenyshev (2009-03-17):
813 # Here is a link to official document from Royaume du Maroc Premier Ministre,
814 # Ministre de la Modernisation des Secteurs Publics
815 #
816 # Under Article 1 of Royal Decree No. 455-67 of Act 23 safar 1387 (2 June 1967)
817 # concerning the amendment of the legal time, the Ministry of Modernization of
818 # Public Sectors announced that the official time in the Kingdom will be
819 # advanced 60 minutes from Sunday 31 May 2009 at midnight.
820 #
821 # http://www.mmsp.gov.ma/francais/Actualites_fr/PDF_Actualites_Fr/HeureEte_FR.pdf
822 # http://www.worldtimezone.com/dst_news/dst_news_morocco03.html
823
824 # From Steffen Thorsen (2010-04-13):
825 # Several news media in Morocco report that the Ministry of Modernization
826 # of Public Sectors has announced that Morocco will have DST from
827 # 2010-05-02 to 2010-08-08.
828 #
829 # Example:
830 # http://www.lavieeco.com/actualites/4099-le-maroc-passera-a-l-heure-d-ete-gmt1-le-2-mai.html
831 # (French)
832 # Our page:
833 # https://www.timeanddate.com/news/time/morocco-starts-dst-2010.html
834
835 # From Dan Abitol (2011-03-30):
836 # ...Rules for Africa/Casablanca are the following (24h format)
837 # The 3rd April 2011 at 00:00:00, [it] will be 3rd April 01:00:00
838 # The 31st July 2011 at 00:59:59, [it] will be 31st July 00:00:00
839 # ...Official links of change in morocco
840 # The change was broadcast on the FM Radio
841 # I ve called ANRT (telecom regulations in Morocco) at
842 # +212.537.71.84.00
843 # http://www.anrt.net.ma/fr/
844 # They said that
845 # http://www.map.ma/fr/sections/accueil/l_heure_legale_au_ma/view
846 # is the official publication to look at.
847 # They said that the decision was already taken.
848 #
849 # More articles in the press
850 # https://www.yabiladi.com/articles/details/5058/secret-l-heure-d-ete-maroc-leve.html
851 # http://www.lematin.ma/Actualite/Express/Article.asp?id=148923
852 # http://www.lavieeco.com/actualite/Le-Maroc-passe-sur-GMT+1-a-partir-de-dim
853
854 # From Petr Machata (2011-03-30):
855 # They have it written in English here:
856 # http://www.map.ma/eng/sections/home/morocco_to_spring_fo/view
857 #
858 # It says there that "Morocco will resume its standard time on July 31,
859 # 2011 at midnight." Now they don't say whether they mean midnight of
860 # wall clock time (i.e. 11pm UTC), but that's what I would assume. It has
861 # also been like that in the past.
862
863 # From Alexander Krivenyshev (2012-03-09):
864 # According to Infomdiaire web site from Morocco (infomediaire.ma),
865 # on March 9, 2012, (in French) Heure lgale:
866 # Le Maroc adopte officiellement l'heure d't
867 # http://www.infomediaire.ma/news/maroc/heure-lgale-le-maroc-adopte-officiellement-lheure-dt
868 # Governing Council adopted draft decree, that Morocco DST starts on
869 # the last Sunday of March (March 25, 2012) and ends on
870 # last Sunday of September (September 30, 2012)
871 # except the month of Ramadan.
872 # or (brief)
873 # http://www.worldtimezone.com/dst_news/dst_news_morocco06.html
874
875 # From Arthur David Olson (2012-03-10):
876 # The infomediaire.ma source indicates that the system is to be in
877 # effect every year. It gives 03H00 as the "fall back" time of day;
878 # it lacks a "spring forward" time of day; assume 2:00 XXX.
879 # Wait on specifying the Ramadan exception for details about
880 # start date, start time of day, end date, and end time of day XXX.
881
882 # From Christophe Tropamer (2012-03-16):
883 # Seen Morocco change again:
884 # http://www.le2uminutes.com/actualite.php
885 # "... partir du dernier dimanche d'avril et non fins mars,
886 # comme annonc prcdemment."
887
888 # From Milamber Space Network (2012-07-17):
889 # The official return to GMT is announced by the Moroccan government:
890 # http://www.mmsp.gov.ma/fr/actualites.aspx?id=288 [in French]
891 #
892 # Google translation, lightly edited:
893 # Back to the standard time of the Kingdom (GMT)
894 # Pursuant to Decree No. 2-12-126 issued on 26 Jumada (I) 1433 (April 18,
895 # 2012) and in accordance with the order of Mr. President of the
896 # Government No. 3-47-12 issued on 24 Sha'ban (11 July 2012), the Ministry
897 # of Public Service and Administration Modernization announces the return
898 # of the legal time of the Kingdom (GMT) from Friday, July 20, 2012 until
899 # Monday, August 20, 2012. So the time will be delayed by 60 minutes from
900 # 3:00 am Friday, July 20, 2012 and will again be advanced by 60 minutes
901 # August 20, 2012 from 2:00 am.
902
903 # From Paul Eggert (2013-03-06):
904 # Morocco's daylight-saving transitions due to Ramadan seem to be
905 # announced a bit in advance. On 2012-07-11 the Moroccan government
906 # announced that year's Ramadan daylight-saving transitions would be
907 # 2012-07-20 and 2012-08-20; see
908 # http://www.mmsp.gov.ma/fr/actualites.aspx?id=288
909
910 # From Andrew Paprocki (2013-07-02):
911 # Morocco announced that the year's Ramadan daylight-savings
912 # transitions would be 2013-07-07 and 2013-08-10; see:
913 # http://www.maroc.ma/en/news/morocco-suspends-daylight-saving-time-july-7-aug10
914
915 # From Steffen Thorsen (2013-09-28):
916 # Morocco extends DST by one month, on very short notice, just 1 day
917 # before it was going to end. There is a new decree (2.13.781) for
918 # this, where DST from now on goes from last Sunday of March at 02:00
919 # to last Sunday of October at 03:00, similar to EU rules. Official
920 # source (French):
921 # http://www.maroc.gov.ma/fr/actualites/lhoraire-dete-gmt1-maintenu-jusquau-27-octobre-2013
922 # Another source (specifying the time for start and end in the decree):
923 # http://www.lemag.ma/Heure-d-ete-au-Maroc-jusqu-au-27-octobre_a75620.html
924
925 # From Sebastien Willemijns (2014-03-18):
926 # http://www.afriquinfos.com/articles/2014/3/18/maroc-heure-dete-avancez-tous-horloges-247891.asp
927
928 # From Milamber Space Network (2014-06-05):
929 # The Moroccan government has recently announced that the country will return
930 # to standard time at 03:00 on Saturday, June 28, 2014 local time.... DST
931 # will resume again at 02:00 on Saturday, August 2, 2014....
932 # http://www.mmsp.gov.ma/fr/actualites.aspx?id=586
933
934 # From Milamber (2015-06-08):
935 # (Google Translation) The hour will thus be delayed 60 minutes
936 # Sunday, June 14 at 3:00, the ministry said in a statement, adding
937 # that the time will be advanced again 60 minutes Sunday, July 19,
938 # 2015 at 2:00. The move comes under 2.12.126 Decree of 26 Jumada I
939 # 1433 (18 April 2012) and the decision of the Head of Government of
940 # 16 N. 3-29-15 Chaaban 1435 (4 June 2015).
941 # Source (french):
942 # https://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/
943 #
944 # From Milamber (2015-06-09):
945 # http://www.mmsp.gov.ma/fr/actualites.aspx?id=863
946 #
947 # From Michael Deckers (2015-06-09):
948 # [The gov.ma announcement] would (probably) make the switch on 2015-07-19 go
949 # from 03:00 to 04:00 rather than from 02:00 to 03:00, as in the patch....
950 # I think the patch is correct and the quoted text is wrong; the text in
951 # <https://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/> agrees
952 # with the patch.
953
954 # From Mohamed Essedik Najd (2018-10-26):
955 # Today, a Moroccan government council approved the perpetual addition
956 # of 60 minutes to the regular Moroccan timezone.
957 # From Matt Johnson (2018-10-28):
958 # http://www.sgg.gov.ma/Portals/1/BO/2018/BO_6720-bis_Ar.pdf
959 #
960 # From Maamar Abdelkader (2018-11-01):
961 # We usually move clocks back the previous week end and come back to the +1
962 # the week end after.... The government does not announce yet the decision
963 # about this temporary change. But it s 99% sure that it will be the case,
964 # as in previous years. An unofficial survey was done these days, showing
965 # that 64% of asked people are ok for moving from +1 to +0 during Ramadan.
966 # https://leconomiste.com/article/1035870-enquete-l-economiste-sunergia-64-des-marocains-plebiscitent-le-gmt-pendant-ramadan
967
968 # From Naoufal Semlali (2019-04-16):
969 # Morocco will be on GMT starting from Sunday, May 5th 2019 at 3am.
970 # The switch to GMT+1 will occur on Sunday, June 9th 2019 at 2am....
971 # http://fr.le360.ma/societe/voici-la-date-du-retour-a-lheure-legale-au-maroc-188222
972
973 # From Semlali Naoufal (2020-04-14):
974 # Following the announcement by the Moroccan government, the switch to
975 # GMT time will take place on Sunday, April 19, 2020 from 3 a.m. and
976 # the return to GMT+1 time will take place on Sunday, May 31, 2020 at 2 a.m....
977 # https://maroc-diplomatique.net/maroc-le-retour-a-lheure-gmt-est-prevu-dimanche-prochain/
978 # http://aujourdhui.ma/actualite/gmt1-retour-a-lheure-normale-dimanche-prochain-1
979 #
980 # From Milamber (2020-05-31)
981 # In Morocco (where I live), the end of Ramadan (Arabic month) is followed by
982 # the Eid al-Fitr, and concretely it's 1 or 2 day offs for the people (with
983 # traditional visiting of family, big lunches/dinners, etc.). So for this
984 # year the astronomical calculations don't include the following 2 days off in
985 # the calc. These 2 days fall in a Sunday/Monday, so it's not acceptable by
986 # people to have a time shift during these 2 days off. Perhaps you can modify
987 # the (predicted) rules for next years: if the end of Ramadan is a (probable)
988 # Friday or Saturday (and so the 2 days off are on a weekend), the next time
989 # shift will be the next weekend.
990 #
991 # From Milamber (2021-03-31, 2022-03-10):
992 # https://www.mmsp.gov.ma/fr/actualites.aspx?id=2076
993 # https://www.ecoactu.ma/horaires-administration-ramadan-gmtheure-gmt-a-partir-de-dimanche-27-mars/
994 #
995 # From Milamber (2023-03-14, 2023-03-15):
996 # The return to legal GMT time will take place this Sunday, March 19 at 3 a.m.
997 # ... the return to GMT+1 will be made on Sunday April 23, 2023 at 2 a.m.
998 # https://www.mmsp.gov.ma/fr/actualites/passage--l%E2%80%99heure-gmt--partir-du-dimanche-19-mars-2023
999 #
1000 # From Paul Eggert (2023-03-14):
1001 # For now, guess that in the future Morocco will fall back at 03:00
1002 # the last Sunday before Ramadan, and spring forward at 02:00 the
1003 # first Sunday after one day after Ramadan. To implement this,
1004 # transition dates and times for 2019 through 2087 were determined by
1005 # running the following program under GNU Emacs 28.2. (This algorithm
1006 # also produces the correct transition dates for 2016 through 2018,
1007 # though the times differ due to Morocco's time zone change in 2018.)
1008 # (let ((islamic-year 1440))
1009 # (require 'cal-islam)
1010 # (while (< islamic-year 1511)
1011 # (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
1012 # (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
1013 # (sunday 0))
1014 # (while (/= sunday (mod (setq a (1- a)) 7)))
1015 # (while (/= sunday (mod b 7))
1016 # (setq b (1+ b)))
1017 # (setq a (calendar-gregorian-from-absolute a))
1018 # (setq b (calendar-gregorian-from-absolute b))
1019 # (insert
1020 # (format
1021 # (concat "Rule\tMorocco\t%d\tonly\t-\t%s\t%2d\t 3:00\t-1:00\t-\n"
1022 # "Rule\tMorocco\t%d\tonly\t-\t%s\t%2d\t 2:00\t0\t-\n")
1023 # (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
1024 # (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
1025 # (setq islamic-year (+ 1 islamic-year))))
1026
1027 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
1028 Rule Morocco 1939 only - Sep 12 0:00 1:00 -
1029 Rule Morocco 1939 only - Nov 19 0:00 0 -
1030 Rule Morocco 1940 only - Feb 25 0:00 1:00 -
1031 Rule Morocco 1945 only - Nov 18 0:00 0 -
1032 Rule Morocco 1950 only - Jun 11 0:00 1:00 -
1033 Rule Morocco 1950 only - Oct 29 0:00 0 -
1034 Rule Morocco 1967 only - Jun 3 12:00 1:00 -
1035 Rule Morocco 1967 only - Oct 1 0:00 0 -
1036 Rule Morocco 1974 only - Jun 24 0:00 1:00 -
1037 Rule Morocco 1974 only - Sep 1 0:00 0 -
1038 Rule Morocco 1976 1977 - May 1 0:00 1:00 -
1039 Rule Morocco 1976 only - Aug 1 0:00 0 -
1040 Rule Morocco 1977 only - Sep 28 0:00 0 -
1041 Rule Morocco 1978 only - Jun 1 0:00 1:00 -
1042 Rule Morocco 1978 only - Aug 4 0:00 0 -
1043 Rule Morocco 2008 only - Jun 1 0:00 1:00 -
1044 Rule Morocco 2008 only - Sep 1 0:00 0 -
1045 Rule Morocco 2009 only - Jun 1 0:00 1:00 -
1046 Rule Morocco 2009 only - Aug 21 0:00 0 -
1047 Rule Morocco 2010 only - May 2 0:00 1:00 -
1048 Rule Morocco 2010 only - Aug 8 0:00 0 -
1049 Rule Morocco 2011 only - Apr 3 0:00 1:00 -
1050 Rule Morocco 2011 only - Jul 31 0:00 0 -
1051 Rule Morocco 2012 2013 - Apr lastSun 2:00 1:00 -
1052 Rule Morocco 2012 only - Jul 20 3:00 0 -
1053 Rule Morocco 2012 only - Aug 20 2:00 1:00 -
1054 Rule Morocco 2012 only - Sep 30 3:00 0 -
1055 Rule Morocco 2013 only - Jul 7 3:00 0 -
1056 Rule Morocco 2013 only - Aug 10 2:00 1:00 -
1057 Rule Morocco 2013 2018 - Oct lastSun 3:00 0 -
1058 Rule Morocco 2014 2018 - Mar lastSun 2:00 1:00 -
1059 Rule Morocco 2014 only - Jun 28 3:00 0 -
1060 Rule Morocco 2014 only - Aug 2 2:00 1:00 -
1061 Rule Morocco 2015 only - Jun 14 3:00 0 -
1062 Rule Morocco 2015 only - Jul 19 2:00 1:00 -
1063 Rule Morocco 2016 only - Jun 5 3:00 0 -
1064 Rule Morocco 2016 only - Jul 10 2:00 1:00 -
1065 Rule Morocco 2017 only - May 21 3:00 0 -
1066 Rule Morocco 2017 only - Jul 2 2:00 1:00 -
1067 Rule Morocco 2018 only - May 13 3:00 0 -
1068 Rule Morocco 2018 only - Jun 17 2:00 1:00 -
1069 Rule Morocco 2019 only - May 5 3:00 -1:00 -
1070 Rule Morocco 2019 only - Jun 9 2:00 0 -
1071 Rule Morocco 2020 only - Apr 19 3:00 -1:00 -
1072 Rule Morocco 2020 only - May 31 2:00 0 -
1073 Rule Morocco 2021 only - Apr 11 3:00 -1:00 -
1074 Rule Morocco 2021 only - May 16 2:00 0 -
1075 Rule Morocco 2022 only - Mar 27 3:00 -1:00 -
1076 Rule Morocco 2022 only - May 8 2:00 0 -
1077 Rule Morocco 2023 only - Mar 19 3:00 -1:00 -
1078 Rule Morocco 2023 only - Apr 23 2:00 0 -
1079 Rule Morocco 2024 only - Mar 10 3:00 -1:00 -
1080 Rule Morocco 2024 only - Apr 14 2:00 0 -
1081 Rule Morocco 2025 only - Feb 23 3:00 -1:00 -
1082 Rule Morocco 2025 only - Apr 6 2:00 0 -
1083 Rule Morocco 2026 only - Feb 15 3:00 -1:00 -
1084 Rule Morocco 2026 only - Mar 22 2:00 0 -
1085 Rule Morocco 2027 only - Feb 7 3:00 -1:00 -
1086 Rule Morocco 2027 only - Mar 14 2:00 0 -
1087 Rule Morocco 2028 only - Jan 23 3:00 -1:00 -
1088 Rule Morocco 2028 only - Mar 5 2:00 0 -
1089 Rule Morocco 2029 only - Jan 14 3:00 -1:00 -
1090 Rule Morocco 2029 only - Feb 18 2:00 0 -
1091 Rule Morocco 2029 only - Dec 30 3:00 -1:00 -
1092 Rule Morocco 2030 only - Feb 10 2:00 0 -
1093 Rule Morocco 2030 only - Dec 22 3:00 -1:00 -
1094 Rule Morocco 2031 only - Jan 26 2:00 0 -
1095 Rule Morocco 2031 only - Dec 14 3:00 -1:00 -
1096 Rule Morocco 2032 only - Jan 18 2:00 0 -
1097 Rule Morocco 2032 only - Nov 28 3:00 -1:00 -
1098 Rule Morocco 2033 only - Jan 9 2:00 0 -
1099 Rule Morocco 2033 only - Nov 20 3:00 -1:00 -
1100 Rule Morocco 2033 only - Dec 25 2:00 0 -
1101 Rule Morocco 2034 only - Nov 5 3:00 -1:00 -
1102 Rule Morocco 2034 only - Dec 17 2:00 0 -
1103 Rule Morocco 2035 only - Oct 28 3:00 -1:00 -
1104 Rule Morocco 2035 only - Dec 9 2:00 0 -
1105 Rule Morocco 2036 only - Oct 19 3:00 -1:00 -
1106 Rule Morocco 2036 only - Nov 23 2:00 0 -
1107 Rule Morocco 2037 only - Oct 4 3:00 -1:00 -
1108 Rule Morocco 2037 only - Nov 15 2:00 0 -
1109 Rule Morocco 2038 only - Sep 26 3:00 -1:00 -
1110 Rule Morocco 2038 only - Oct 31 2:00 0 -
1111 Rule Morocco 2039 only - Sep 18 3:00 -1:00 -
1112 Rule Morocco 2039 only - Oct 23 2:00 0 -
1113 Rule Morocco 2040 only - Sep 2 3:00 -1:00 -
1114 Rule Morocco 2040 only - Oct 14 2:00 0 -
1115 Rule Morocco 2041 only - Aug 25 3:00 -1:00 -
1116 Rule Morocco 2041 only - Sep 29 2:00 0 -
1117 Rule Morocco 2042 only - Aug 10 3:00 -1:00 -
1118 Rule Morocco 2042 only - Sep 21 2:00 0 -
1119 Rule Morocco 2043 only - Aug 2 3:00 -1:00 -
1120 Rule Morocco 2043 only - Sep 13 2:00 0 -
1121 Rule Morocco 2044 only - Jul 24 3:00 -1:00 -
1122 Rule Morocco 2044 only - Aug 28 2:00 0 -
1123 Rule Morocco 2045 only - Jul 9 3:00 -1:00 -
1124 Rule Morocco 2045 only - Aug 20 2:00 0 -
1125 Rule Morocco 2046 only - Jul 1 3:00 -1:00 -
1126 Rule Morocco 2046 only - Aug 5 2:00 0 -
1127 Rule Morocco 2047 only - Jun 23 3:00 -1:00 -
1128 Rule Morocco 2047 only - Jul 28 2:00 0 -
1129 Rule Morocco 2048 only - Jun 7 3:00 -1:00 -
1130 Rule Morocco 2048 only - Jul 19 2:00 0 -
1131 Rule Morocco 2049 only - May 30 3:00 -1:00 -
1132 Rule Morocco 2049 only - Jul 4 2:00 0 -
1133 Rule Morocco 2050 only - May 15 3:00 -1:00 -
1134 Rule Morocco 2050 only - Jun 26 2:00 0 -
1135 Rule Morocco 2051 only - May 7 3:00 -1:00 -
1136 Rule Morocco 2051 only - Jun 18 2:00 0 -
1137 Rule Morocco 2052 only - Apr 28 3:00 -1:00 -
1138 Rule Morocco 2052 only - Jun 2 2:00 0 -
1139 Rule Morocco 2053 only - Apr 13 3:00 -1:00 -
1140 Rule Morocco 2053 only - May 25 2:00 0 -
1141 Rule Morocco 2054 only - Apr 5 3:00 -1:00 -
1142 Rule Morocco 2054 only - May 10 2:00 0 -
1143 Rule Morocco 2055 only - Mar 28 3:00 -1:00 -
1144 Rule Morocco 2055 only - May 2 2:00 0 -
1145 Rule Morocco 2056 only - Mar 12 3:00 -1:00 -
1146 Rule Morocco 2056 only - Apr 23 2:00 0 -
1147 Rule Morocco 2057 only - Mar 4 3:00 -1:00 -
1148 Rule Morocco 2057 only - Apr 8 2:00 0 -
1149 Rule Morocco 2058 only - Feb 17 3:00 -1:00 -
1150 Rule Morocco 2058 only - Mar 31 2:00 0 -
1151 Rule Morocco 2059 only - Feb 9 3:00 -1:00 -
1152 Rule Morocco 2059 only - Mar 23 2:00 0 -
1153 Rule Morocco 2060 only - Feb 1 3:00 -1:00 -
1154 Rule Morocco 2060 only - Mar 7 2:00 0 -
1155 Rule Morocco 2061 only - Jan 16 3:00 -1:00 -
1156 Rule Morocco 2061 only - Feb 27 2:00 0 -
1157 Rule Morocco 2062 only - Jan 8 3:00 -1:00 -
1158 Rule Morocco 2062 only - Feb 12 2:00 0 -
1159 Rule Morocco 2062 only - Dec 31 3:00 -1:00 -
1160 Rule Morocco 2063 only - Feb 4 2:00 0 -
1161 Rule Morocco 2063 only - Dec 16 3:00 -1:00 -
1162 Rule Morocco 2064 only - Jan 27 2:00 0 -
1163 Rule Morocco 2064 only - Dec 7 3:00 -1:00 -
1164 Rule Morocco 2065 only - Jan 11 2:00 0 -
1165 Rule Morocco 2065 only - Nov 22 3:00 -1:00 -
1166 Rule Morocco 2066 only - Jan 3 2:00 0 -
1167 Rule Morocco 2066 only - Nov 14 3:00 -1:00 -
1168 Rule Morocco 2066 only - Dec 26 2:00 0 -
1169 Rule Morocco 2067 only - Nov 6 3:00 -1:00 -
1170 Rule Morocco 2067 only - Dec 11 2:00 0 -
1171 Rule Morocco 2068 only - Oct 21 3:00 -1:00 -
1172 Rule Morocco 2068 only - Dec 2 2:00 0 -
1173 Rule Morocco 2069 only - Oct 13 3:00 -1:00 -
1174 Rule Morocco 2069 only - Nov 17 2:00 0 -
1175 Rule Morocco 2070 only - Oct 5 3:00 -1:00 -
1176 Rule Morocco 2070 only - Nov 9 2:00 0 -
1177 Rule Morocco 2071 only - Sep 20 3:00 -1:00 -
1178 Rule Morocco 2071 only - Nov 1 2:00 0 -
1179 Rule Morocco 2072 only - Sep 11 3:00 -1:00 -
1180 Rule Morocco 2072 only - Oct 16 2:00 0 -
1181 Rule Morocco 2073 only - Aug 27 3:00 -1:00 -
1182 Rule Morocco 2073 only - Oct 8 2:00 0 -
1183 Rule Morocco 2074 only - Aug 19 3:00 -1:00 -
1184 Rule Morocco 2074 only - Sep 30 2:00 0 -
1185 Rule Morocco 2075 only - Aug 11 3:00 -1:00 -
1186 Rule Morocco 2075 only - Sep 15 2:00 0 -
1187 Rule Morocco 2076 only - Jul 26 3:00 -1:00 -
1188 Rule Morocco 2076 only - Sep 6 2:00 0 -
1189 Rule Morocco 2077 only - Jul 18 3:00 -1:00 -
1190 Rule Morocco 2077 only - Aug 22 2:00 0 -
1191 Rule Morocco 2078 only - Jul 10 3:00 -1:00 -
1192 Rule Morocco 2078 only - Aug 14 2:00 0 -
1193 Rule Morocco 2079 only - Jun 25 3:00 -1:00 -
1194 Rule Morocco 2079 only - Aug 6 2:00 0 -
1195 Rule Morocco 2080 only - Jun 16 3:00 -1:00 -
1196 Rule Morocco 2080 only - Jul 21 2:00 0 -
1197 Rule Morocco 2081 only - Jun 1 3:00 -1:00 -
1198 Rule Morocco 2081 only - Jul 13 2:00 0 -
1199 Rule Morocco 2082 only - May 24 3:00 -1:00 -
1200 Rule Morocco 2082 only - Jun 28 2:00 0 -
1201 Rule Morocco 2083 only - May 16 3:00 -1:00 -
1202 Rule Morocco 2083 only - Jun 20 2:00 0 -
1203 Rule Morocco 2084 only - Apr 30 3:00 -1:00 -
1204 Rule Morocco 2084 only - Jun 11 2:00 0 -
1205 Rule Morocco 2085 only - Apr 22 3:00 -1:00 -
1206 Rule Morocco 2085 only - May 27 2:00 0 -
1207 Rule Morocco 2086 only - Apr 14 3:00 -1:00 -
1208 Rule Morocco 2086 only - May 19 2:00 0 -
1209 Rule Morocco 2087 only - Mar 30 3:00 -1:00 -
1210 Rule Morocco 2087 only - May 11 2:00 0 -
1211 # For dates after the somewhat-arbitrary cutoff of 2087, assume that
1212 # Morocco will no longer observe DST. At some point this table will
1213 # need to be extended, though quite possibly Morocco will change the
1214 # rules first.
1215
1216 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1217 Zone Africa/Casablanca -0:30:20 - LMT 1913 Oct 26
1218 0:00 Morocco %z 1984 Mar 16
1219 1:00 - %z 1986
1220 0:00 Morocco %z 2018 Oct 28 3:00
1221 1:00 Morocco %z
1222
1223 # Western Sahara
1224 #
1225 # From Gwillim Law (2013-10-22):
1226 # A correspondent who is usually well informed about time zone matters
1227 # ... says that Western Sahara observes daylight saving time, just as
1228 # Morocco does.
1229 #
1230 # From Paul Eggert (2013-10-23):
1231 # Assume that this has been true since Western Sahara switched to GMT,
1232 # since most of it was then controlled by Morocco.
1233
1234 Zone Africa/El_Aaiun -0:52:48 - LMT 1934 Jan # El Aain
1235 -1:00 - %z 1976 Apr 14
1236 0:00 Morocco %z 2018 Oct 28 3:00
1237 1:00 Morocco %z
1238
1239 # Mozambique
1240 #
1241 # From Tim Parenti (2024-07-01):
1242 # For timestamps before Mozambique's independence, see commentary for
1243 # Europe/Lisbon.
1244 #
1245 # From Paul Eggert (2024-05-24):
1246 # The London Gazette, 1903-04-03, page 2245, says that
1247 # as of 1903-03-03 a time ball at the port of Loureno Marques
1248 # (as Maputo was then called) was dropped daily at 13:00:00 LMT,
1249 # corresponding to 22:49:41.7 GMT, so local time was +02:10:18.3.
1250 # Conversely, the newspaper South Africa, 1909-02-09, page 321,
1251 # says the port had just installed an apparatus that communicated
1252 # "from the controlling clock in the new Observatory at Reuben Point ...
1253 # exact mean South African time, i.e., 30 deg., or 2 hours East of Greenwich".
1254 # Although Shanks gives 1903-03-01 for the transition to CAT,
1255 # evidently the port transitioned to CAT after 1903-03-03 but before
1256 # the Portuguese legal transition of 1912-01-01 (see Europe/Lisbon commentary).
1257 # For lack of better info, list 1909 as the transition date.
1258 #
1259 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1260 #STDOFF 2:10:18.3
1261 Zone Africa/Maputo 2:10:18 - LMT 1909
1262 2:00 - CAT
1263
1264 # Namibia
1265
1266 # From Arthur David Olson (2017-08-09):
1267 # The text of the "Namibia Time Act, 1994" is available online at
1268 # www.lac.org.na/laws/1994/811.pdf
1269 # and includes this nugget:
1270 # Notwithstanding the provisions of subsection (2) of section 1, the
1271 # first winter period after the commencement of this Act shall
1272 # commence at OOhOO on Monday 21 March 1994 and shall end at 02h00 on
1273 # Sunday 4 September 1994.
1274
1275 # From Michael Deckers (2017-04-06):
1276 # ... both summer and winter time are called "standard"
1277 # (which differs from the use in Ireland) ...
1278
1279 # From Petronella Sibeene (2007-03-30):
1280 # http://allafrica.com/stories/200703300178.html
1281 # While the entire country changes its time, Katima Mulilo and other
1282 # settlements in Caprivi unofficially will not because the sun there
1283 # rises and sets earlier compared to other regions. Chief of
1284 # Forecasting Riaan van Zyl explained that the far eastern parts of
1285 # the country are close to 40 minutes earlier in sunrise than the rest
1286 # of the country.
1287 #
1288 # From Paul Eggert (2017-02-22):
1289 # Although the Zambezi Region (formerly known as Caprivi) informally
1290 # observes Botswana time, we have no details about historical practice.
1291 # In the meantime people there can use Africa/Gaborone.
1292 # See: Immanuel S. The Namibian. 2017-02-23.
1293 # https://www.namibian.com.na/51480/read/Time-change-divides-lawmakers
1294
1295 # From Steffen Thorsen (2017-08-09):
1296 # Namibia is going to change their time zone to what is now their DST:
1297 # https://www.newera.com.na/2017/02/23/namibias-winter-time-might-be-repealed/
1298 # This video is from the government decision:
1299 # https://www.nbc.na/news/na-passes-namibia-time-bill-repealing-1994-namibia-time-act.8665
1300 # We have made the assumption so far that they will change their time zone at
1301 # the same time they would normally start DST, the first Sunday in September:
1302 # https://www.timeanddate.com/news/time/namibia-new-time-zone.html
1303
1304 # From Paul Eggert (2017-04-09):
1305 # Before the change, summer and winter time were both standard time legally.
1306 # However in common parlance, winter time was considered to be DST. See, e.g.:
1307 # http://www.nbc.na/news/namibias-winter-time-could-be-scrapped.2706
1308 # https://zone.my.na/news/times-are-changing-in-namibia
1309 # https://www.newera.com.na/2017/02/23/namibias-winter-time-might-be-repealed/
1310 # Use plain "WAT" and "CAT" for the time zone abbreviations, to be compatible
1311 # with Namibia's neighbors.
1312
1313 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
1314 # Vanguard section, for zic and other parsers that support negative DST.
1315 Rule Namibia 1994 only - Mar 21 0:00 -1:00 WAT
1316 Rule Namibia 1994 2017 - Sep Sun>=1 2:00 0 CAT
1317 Rule Namibia 1995 2017 - Apr Sun>=1 2:00 -1:00 WAT
1318 # Rearguard section, for parsers lacking negative DST; see ziguard.awk.
1319 #Rule Namibia 1994 only - Mar 21 0:00 0 WAT
1320 #Rule Namibia 1994 2017 - Sep Sun>=1 2:00 1:00 CAT
1321 #Rule Namibia 1995 2017 - Apr Sun>=1 2:00 0 WAT
1322 # End of rearguard section.
1323
1324 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1325 Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8
1326 1:30 - %z 1903 Mar
1327 2:00 - SAST 1942 Sep 20 2:00
1328 2:00 1:00 SAST 1943 Mar 21 2:00
1329 2:00 - SAST 1990 Mar 21 # independence
1330 # Vanguard section, for zic and other parsers that support negative DST.
1331 2:00 Namibia %s
1332 # Rearguard section, for parsers lacking negative DST; see ziguard.awk.
1333 # 2:00 - CAT 1994 Mar 21 0:00
1334 # From Paul Eggert (2017-04-07):
1335 # The official date of the 2017 rule change was 2017-10-24. See:
1336 # http://www.lac.org.na/laws/annoSTAT/Namibian%20Time%20Act%209%20of%202017.pdf
1337 # 1:00 Namibia %s 2017 Oct 24
1338 # 2:00 - CAT
1339 # End of rearguard section.
1340
1341 # Niger
1342 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1343 Zone Africa/Niamey 0:08:28 - LMT 1912
1344 -1:00 - -01 1934 Feb 26
1345 0:00 - GMT 1960
1346 1:00 - WAT
1347
1348 # Nigeria
1349
1350 # From P Chan (2020-12-03):
1351 # GMT was adopted as the standard time of Lagos on 1905-07-01.
1352 # Lagos Weekly Record, 1905-06-24, p 3
1353 # http://ddsnext.crl.edu/titles/31558#?c=0&m=668&s=0&cv=2&r=0&xywh=1446,5221,1931,1235
1354 # says "It is officially notified that on and after the 1st of July 1905
1355 # Greenwich Mean Solar Time will be adopted throughout the Colony and
1356 # Protectorate, and that it will be necessary to put all clocks 13 minutes and
1357 # 35 seconds back, recording local mean time."
1358 #
1359 # It seemed that Lagos returned to LMT on 1908-07-01.
1360 # [The Lagos Standard], 1908-07-01, p 5
1361 # http://ddsnext.crl.edu/titles/31556#?c=0&m=78&s=0&cv=4&r=0&xywh=-92,3590,3944,2523
1362 # says "Scarcely have the people become accustomed to this new time, when
1363 # another official notice has now appeared announcing that from and after the
1364 # 1st July next, return will be made to local mean time."
1365 #
1366 # From P Chan (2020-11-27):
1367 # On 1914-01-01, standard time of GMT+0:30 was adopted for the unified Nigeria.
1368 # Colonial Reports - Annual. No. 878. Nigeria. Report for 1914. (April 1916),
1369 # p 27
1370 # https://libsysdigi.library.illinois.edu/ilharvest/Africana/Books2011-05/3064634/3064634_1914/3064634_1914_opt.pdf#page=27
1371 # "On January 1st [1914], a universal standard time for Nigeria was adopted,
1372 # viz., half an hour fast on Greenwich mean time, corresponding to the meridian
1373 # 7 30' E. long."
1374 # Lloyd's Register of Shipping (1915) says "Hitherto the time observed in Lagos
1375 # was the local mean time. On 1st January, 1914, standard time for the whole of
1376 # Nigeria was introduced ... Lagos time has been advanced about 16 minutes
1377 # accordingly."
1378 #
1379 # In 1919, standard time was changed to GMT+1.
1380 # Interpretation Ordinance (Cap 2)
1381 # The Laws of Nigeria, Containing the Ordinances of Nigeria, in Force on the
1382 # 1st Day of January, 1923, Vol.I [p 16]
1383 # https://books.google.com/books?id=BOMrAQAAMAAJ&pg=PA16
1384 # "The expression 'Standard time' means standard time as used in Nigeria:
1385 # namely, 60 minutes in advance of Greenwich mean time. (As amended by 18 of
1386 # 1919, s. 2.)"
1387 # From Tim Parenti (2020-12-10):
1388 # The Lagos Weekly Record, 1919-09-20, p 3 details discussion on the first
1389 # reading of this Bill by the Legislative Council of the Colony of Nigeria on
1390 # Thursday 1919-08-28:
1391 # 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
1392 # "The proposal is that the Globe should be divided into twelve zones East and
1393 # West of Greenwich, of one hour each, Nigeria falling into the zone with a
1394 # standard of one hour fast on Greenwich Mean Time. Nigeria standard time is
1395 # now 30 minutes in advance of Greenwich Mean Time ... according to the new
1396 # proposal, standard time will be advanced another 30 minutes". It was further
1397 # proposed that the firing of the time guns likewise be adjusted by 30 minutes
1398 # to compensate.
1399 # From Tim Parenti (2020-12-10), per P Chan (2020-12-11):
1400 # The text of Ordinance 18 of 1919, published in Nigeria Gazette, Vol 6, No 52,
1401 # shows that the change was assented to the following day and took effect "on
1402 # the 1st day of September, 1919."
1403 # Nigeria Gazette and Supplements 1919 Jan-Dec, Reference: 73266B-40,
1404 # img 245-246
1405 # https://microform.digital/boa/collections/77/volumes/539/nigeria-lagos-1887-1919
1406
1407 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1408 Zone Africa/Lagos 0:13:35 - LMT 1905 Jul 1
1409 0:00 - GMT 1908 Jul 1
1410 0:13:35 - LMT 1914 Jan 1
1411 0:30 - %z 1919 Sep 1
1412 1:00 - WAT
1413
1414 # Runion
1415 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1416 Zone Indian/Reunion 3:41:52 - LMT 1911 Jun # Saint-Denis
1417 4:00 - +04
1418 #
1419 # Scattered Islands (les parses) administered from Runion are as follows.
1420 # The following information about them is taken from
1421 # les parses (<http://www.outre-mer.gouv.fr/domtom/ile.htm>, 1997-07-22,
1422 # in French; no longer available as of 1999-08-17).
1423 # We have no info about their time zone histories.
1424 #
1425 # Bassas da India - uninhabited
1426 # Europa Island - inhabited from 1905 to 1910 by two families
1427 # Glorioso Is - inhabited until at least 1958
1428 # Juan de Nova - uninhabited
1429 # Tromelin - inhabited until at least 1958
1430
1431 # Rwanda
1432 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1433 Zone Africa/Kigali 2:00:16 - LMT 1935 Jun
1434 2:00 - CAT
1435
1436 # St Helena
1437 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1438 Zone Atlantic/St_Helena -0:22:48 - LMT 1890 # Jamestown
1439 -0:22:48 - JMT 1951 # Jamestown Mean Time
1440 0:00 - GMT
1441
1442 # So Tom and Prncipe
1443
1444 # See Europe/Lisbon for info about the 1912 transition.
1445
1446 # From Steffen Thorsen (2018-01-08):
1447 # Multiple sources tell that So Tom changed from UTC to UTC+1 as
1448 # they entered the year 2018.
1449 # From Michael Deckers (2018-01-08):
1450 # the switch is from 01:00 to 02:00 ... [Decree No. 25/2017]
1451 # http://www.mnec.gov.st/index.php/publicacoes/documentos/file/90-decreto-lei-n-25-2017
1452
1453 # From Vadim Nasardinov (2018-12-29):
1454 # So Tom and Prncipe is about to do the following on Jan 1, 2019:
1455 # https://www.stp-press.st/2018/12/05/governo-jesus-ja-decidiu-repor-hora-legal-sao-tomense/
1456 #
1457 # From Michael Deckers (2018-12-30):
1458 # https://www.legis-palop.org/download.jsp?idFile=102818
1459 # ... [The legal time of the country, which coincides with universal
1460 # coordinated time, will be reinstituted at 2 o'clock on day 1 of January, 2019.]
1461
1462 Zone Africa/Sao_Tome 0:26:56 - LMT 1884
1463 #STDOFF -0:36:44.68
1464 -0:36:45 - LMT 1912 Jan 1 00:00u # Lisbon MT
1465 0:00 - GMT 2018 Jan 1 01:00
1466 1:00 - WAT 2019 Jan 1 02:00
1467 0:00 - GMT
1468
1469 # Senegal
1470 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1471 Zone Africa/Dakar -1:09:44 - LMT 1912
1472 -1:00 - -01 1941 Jun
1473 0:00 - GMT
1474
1475 # Seychelles
1476 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1477 Zone Indian/Mahe 3:41:48 - LMT 1907 Jan 1 # Victoria
1478 4:00 - +04
1479 # From Paul Eggert (2001-05-30):
1480 # Aldabra, Farquhar, and Desroches, originally dependencies of the
1481 # Seychelles, were transferred to the British Indian Ocean Territory
1482 # in 1965 and returned to Seychelles control in 1976. We don't know
1483 # whether this affected their time zone, so omit this for now.
1484 # Possibly the islands were uninhabited.
1485
1486 # Sierra Leone
1487 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
1488 Rule SL 1932 only - Dec 1 0:00 0:20 -0040
1489 Rule SL 1933 1938 - Mar 31 24:00 0 -01
1490 Rule SL 1933 1939 - Aug 31 24:00 0:20 -0040
1491 Rule SL 1939 only - May 31 24:00 0 -01
1492
1493 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1494 Zone Africa/Freetown -0:53:00 - LMT 1882
1495 -0:53:00 - FMT 1913 Jul 1 # Freetown MT
1496 -1:00 SL %s 1939 Sep 5
1497 -1:00 - -01 1941 Dec 6 24:00
1498 0:00 - GMT
1499
1500 # Somalia
1501 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1502 Zone Africa/Mogadishu 3:01:28 - LMT 1893 Nov
1503 3:00 - EAT 1931
1504 2:30 - +0230 1957
1505 3:00 - EAT
1506
1507 # South Africa
1508 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
1509 Rule SA 1942 1943 - Sep Sun>=15 2:00 1:00 -
1510 Rule SA 1943 1944 - Mar Sun>=15 2:00 0 -
1511 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1512 Zone Africa/Johannesburg 1:52:00 - LMT 1892 Feb 8
1513 1:30 - SAST 1903 Mar
1514 2:00 SA SAST
1515 #
1516 # Marion and Prince Edward Is
1517 # scientific station since 1947
1518 # no information
1519
1520 # Sudan
1521
1522 # From <http://www.sunanews.net/sn13jane.html>
1523 # Sudan News Agency (2000-01-13),
1524 # also reported by Michal De Beukelaer-Dossche via Steffen Thorsen:
1525 # Clocks will be moved ahead for 60 minutes all over the Sudan as of noon
1526 # Saturday.... This was announced Thursday by Caretaker State Minister for
1527 # Manpower Abdul-Rahman Nur-Eddin.
1528
1529 # From Ahmed Atyya, National Telecommunications Corp. (NTC), Sudan (2017-10-17):
1530 # ... the Republic of Sudan is going to change the time zone from (GMT+3:00)
1531 # to (GMT+ 2:00) starting from Wednesday 1 November 2017.
1532 #
1533 # From Paul Eggert (2017-10-18):
1534 # A scanned copy (in Arabic) of Cabinet Resolution No. 352 for the
1535 # year 2017 can be found as an attachment in email today from Yahia
1536 # Abdalla of NTC, archived at:
1537 # https://mm.icann.org/pipermail/tz/2017-October/025333.html
1538
1539 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
1540 Rule Sudan 1970 only - May 1 0:00 1:00 S
1541 Rule Sudan 1970 1985 - Oct 15 0:00 0 -
1542 Rule Sudan 1971 only - Apr 30 0:00 1:00 S
1543 Rule Sudan 1972 1985 - Apr lastSun 0:00 1:00 S
1544 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1545 Zone Africa/Khartoum 2:10:08 - LMT 1931
1546 2:00 Sudan CA%sT 2000 Jan 15 12:00
1547 3:00 - EAT 2017 Nov 1
1548 2:00 - CAT
1549
1550 # South Sudan
1551
1552 # From Steffen Thorsen (2021-01-18):
1553 # "South Sudan will change its time zone by setting the clock back 1
1554 # hour on February 1, 2021...."
1555 # from https://eyeradio.org/south-sudan-adopts-new-time-zone-makuei/
1556
1557 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1558 Zone Africa/Juba 2:06:28 - LMT 1931
1559 2:00 Sudan CA%sT 2000 Jan 15 12:00
1560 3:00 - EAT 2021 Feb 1 00:00
1561 2:00 - CAT
1562
1563 # Tanzania
1564 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1565 Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931
1566 3:00 - EAT 1948
1567 2:45 - +0245 1961
1568 3:00 - EAT
1569
1570 # Togo
1571 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1572 Zone Africa/Lome 0:04:52 - LMT 1893
1573 0:00 - GMT
1574
1575 # Tunisia
1576
1577 # From Gwillim Law (2005-04-30):
1578 # My correspondent, Risto Nyknen, has alerted me to another adoption of DST,
1579 # this time in Tunisia. According to Yahoo France News
1580 # <http://fr.news.yahoo.com/050426/5/4dumk.html>, in a story attributed to AP
1581 # and dated 2005-04-26, "Tunisia has decided to advance its official time by
1582 # one hour, starting on Sunday, May 1. Henceforth, Tunisian time will be
1583 # UTC+2 instead of UTC+1. The change will take place at 23:00 UTC next
1584 # Saturday." (My translation)
1585 #
1586 # From Oscar van Vlijmen (2005-05-02):
1587 # La Presse, the first national daily newspaper ...
1588 # http://www.lapresse.tn/archives/archives280405/actualites/lheure.html
1589 # ... DST for 2005: on: Sun May 1 0h standard time, off: Fri Sept. 30,
1590 # 1h standard time.
1591 #
1592 # From Atef Loukil (2006-03-28):
1593 # The daylight saving time will be the same each year:
1594 # Beginning : the last Sunday of March at 02:00
1595 # Ending : the last Sunday of October at 03:00 ...
1596 # http://www.tap.info.tn/en/index.php?option=com_content&task=view&id=1188&Itemid=50
1597
1598 # From Steffen Thorsen (2009-03-16):
1599 # According to several news sources, Tunisia will not observe DST this year.
1600 # (Arabic)
1601 # http://www.elbashayer.com/?page=viewn&nid=42546
1602 # https://www.babnet.net/kiwidetail-15295.asp
1603 #
1604 # We have also confirmed this with the US embassy in Tunisia.
1605 # We have a wrap-up about this on the following page:
1606 # https://www.timeanddate.com/news/time/tunisia-cancels-dst-2009.html
1607
1608 # From Alexander Krivenyshev (2009-03-17):
1609 # Here is a link to Tunis Afrique Presse News Agency
1610 #
1611 # Standard time to be kept the whole year long (tap.info.tn):
1612 #
1613 # (in English)
1614 # http://www.tap.info.tn/en/index.php?option=com_content&task=view&id=26813&Itemid=157
1615 #
1616 # (in Arabic)
1617 # http://www.tap.info.tn/ar/index.php?option=com_content&task=view&id=61240&Itemid=1
1618
1619 # From Arthur David Olson (2009-03-18):
1620 # The Tunis Afrique Presse News Agency notice contains this: "This measure is
1621 # due to the fact that the fasting month of Ramadan coincides with the period
1622 # concerned by summer time. Therefore, the standard time will be kept
1623 # unchanged the whole year long." So foregoing DST seems to be an exception
1624 # (albeit one that may be repeated in the future).
1625
1626 # From Alexander Krivenyshev (2010-03-27):
1627 # According to some news reports Tunis confirmed not to use DST in 2010
1628 #
1629 # (translation):
1630 # "The Tunisian government has decided to abandon DST, which was scheduled on
1631 # Sunday...
1632 # Tunisian authorities had suspended the DST for the first time last year also
1633 # coincided with the month of Ramadan..."
1634 #
1635 # (in Arabic)
1636 # http://www.moheet.com/show_news.aspx?nid=358861&pg=1
1637 # http://www.almadenahnews.com/newss/news.php?c=118&id=38036
1638 # http://www.worldtimezone.com/dst_news/dst_news_tunis02.html
1639
1640 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S
1641 Rule Tunisia 1939 only - Apr 15 23:00s 1:00 S
1642 Rule Tunisia 1939 only - Nov 18 23:00s 0 -
1643 Rule Tunisia 1940 only - Feb 25 23:00s 1:00 S
1644 Rule Tunisia 1941 only - Oct 6 0:00 0 -
1645 Rule Tunisia 1942 only - Mar 9 0:00 1:00 S
1646 Rule Tunisia 1942 only - Nov 2 3:00 0 -
1647 Rule Tunisia 1943 only - Mar 29 2:00 1:00 S
1648 Rule Tunisia 1943 only - Apr 17 2:00 0 -
1649 Rule Tunisia 1943 only - Apr 25 2:00 1:00 S
1650 Rule Tunisia 1943 only - Oct 4 2:00 0 -
1651 Rule Tunisia 1944 1945 - Apr Mon>=1 2:00 1:00 S
1652 Rule Tunisia 1944 only - Oct 8 0:00 0 -
1653 Rule Tunisia 1945 only - Sep 16 0:00 0 -
1654 Rule Tunisia 1977 only - Apr 30 0:00s 1:00 S
1655 Rule Tunisia 1977 only - Sep 24 0:00s 0 -
1656 Rule Tunisia 1978 only - May 1 0:00s 1:00 S
1657 Rule Tunisia 1978 only - Oct 1 0:00s 0 -
1658 Rule Tunisia 1988 only - Jun 1 0:00s 1:00 S
1659 Rule Tunisia 1988 1990 - Sep lastSun 0:00s 0 -
1660 Rule Tunisia 1989 only - Mar 26 0:00s 1:00 S
1661 Rule Tunisia 1990 only - May 1 0:00s 1:00 S
1662 Rule Tunisia 2005 only - May 1 0:00s 1:00 S
1663 Rule Tunisia 2005 only - Sep 30 1:00s 0 -
1664 Rule Tunisia 2006 2008 - Mar lastSun 2:00s 1:00 S
1665 Rule Tunisia 2006 2008 - Oct lastSun 2:00s 0 -
1666
1667 # See Europe/Paris commentary for PMT-related transitions.
1668 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1669 Zone Africa/Tunis 0:40:44 - LMT 1881 May 12
1670 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time
1671 1:00 Tunisia CE%sT
1672
1673 # Uganda
1674 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1675 Zone Africa/Kampala 2:09:40 - LMT 1928 Jul
1676 3:00 - EAT 1930
1677 2:30 - +0230 1948
1678 2:45 - +0245 1957
1679 3:00 - EAT
1680
1681 # Zambia
1682 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1683 Zone Africa/Lusaka 1:53:08 - LMT 1903 Mar
1684 2:00 - CAT
1685
1686 # Zimbabwe
1687 # Zone NAME STDOFF RULES FORMAT [UNTIL]
1688 Zone Africa/Harare 2:04:12 - LMT 1903 Mar
1689 2:00 - CAT
1690
1691