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africa revision 1.1.1.35
      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 # Cape Verde / Cabo Verde
    105 #
    106 # From Tim Parenti (2024-07-01), per Paul Eggert (2018-02-16):
    107 # For timestamps before independence, see commentary for Europe/Lisbon.
    108 # Shanks gives 1907 instead for the transition to -02.
    109 #
    110 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
    111 Zone Atlantic/Cape_Verde -1:34:04 -	LMT	1912 Jan 01  2:00u # Praia
    112 			-2:00	-	%z	1942 Sep
    113 			-2:00	1:00	%z	1945 Oct 15
    114 			-2:00	-	%z	1975 Nov 25  2:00
    115 			-1:00	-	%z
    116 
    117 # Chad
    118 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
    119 Zone	Africa/Ndjamena	1:00:12 -	LMT	1912 Jan  1 # N'Djamena
    120 			1:00	-	WAT	1979 Oct 14
    121 			1:00	1:00	WAST	1980 Mar  8
    122 			1:00	-	WAT
    123 
    124 # Burkina Faso
    125 # Cte d'Ivoire (Ivory Coast)
    126 # The Gambia
    127 # Ghana
    128 # Guinea
    129 # Iceland
    130 # Mali
    131 # Mauritania
    132 # St Helena
    133 # Senegal
    134 # Sierra Leone
    135 # Togo
    136 
    137 # The other parts of the St Helena territory are similar:
    138 #	Tristan da Cunha: on GMT, say Whitman and the CIA
    139 #	Ascension: on GMT, say the USNO (1995-12-21) and the CIA
    140 #	Gough (scientific station since 1955; sealers wintered previously):
    141 #		on GMT, says the CIA
    142 #	Inaccessible, Nightingale: uninhabited
    143 
    144 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
    145 Zone	Africa/Abidjan	-0:16:08 -	LMT	1912 Jan  1
    146 			 0:00	-	GMT
    147 
    148 ###############################################################################
    149 
    150 # Egypt
    151 
    152 # Milne says Cairo used 2:05:08.9, the local mean time of the Abbasizeh
    153 # observatory.  Milne also says that the official time for
    154 # Egypt was mean noon at the Great Pyramid, 2:04:30.5, but apparently this
    155 # did not apply to Cairo, Alexandria, or Port Said.
    156 
    157 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
    158 Rule	Egypt	1940	only	-	Jul	15	0:00	1:00	S
    159 Rule	Egypt	1940	only	-	Oct	 1	0:00	0	-
    160 Rule	Egypt	1941	only	-	Apr	15	0:00	1:00	S
    161 Rule	Egypt	1941	only	-	Sep	16	0:00	0	-
    162 Rule	Egypt	1942	1944	-	Apr	 1	0:00	1:00	S
    163 Rule	Egypt	1942	only	-	Oct	27	0:00	0	-
    164 Rule	Egypt	1943	1945	-	Nov	 1	0:00	0	-
    165 Rule	Egypt	1945	only	-	Apr	16	0:00	1:00	S
    166 Rule	Egypt	1957	only	-	May	10	0:00	1:00	S
    167 Rule	Egypt	1957	1958	-	Oct	 1	0:00	0	-
    168 Rule	Egypt	1958	only	-	May	 1	0:00	1:00	S
    169 Rule	Egypt	1959	1981	-	May	 1	1:00	1:00	S
    170 Rule	Egypt	1959	1965	-	Sep	30	3:00	0	-
    171 Rule	Egypt	1966	1994	-	Oct	 1	3:00	0	-
    172 Rule	Egypt	1982	only	-	Jul	25	1:00	1:00	S
    173 Rule	Egypt	1983	only	-	Jul	12	1:00	1:00	S
    174 Rule	Egypt	1984	1988	-	May	 1	1:00	1:00	S
    175 Rule	Egypt	1989	only	-	May	 6	1:00	1:00	S
    176 Rule	Egypt	1990	1994	-	May	 1	1:00	1:00	S
    177 # IATA (after 1990) says transitions are at 0:00.
    178 # Go with IATA starting in 1995, except correct 1995 entry from 09-30 to 09-29.
    179 
    180 # From Alexander Krivenyshev (2011-04-20):
    181 # "...Egypt's interim cabinet decided on Wednesday to cancel daylight
    182 # saving time after a poll posted on its website showed the majority of
    183 # Egyptians would approve the cancellation."
    184 #
    185 # Egypt to cancel daylight saving time
    186 # http://www.almasryalyoum.com/en/node/407168
    187 # or
    188 # http://www.worldtimezone.com/dst_news/dst_news_egypt04.html
    189 Rule	Egypt	1995	2010	-	Apr	lastFri	 0:00s	1:00	S
    190 Rule	Egypt	1995	2005	-	Sep	lastThu	24:00	0	-
    191 # From Steffen Thorsen (2006-09-19):
    192 # The Egyptian Gazette, issue 41,090 (2006-09-18), page 1, reports:
    193 # Egypt will turn back clocks by one hour at the midnight of Thursday
    194 # after observing the daylight saving time since May.
    195 # http://news.gom.com.eg/gazette/pdf/2006/09/18/01.pdf
    196 Rule	Egypt	2006	only	-	Sep	21	24:00	0	-
    197 # From Dirk Losch (2007-08-14):
    198 # I received a mail from an airline which says that the daylight
    199 # saving time in Egypt will end in the night of 2007-09-06 to 2007-09-07.
    200 # From Jesper Nrgaard Welen (2007-08-15): [The following agree:]
    201 # http://www.nentjes.info/Bill/bill5.htm
    202 # https://www.timeanddate.com/worldclock/city.html?n=53
    203 # From Steffen Thorsen (2007-09-04): The official information...:
    204 # http://www.sis.gov.eg/En/EgyptOnline/Miscellaneous/000002/0207000000000000001580.htm
    205 Rule	Egypt	2007	only	-	Sep	Thu>=1	24:00	0	-
    206 # From Abdelrahman Hassan (2007-09-06):
    207 # Due to the Hijri (lunar Islamic calendar) year being 11 days shorter
    208 # than the year of the Gregorian calendar, Ramadan shifts earlier each
    209 # year. This year it will be observed September 13 (September is quite
    210 # hot in Egypt), and the idea is to make fasting easier for workers by
    211 # shifting business hours one hour out of daytime heat. Consequently,
    212 # unless discontinued, next DST may end Thursday 28 August 2008.
    213 # From Paul Eggert (2007-08-17):
    214 # For lack of better info, assume the new rule is last Thursday in August.
    215 
    216 # From Petr Machata (2009-04-06):
    217 # The following appeared in Red Hat bugzilla[1] (edited):
    218 #
    219 # > $ zdump -v /usr/share/zoneinfo/Africa/Cairo | grep 2009
    220 # > /usr/share/zoneinfo/Africa/Cairo  Thu Apr 23 21:59:59 2009 UTC = Thu =
    221 # Apr 23
    222 # > 23:59:59 2009 EET isdst=0 gmtoff=7200
    223 # > /usr/share/zoneinfo/Africa/Cairo  Thu Apr 23 22:00:00 2009 UTC = Fri =
    224 # Apr 24
    225 # > 01:00:00 2009 EEST isdst=1 gmtoff=10800
    226 # > /usr/share/zoneinfo/Africa/Cairo  Thu Aug 27 20:59:59 2009 UTC = Thu =
    227 # Aug 27
    228 # > 23:59:59 2009 EEST isdst=1 gmtoff=10800
    229 # > /usr/share/zoneinfo/Africa/Cairo  Thu Aug 27 21:00:00 2009 UTC = Thu =
    230 # Aug 27
    231 # > 23:00:00 2009 EET isdst=0 gmtoff=7200
    232 #
    233 # > end date should be Thu Sep 24 2009 (Last Thursday in September at 23:59=
    234 # :59)
    235 # > http://support.microsoft.com/kb/958729/
    236 #
    237 # timeanddate[2] and another site I've found[3] also support that.
    238 #
    239 # [1] https://bugzilla.redhat.com/show_bug.cgi?id=492263
    240 # [2] https://www.timeanddate.com/worldclock/clockchange.html?n=53
    241 # [3] https://wwp.greenwichmeantime.com/time-zone/africa/egypt/
    242 
    243 # From Arthur David Olson (2009-04-20):
    244 # In 2009 (and for the next several years), Ramadan ends before the fourth
    245 # Thursday in September; Egypt is expected to revert to the last Thursday
    246 # in September.
    247 
    248 # From Steffen Thorsen (2009-08-11):
    249 # We have been able to confirm the August change with the Egyptian Cabinet
    250 # Information and Decision Support Center:
    251 # https://www.timeanddate.com/news/time/egypt-dst-ends-2009.html
    252 #
    253 # The Middle East News Agency
    254 # https://www.mena.org.eg/index.aspx
    255 # also reports "Egypt starts winter time on August 21"
    256 # today in article numbered "71, 11/08/2009 12:25 GMT."
    257 # Only the title above is available without a subscription to their service,
    258 # and can be found by searching for "winter" in their search engine
    259 # (at least today).
    260 
    261 # From Alexander Krivenyshev (2010-07-20):
    262 # According to News from Egypt - Al-Masry Al-Youm Egypt's cabinet has
    263 # decided that Daylight Saving Time will not be used in Egypt during
    264 # Ramadan.
    265 #
    266 # Arabic translation:
    267 # "Clocks to go back during Ramadan - and then forward again"
    268 # http://www.almasryalyoum.com/en/news/clocks-go-back-during-ramadan-and-then-forward-again
    269 # http://www.worldtimezone.com/dst_news/dst_news_egypt02.html
    270 
    271 # From Ahmad El-Dardiry (2014-05-07):
    272 # Egypt is to change back to Daylight system on May 15
    273 # http://english.ahram.org.eg/NewsContent/1/64/100735/Egypt/Politics-/Egypts-government-to-reapply-daylight-saving-time-.aspx
    274 
    275 # From Gunther Vermier (2014-05-13):
    276 # our Egypt office confirms that the change will be at 15 May "midnight" (24:00)
    277 
    278 # From Imed Chihi (2014-06-04):
    279 # We have finally "located" a precise official reference about the DST changes
    280 # in Egypt.  The Ministers Cabinet decision is explained at
    281 # http://www.cabinet.gov.eg/Media/CabinetMeetingsDetails.aspx?id=347 ...
    282 # [T]his (Arabic) site is not accessible outside Egypt, but the page ...
    283 # translates into: "With regard to daylight saving time, it is scheduled to
    284 # take effect at exactly twelve o'clock this evening, Thursday, 15 MAY 2014,
    285 # to be suspended by twelve o'clock on the evening of Thursday, 26 JUN 2014,
    286 # and re-established again at the end of the month of Ramadan, at twelve
    287 # o'clock on the evening of Thursday, 31 JUL 2014."  This statement has been
    288 # reproduced by other (more accessible) sites[, e.g.,]...
    289 # http://elgornal.net/news/news.aspx?id=4699258
    290 
    291 # From Steffen Thorsen (2015-04-08):
    292 # Egypt will start DST on midnight after Thursday, April 30, 2015.
    293 # This is based on a law (no 35) from May 15, 2014 saying it starts the last
    294 # Thursday of April....  Clocks will still be turned back for Ramadan, but
    295 # dates not yet announced....
    296 # http://almogaz.com/news/weird-news/2015/04/05/1947105 ...
    297 # https://www.timeanddate.com/news/time/egypt-starts-dst-2015.html
    298 
    299 # From Ahmed Nazmy (2015-04-20):
    300 # Egypt's ministers cabinet just announced ... that it will cancel DST at
    301 # least for 2015.
    302 #
    303 # From Tim Parenti (2015-04-20):
    304 # http://english.ahram.org.eg/WriterArticles/NewsContentP/1/128195/Egypt/No-daylight-saving-this-summer-Egypts-prime-minist.aspx
    305 # "Egypt's cabinet agreed on Monday not to switch clocks for daylight saving
    306 # time this summer, and carry out studies on the possibility of canceling the
    307 # practice altogether in future years."
    308 #
    309 # From Paul Eggert (2015-04-24):
    310 # Yesterday the office of Egyptian President El-Sisi announced his
    311 # decision to abandon DST permanently.  See Ahram Online 2015-04-24.
    312 # http://english.ahram.org.eg/NewsContent/1/64/128509/Egypt/Politics-/Sisi-cancels-daylight-saving-time-in-Egypt.aspx
    313 
    314 # From Steffen Thorsen (2016-04-29):
    315 # Egypt will have DST from July 7 until the end of October....
    316 # http://english.ahram.org.eg/NewsContentP/1/204655/Egypt/Daylight-savings-time-returning-to-Egypt-on--July.aspx
    317 # From Mina Samuel (2016-07-04):
    318 # Egyptian government took the decision to cancel the DST,
    319 
    320 # From Ahmad ElDardiry (2023-03-01):
    321 # Egypt officially announced today that daylight savings will be
    322 # applied from last Friday of April to last Thursday of October.
    323 # From Paul Eggert (2023-03-01):
    324 # Assume transitions are at 00:00 and 24:00 respectively.
    325 # From Amir Adib (2023-03-07):
    326 # https://www.facebook.com/EgyptianCabinet/posts/638829614954129/
    327 
    328 Rule	Egypt	2008	only	-	Aug	lastThu	24:00	0	-
    329 Rule	Egypt	2009	only	-	Aug	20	24:00	0	-
    330 Rule	Egypt	2010	only	-	Aug	10	24:00	0	-
    331 Rule	Egypt	2010	only	-	Sep	 9	24:00	1:00	S
    332 Rule	Egypt	2010	only	-	Sep	lastThu	24:00	0	-
    333 Rule	Egypt	2014	only	-	May	15	24:00	1:00	S
    334 Rule	Egypt	2014	only	-	Jun	26	24:00	0	-
    335 Rule	Egypt	2014	only	-	Jul	31	24:00	1:00	S
    336 Rule	Egypt	2014	only	-	Sep	lastThu	24:00	0	-
    337 Rule	Egypt	2023	max	-	Apr	lastFri	 0:00	1:00	S
    338 Rule	Egypt	2023	max	-	Oct	lastThu	24:00	0	-
    339 
    340 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
    341 		#STDOFF	2:05:08.9
    342 Zone	Africa/Cairo	2:05:09 -	LMT	1900 Oct
    343 			2:00	Egypt	EE%sT
    344 
    345 # Guinea-Bissau
    346 #
    347 # From Tim Parenti (2024-07-01), per Paul Eggert (2018-02-16):
    348 # For timestamps before independence, see commentary for Europe/Lisbon.
    349 #
    350 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
    351 Zone	Africa/Bissau	-1:02:20 -	LMT	1912 Jan  1  1:00u
    352 			-1:00	-	%z	1975
    353 			 0:00	-	GMT
    354 
    355 # Comoros
    356 # Djibouti
    357 # Eritrea
    358 # Ethiopia
    359 # Kenya
    360 # Madagascar
    361 # Mayotte
    362 # Somalia
    363 # Tanzania
    364 # Uganda
    365 
    366 # From P Chan (2020-10-24):
    367 #
    368 # The standard time of GMT+2:30 was adopted in the East Africa Protectorate....
    369 # [The Official Gazette, 1908-05-01, p 274]
    370 # https://books.google.com/books?id=e-cAC-sjPSEC&pg=PA274
    371 #
    372 # At midnight on 30 June 1928 the clocks throughout Kenya was put forward
    373 # half an hour by the Alteration of Time Ordinance, 1928.
    374 # https://gazettes.africa/archive/ke/1928/ke-government-gazette-dated-1928-05-11-no-28.pdf
    375 # [Ordinance No. 11 of 1928, The Official Gazette, 1928-06-26, p 813]
    376 # https://books.google.com/books?id=2S0S6os32ZUC&pg=PA813
    377 #
    378 # The 1928 ordinance was repealed by the Alteration of Time (repeal) Ordinance,
    379 # 1929 and the time was restored to GMT+2:30 at midnight on 4 January 1930.
    380 # [Ordinance No. 97 of 1929, The Official Gazette, 1929-12-31, p 2701]
    381 # https://books.google.com/books?id=_g18jIZQlwwC&pg=PA2701
    382 #
    383 # The Alteration of Time Ordinance, 1936 changed the time to GMT+2:45
    384 # and repealed the previous ordinance at midnight on 31 December 1936.
    385 # [The Official Gazette, 1936-07-21, p 705]
    386 # https://books.google.com/books?id=K7j41z0aC5wC&pg=PA705
    387 #
    388 # The Defence (Amendment of Laws No. 120) Regulations changed the time
    389 # to GMT+3 at midnight on 31 July 1942.
    390 # [Kenya Official Gazette Supplement No. 32, 1942-07-21, p 331]
    391 # https://books.google.com/books?hl=zh-TW&id=c_E-AQAAIAAJ&pg=PA331
    392 # The provision of the 1936 ordinance was not repealed and was later
    393 # incorporated in the Interpretation and General Clauses Ordinance in 1948.
    394 # Although it was overridden by the 1942 regulations.
    395 # [The Laws of Kenya in force on 1948-09-21, Title I, Chapter 1, 31]
    396 # https://dds.crl.edu/item/217517 (p.101)
    397 # In 1950 the Interpretation and General Clauses Ordinance was amended to adopt
    398 # GMT+3 permanently as the 1942 regulations were due to expire on 10 December.
    399 # https://books.google.com/books?id=jvR8mUDAwR0C&pg=PA787
    400 # [Ordinance No. 44 of 1950, Kenya Ordinances 1950, Vol. XXIX, p 294]
    401 # https://books.google.com/books?id=-_dQAQAAMAAJ&pg=PA294
    402 
    403 # From Paul Eggert (2020-10-24):
    404 # The 1908-05-01 announcement does not give an effective date,
    405 # so just say "1908 May".
    406 
    407 # From Paul Eggert (2018-09-11):
    408 # Unfortunately tzdb records only Western clock time in use in Ethiopia,
    409 # as the tzdb format is not up to properly recording a common Ethiopian
    410 # timekeeping practice that is based on solar time.  See:
    411 # Mortada D. If you have a meeting in Ethiopia, you'd better double
    412 # check the time. PRI's The World. 2015-01-30 15:15 -05.
    413 # https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-better-double-check-time
    414 
    415 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
    416 Zone	Africa/Nairobi	2:27:16	-	LMT	1908 May
    417 			2:30	-	%z	1928 Jun 30 24:00
    418 			3:00	-	EAT	1930 Jan  4 24:00
    419 			2:30	-	%z	1936 Dec 31 24:00
    420 			2:45	-	%z	1942 Jul 31 24:00
    421 			3:00	-	EAT
    422 
    423 # Liberia
    424 #
    425 # From Paul Eggert (2017-03-02):
    426 #
    427 # The Nautical Almanac for the Year 1970, p 264, is the source for -0:44:30.
    428 #
    429 # In 1972 Liberia was the last country to switch from a UT offset
    430 # that was not a multiple of 15 or 20 minutes.  The 1972 change was on
    431 # 1972-01-07, according to an entry dated 1972-01-04 on p 330 of:
    432 # Presidential Papers: First year of the administration of
    433 # President William R. Tolbert, Jr., July 23, 1971-July 31, 1972.
    434 # Monrovia: Executive Mansion.
    435 #
    436 # Use the abbreviation "MMT" before 1972, as the more accurate numeric
    437 # abbreviation "-004430" would be one byte over the POSIX limit.
    438 #
    439 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
    440 Zone	Africa/Monrovia	-0:43:08 -	LMT	1882
    441 			-0:43:08 -	MMT	1919 Mar # Monrovia Mean Time
    442 			-0:44:30 -	MMT	1972 Jan 7 # approximately MMT
    443 			 0:00	-	GMT
    444 
    445 ###############################################################################
    446 
    447 # Libya
    448 
    449 # From Even Scharning (2012-11-10):
    450 # Libya set their time one hour back at 02:00 on Saturday November 10.
    451 # https://www.libyaherald.com/2012/11/04/clocks-to-go-back-an-hour-on-saturday/
    452 # Here is an official source [in Arabic]: http://ls.ly/fb6Yc
    453 #
    454 # Steffen Thorsen forwarded a translation (2012-11-10) in
    455 # https://mm.icann.org/pipermail/tz/2012-November/018451.html
    456 #
    457 # From Tim Parenti (2012-11-11):
    458 # Treat the 2012-11-10 change as a zone change from UTC+2 to UTC+1.
    459 # The DST rules planned for 2013 and onward roughly mirror those of Europe
    460 # (either two days before them or five days after them, so as to fall on
    461 # lastFri instead of lastSun).
    462 
    463 # From Even Scharning (2013-10-25):
    464 # The scheduled end of DST in Libya on Friday, October 25, 2013 was
    465 # cancelled yesterday....
    466 # https://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/
    467 #
    468 # From Paul Eggert (2013-10-25):
    469 # For now, assume they're reverting to the pre-2012 rules of permanent UT +02.
    470 
    471 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
    472 Rule	Libya	1951	only	-	Oct	14	2:00	1:00	S
    473 Rule	Libya	1952	only	-	Jan	 1	0:00	0	-
    474 Rule	Libya	1953	only	-	Oct	 9	2:00	1:00	S
    475 Rule	Libya	1954	only	-	Jan	 1	0:00	0	-
    476 Rule	Libya	1955	only	-	Sep	30	0:00	1:00	S
    477 Rule	Libya	1956	only	-	Jan	 1	0:00	0	-
    478 Rule	Libya	1982	1984	-	Apr	 1	0:00	1:00	S
    479 Rule	Libya	1982	1985	-	Oct	 1	0:00	0	-
    480 Rule	Libya	1985	only	-	Apr	 6	0:00	1:00	S
    481 Rule	Libya	1986	only	-	Apr	 4	0:00	1:00	S
    482 Rule	Libya	1986	only	-	Oct	 3	0:00	0	-
    483 Rule	Libya	1987	1989	-	Apr	 1	0:00	1:00	S
    484 Rule	Libya	1987	1989	-	Oct	 1	0:00	0	-
    485 Rule	Libya	1997	only	-	Apr	 4	0:00	1:00	S
    486 Rule	Libya	1997	only	-	Oct	 4	0:00	0	-
    487 Rule	Libya	2013	only	-	Mar	lastFri	1:00	1:00	S
    488 Rule	Libya	2013	only	-	Oct	lastFri	2:00	0	-
    489 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
    490 Zone	Africa/Tripoli	0:52:44 -	LMT	1920
    491 			1:00	Libya	CE%sT	1959
    492 			2:00	-	EET	1982
    493 			1:00	Libya	CE%sT	1990 May  4
    494 # The 1996 and 1997 entries are from Shanks & Pottenger;
    495 # the IATA SSIM data entries contain some obvious errors.
    496 			2:00	-	EET	1996 Sep 30
    497 			1:00	Libya	CE%sT	1997 Oct  4
    498 			2:00	-	EET	2012 Nov 10  2:00
    499 			1:00	Libya	CE%sT	2013 Oct 25  2:00
    500 			2:00	-	EET
    501 
    502 # Mauritius
    503 
    504 # From Steffen Thorsen (2008-06-25):
    505 # Mauritius plans to observe DST from 2008-11-01 to 2009-03-31 on a trial
    506 # basis....
    507 # It seems that Mauritius observed daylight saving time from 1982-10-10 to
    508 # 1983-03-20 as well, but that was not successful....
    509 # https://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html
    510 
    511 # From Alex Krivenyshev (2008-06-25):
    512 # http://economicdevelopment.gov.mu/portal/site/Mainhomepage/menuitem.a42b24128104d9845dabddd154508a0c/?content_id=0a7cee8b5d69a110VgnVCM1000000a04a8c0RCRD
    513 
    514 # From Arthur David Olson (2008-06-30):
    515 # The www.timeanddate.com article cited by Steffen Thorsen notes that "A
    516 # final decision has yet to be made on the times that daylight saving
    517 # would begin and end on these dates." As a place holder, use midnight.
    518 
    519 # From Paul Eggert (2008-06-30):
    520 # Follow Thorsen on DST in 1982/1983, instead of Shanks & Pottenger.
    521 
    522 # From Steffen Thorsen (2008-07-10):
    523 # According to
    524 # http://www.lexpress.mu/display_article.php?news_id=111216
    525 # (in French), Mauritius will start and end their DST a few days earlier
    526 # than previously announced (2008-11-01 to 2009-03-31).  The new start
    527 # date is 2008-10-26 at 02:00 and the new end date is 2009-03-27 (no time
    528 # given, but it is probably at either 2 or 3 wall clock time).
    529 #
    530 # A little strange though, since the article says that they moved the date
    531 # to align itself with Europe and USA which also change time on that date,
    532 # but that means they have not paid attention to what happened in
    533 # USA/Canada last year (DST ends first Sunday in November). I also wonder
    534 # why that they end on a Friday, instead of aligning with Europe which
    535 # changes two days later.
    536 
    537 # From Alex Krivenyshev (2008-07-11):
    538 # Seems that English language article "The revival of daylight saving
    539 # time: Energy conservation?"- No. 16578 (07/11/2008) was originally
    540 # published on Monday, June 30, 2008...
    541 #
    542 # I guess that article in French "Le gouvernement avance l'introduction
    543 # de l'heure d't" stating that DST in Mauritius starting on October 26
    544 # and ending on March 27, 2009 is the most recent one....
    545 # http://www.worldtimezone.com/dst_news/dst_news_mauritius02.html
    546 
    547 # From Riad M. Hossen Ally (2008-08-03):
    548 # The Government of Mauritius weblink
    549 # http://www.gov.mu/portal/site/pmosite/menuitem.4ca0efdee47462e7440a600248a521ca/?content_id=4728ca68b2a5b110VgnVCM1000000a04a8c0RCRD
    550 # Cabinet Decision of July 18th, 2008 states as follows:
    551 #
    552 # 4. ...Cabinet has agreed to the introduction into the National Assembly
    553 # of the Time Bill which provides for the introduction of summer time in
    554 # Mauritius. The summer time period which will be of one hour ahead of
    555 # the standard time, will be aligned with that in Europe and the United
    556 # States of America. It will start at two o'clock in the morning on the
    557 # last Sunday of October and will end at two o'clock in the morning on
    558 # the last Sunday of March the following year. The summer time for the
    559 # year 2008-2009 will, therefore, be effective as from 26 October 2008
    560 # and end on 29 March 2009.
    561 
    562 # From Ed Maste (2008-10-07):
    563 # THE TIME BILL (No. XXVII of 2008) Explanatory Memorandum states the
    564 # beginning / ending of summer time is 2 o'clock standard time in the
    565 # morning of the last Sunday of October / last Sunday of March.
    566 # http://www.gov.mu/portal/goc/assemblysite/file/bill2708.pdf
    567 
    568 # From Steffen Thorsen (2009-06-05):
    569 # According to several sources, Mauritius will not continue to observe
    570 # DST the coming summer...
    571 #
    572 # Some sources, in French:
    573 # http://www.defimedia.info/news/946/Rashid-Beebeejaun-:--L%E2%80%99heure-d%E2%80%99t-ne-sera-pas-applique-cette-anne-
    574 # http://lexpress.mu/Story/3398~Beebeejaun---Les-objectifs-d-conomie-d-nergie-de-l-heure-d-t-ont-t-atteints-
    575 #
    576 # Our wrap-up:
    577 # https://www.timeanddate.com/news/time/mauritius-dst-will-not-repeat.html
    578 
    579 # From Arthur David Olson (2009-07-11):
    580 # The "mauritius-dst-will-not-repeat" wrapup includes this:
    581 # "The trial ended on March 29, 2009, when the clocks moved back by one hour
    582 # at 2am (or 02:00) local time..."
    583 
    584 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
    585 Rule Mauritius	1982	only	-	Oct	10	0:00	1:00	-
    586 Rule Mauritius	1983	only	-	Mar	21	0:00	0	-
    587 Rule Mauritius	2008	only	-	Oct	lastSun	2:00	1:00	-
    588 Rule Mauritius	2009	only	-	Mar	lastSun	2:00	0	-
    589 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
    590 Zone Indian/Mauritius	3:50:00 -	LMT	1907 # Port Louis
    591 			4:00 Mauritius	%z
    592 # Agalega Is, Rodriguez
    593 # no information; probably like Indian/Mauritius
    594 
    595 
    596 # Morocco
    597 # See Africa/Ceuta for Spanish Morocco.
    598 
    599 # From Alex Krivenyshev (2008-05-09):
    600 # Here is an article that Morocco plan to introduce Daylight Saving Time between
    601 # 1 June, 2008 and 27 September, 2008.
    602 #
    603 # "... Morocco is to save energy by adjusting its clock during summer so it will
    604 # be one hour ahead of GMT between 1 June and 27 September, according to
    605 # Communication Minister and Government Spokesman, Khalid Naciri...."
    606 #
    607 # http://www.worldtimezone.com/dst_news/dst_news_morocco01.html
    608 # http://en.afrik.com/news11892.html
    609 
    610 # From Alex Krivenyshev (2008-05-09):
    611 # The Morocco time change can be confirmed on Morocco web site Maghreb Arabe
    612 # Presse:
    613 # http://www.map.ma/eng/sections/box3/morocco_shifts_to_da/view
    614 #
    615 # Morocco shifts to daylight time on June 1st through September 27, Govt.
    616 # spokesman.
    617 
    618 # From Patrice Scattolin (2008-05-09):
    619 # According to this article:
    620 # https://www.avmaroc.com/actualite/heure-dete-comment-a127896.html
    621 # (and republished here: <http://www.actu.ma/heure-dete-comment_i127896_0.html>)
    622 # the changes occur at midnight:
    623 #
    624 # Saturday night May 31st at midnight (which in French is to be
    625 # interpreted as the night between Saturday and Sunday)
    626 # Sunday night the 28th at midnight
    627 #
    628 # Seeing that the 28th is Monday, I am guessing that she intends to say
    629 # the midnight of the 28th which is the midnight between Sunday and
    630 # Monday, which jives with other sources that say that it's inclusive
    631 # June 1st to Sept 27th.
    632 #
    633 # The decision was taken by decree *2-08-224 *but I can't find the decree
    634 # published on the web.
    635 #
    636 # It's also confirmed here:
    637 # http://www.maroc.ma/NR/exeres/FACF141F-D910-44B0-B7FA-6E03733425D1.htm
    638 # on a government portal as being between June 1st and Sept 27th (not yet
    639 # posted in English).
    640 #
    641 # The following Google query will generate many relevant hits:
    642 # https://www.google.com/search?hl=en&q=Conseil+de+gouvernement+maroc+heure+avance&btnG=Search
    643 
    644 # From Steffen Thorsen (2008-08-27):
    645 # Morocco will change the clocks back on the midnight between August 31
    646 # and September 1. They originally planned to observe DST to near the end
    647 # of September:
    648 #
    649 # One article about it (in French):
    650 # http://www.menara.ma/fr/Actualites/Maroc/Societe/ci.retour_a_l_heure_gmt_a_partir_du_dimanche_31_aout_a_minuit_officiel_.default
    651 #
    652 # We have some further details posted here:
    653 # https://www.timeanddate.com/news/time/morocco-ends-dst-early-2008.html
    654 
    655 # From Steffen Thorsen (2009-03-17):
    656 # Morocco will observe DST from 2009-06-01 00:00 to 2009-08-21 00:00 according
    657 # to many sources, such as
    658 # http://news.marweb.com/morocco/entertainment/morocco-daylight-saving.html
    659 # http://www.medi1sat.ma/fr/depeche.aspx?idp=2312
    660 # (French)
    661 #
    662 # Our summary:
    663 # https://www.timeanddate.com/news/time/morocco-starts-dst-2009.html
    664 
    665 # From Alexander Krivenyshev (2009-03-17):
    666 # Here is a link to official document from Royaume du Maroc Premier Ministre,
    667 # Ministre de la Modernisation des Secteurs Publics
    668 #
    669 # Under Article 1 of Royal Decree No. 455-67 of Act 23 safar 1387 (2 June 1967)
    670 # concerning the amendment of the legal time, the Ministry of Modernization of
    671 # Public Sectors announced that the official time in the Kingdom will be
    672 # advanced 60 minutes from Sunday 31 May 2009 at midnight.
    673 #
    674 # http://www.mmsp.gov.ma/francais/Actualites_fr/PDF_Actualites_Fr/HeureEte_FR.pdf
    675 # http://www.worldtimezone.com/dst_news/dst_news_morocco03.html
    676 
    677 # From Steffen Thorsen (2010-04-13):
    678 # Several news media in Morocco report that the Ministry of Modernization
    679 # of Public Sectors has announced that Morocco will have DST from
    680 # 2010-05-02 to 2010-08-08.
    681 #
    682 # Example:
    683 # http://www.lavieeco.com/actualites/4099-le-maroc-passera-a-l-heure-d-ete-gmt1-le-2-mai.html
    684 # (French)
    685 # Our page:
    686 # https://www.timeanddate.com/news/time/morocco-starts-dst-2010.html
    687 
    688 # From Dan Abitol (2011-03-30):
    689 # ...Rules for Africa/Casablanca are the following (24h format)
    690 # The 3rd April 2011 at 00:00:00, [it] will be 3rd April 01:00:00
    691 # The 31st July 2011 at 00:59:59, [it] will be 31st July 00:00:00
    692 # ...Official links of change in morocco
    693 # The change was broadcast on the FM Radio
    694 # I ve called ANRT (telecom regulations in Morocco) at
    695 # +212.537.71.84.00
    696 # http://www.anrt.net.ma/fr/
    697 # They said that
    698 # http://www.map.ma/fr/sections/accueil/l_heure_legale_au_ma/view
    699 # is the official publication to look at.
    700 # They said that the decision was already taken.
    701 #
    702 # More articles in the press
    703 # https://www.yabiladi.com/articles/details/5058/secret-l-heure-d-ete-maroc-leve.html
    704 # http://www.lematin.ma/Actualite/Express/Article.asp?id=148923
    705 # http://www.lavieeco.com/actualite/Le-Maroc-passe-sur-GMT+1-a-partir-de-dim
    706 
    707 # From Petr Machata (2011-03-30):
    708 # They have it written in English here:
    709 # http://www.map.ma/eng/sections/home/morocco_to_spring_fo/view
    710 #
    711 # It says there that "Morocco will resume its standard time on July 31,
    712 # 2011 at midnight." Now they don't say whether they mean midnight of
    713 # wall clock time (i.e. 11pm UTC), but that's what I would assume. It has
    714 # also been like that in the past.
    715 
    716 # From Alexander Krivenyshev (2012-03-09):
    717 # According to Infomdiaire web site from Morocco (infomediaire.ma),
    718 # on March 9, 2012, (in French) Heure lgale:
    719 # Le Maroc adopte officiellement l'heure d't
    720 # http://www.infomediaire.ma/news/maroc/heure-lgale-le-maroc-adopte-officiellement-lheure-dt
    721 # Governing Council adopted draft decree, that Morocco DST starts on
    722 # the last Sunday of March (March 25, 2012) and ends on
    723 # last Sunday of September (September 30, 2012)
    724 # except the month of Ramadan.
    725 # or (brief)
    726 # http://www.worldtimezone.com/dst_news/dst_news_morocco06.html
    727 
    728 # From Arthur David Olson (2012-03-10):
    729 # The infomediaire.ma source indicates that the system is to be in
    730 # effect every year. It gives 03H00 as the "fall back" time of day;
    731 # it lacks a "spring forward" time of day; assume 2:00 XXX.
    732 # Wait on specifying the Ramadan exception for details about
    733 # start date, start time of day, end date, and end time of day XXX.
    734 
    735 # From Christophe Tropamer (2012-03-16):
    736 # Seen Morocco change again:
    737 # http://www.le2uminutes.com/actualite.php
    738 # "... partir du dernier dimanche d'avril et non fins mars,
    739 # comme annonc prcdemment."
    740 
    741 # From Milamber Space Network (2012-07-17):
    742 # The official return to GMT is announced by the Moroccan government:
    743 # http://www.mmsp.gov.ma/fr/actualites.aspx?id=288 [in French]
    744 #
    745 # Google translation, lightly edited:
    746 # Back to the standard time of the Kingdom (GMT)
    747 # Pursuant to Decree No. 2-12-126 issued on 26 Jumada (I) 1433 (April 18,
    748 # 2012) and in accordance with the order of Mr. President of the
    749 # Government No. 3-47-12 issued on 24 Sha'ban (11 July 2012), the Ministry
    750 # of Public Service and Administration Modernization announces the return
    751 # of the legal time of the Kingdom (GMT) from Friday, July 20, 2012 until
    752 # Monday, August 20, 2012.  So the time will be delayed by 60 minutes from
    753 # 3:00 am Friday, July 20, 2012 and will again be advanced by 60 minutes
    754 # August 20, 2012 from 2:00 am.
    755 
    756 # From Paul Eggert (2013-03-06):
    757 # Morocco's daylight-saving transitions due to Ramadan seem to be
    758 # announced a bit in advance.  On 2012-07-11 the Moroccan government
    759 # announced that year's Ramadan daylight-saving transitions would be
    760 # 2012-07-20 and 2012-08-20; see
    761 # http://www.mmsp.gov.ma/fr/actualites.aspx?id=288
    762 
    763 # From Andrew Paprocki (2013-07-02):
    764 # Morocco announced that the year's Ramadan daylight-savings
    765 # transitions would be 2013-07-07 and 2013-08-10; see:
    766 # http://www.maroc.ma/en/news/morocco-suspends-daylight-saving-time-july-7-aug10
    767 
    768 # From Steffen Thorsen (2013-09-28):
    769 # Morocco extends DST by one month, on very short notice, just 1 day
    770 # before it was going to end.  There is a new decree (2.13.781) for
    771 # this, where DST from now on goes from last Sunday of March at 02:00
    772 # to last Sunday of October at 03:00, similar to EU rules.  Official
    773 # source (French):
    774 # http://www.maroc.gov.ma/fr/actualites/lhoraire-dete-gmt1-maintenu-jusquau-27-octobre-2013
    775 # Another source (specifying the time for start and end in the decree):
    776 # http://www.lemag.ma/Heure-d-ete-au-Maroc-jusqu-au-27-octobre_a75620.html
    777 
    778 # From Sebastien Willemijns (2014-03-18):
    779 # http://www.afriquinfos.com/articles/2014/3/18/maroc-heure-dete-avancez-tous-horloges-247891.asp
    780 
    781 # From Milamber Space Network (2014-06-05):
    782 # The Moroccan government has recently announced that the country will return
    783 # to standard time at 03:00 on Saturday, June 28, 2014 local time....  DST
    784 # will resume again at 02:00 on Saturday, August 2, 2014....
    785 # http://www.mmsp.gov.ma/fr/actualites.aspx?id=586
    786 
    787 # From Milamber (2015-06-08):
    788 # (Google Translation) The hour will thus be delayed 60 minutes
    789 # Sunday, June 14 at 3:00, the ministry said in a statement, adding
    790 # that the time will be advanced again 60 minutes Sunday, July 19,
    791 # 2015 at 2:00.  The move comes under 2.12.126 Decree of 26 Jumada I
    792 # 1433 (18 April 2012) and the decision of the Head of Government of
    793 # 16 N. 3-29-15 Chaaban 1435 (4 June 2015).
    794 # Source (french):
    795 # https://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/
    796 #
    797 # From Milamber (2015-06-09):
    798 # http://www.mmsp.gov.ma/fr/actualites.aspx?id=863
    799 #
    800 # From Michael Deckers (2015-06-09):
    801 # [The gov.ma announcement] would (probably) make the switch on 2015-07-19 go
    802 # from 03:00 to 04:00 rather than from 02:00 to 03:00, as in the patch....
    803 # I think the patch is correct and the quoted text is wrong; the text in
    804 # <https://lnt.ma/le-maroc-reculera-dune-heure-le-dimanche-14-juin/> agrees
    805 # with the patch.
    806 
    807 # From Mohamed Essedik Najd (2018-10-26):
    808 # Today, a Moroccan government council approved the perpetual addition
    809 # of 60 minutes to the regular Moroccan timezone.
    810 # From Matt Johnson (2018-10-28):
    811 # http://www.sgg.gov.ma/Portals/1/BO/2018/BO_6720-bis_Ar.pdf
    812 #
    813 # From Maamar Abdelkader (2018-11-01):
    814 # We usually move clocks back the previous week end and come back to the +1
    815 # the week end after....  The government does not announce yet the decision
    816 # about this temporary change.  But it s 99% sure that it will be the case,
    817 # as in previous years.  An unofficial survey was done these days, showing
    818 # that 64% of asked people are ok for moving from +1 to +0 during Ramadan.
    819 # https://leconomiste.com/article/1035870-enquete-l-economiste-sunergia-64-des-marocains-plebiscitent-le-gmt-pendant-ramadan
    820 
    821 # From Naoufal Semlali (2019-04-16):
    822 # Morocco will be on GMT starting from Sunday, May 5th 2019 at 3am.
    823 # The switch to GMT+1 will occur on Sunday, June 9th 2019 at 2am....
    824 # http://fr.le360.ma/societe/voici-la-date-du-retour-a-lheure-legale-au-maroc-188222
    825 
    826 # From Semlali Naoufal (2020-04-14):
    827 # Following the announcement by the Moroccan government, the switch to
    828 # GMT time will take place on Sunday, April 19, 2020 from 3 a.m. and
    829 # the return to GMT+1 time will take place on Sunday, May 31, 2020 at 2 a.m....
    830 # https://maroc-diplomatique.net/maroc-le-retour-a-lheure-gmt-est-prevu-dimanche-prochain/
    831 # http://aujourdhui.ma/actualite/gmt1-retour-a-lheure-normale-dimanche-prochain-1
    832 #
    833 # From Milamber (2020-05-31)
    834 # In Morocco (where I live), the end of Ramadan (Arabic month) is followed by
    835 # the Eid al-Fitr, and concretely it's 1 or 2 day offs for the people (with
    836 # traditional visiting of family, big lunches/dinners, etc.).  So for this
    837 # year the astronomical calculations don't include the following 2 days off in
    838 # the calc.  These 2 days fall in a Sunday/Monday, so it's not acceptable by
    839 # people to have a time shift during these 2 days off.  Perhaps you can modify
    840 # the (predicted) rules for next years: if the end of Ramadan is a (probable)
    841 # Friday or Saturday (and so the 2 days off are on a weekend), the next time
    842 # shift will be the next weekend.
    843 #
    844 # From Milamber (2021-03-31, 2022-03-10):
    845 # https://www.mmsp.gov.ma/fr/actualites.aspx?id=2076
    846 # https://www.ecoactu.ma/horaires-administration-ramadan-gmtheure-gmt-a-partir-de-dimanche-27-mars/
    847 #
    848 # From Milamber (2023-03-14, 2023-03-15):
    849 # The return to legal GMT time will take place this Sunday, March 19 at 3 a.m.
    850 # ... the return to GMT+1 will be made on Sunday April 23, 2023 at 2 a.m.
    851 # https://www.mmsp.gov.ma/fr/actualites/passage--l%E2%80%99heure-gmt--partir-du-dimanche-19-mars-2023
    852 #
    853 # From Paul Eggert (2023-03-14):
    854 # For now, guess that in the future Morocco will fall back at 03:00
    855 # the last Sunday before Ramadan, and spring forward at 02:00 the
    856 # first Sunday after one day after Ramadan.  To implement this,
    857 # transition dates and times for 2019 through 2087 were determined by
    858 # running the following program under GNU Emacs 28.2.  (This algorithm
    859 # also produces the correct transition dates for 2016 through 2018,
    860 # though the times differ due to Morocco's time zone change in 2018.)
    861 # (let ((islamic-year 1440))
    862 #   (require 'cal-islam)
    863 #   (while (< islamic-year 1511)
    864 #     (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
    865 #           (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
    866 #           (sunday 0))
    867 #       (while (/= sunday (mod (setq a (1- a)) 7)))
    868 #       (while (/= sunday (mod b 7))
    869 #         (setq b (1+ b)))
    870 #       (setq a (calendar-gregorian-from-absolute a))
    871 #       (setq b (calendar-gregorian-from-absolute b))
    872 #       (insert
    873 #        (format
    874 #         (concat "Rule\tMorocco\t%d\tonly\t-\t%s\t%2d\t 3:00\t-1:00\t-\n"
    875 #                 "Rule\tMorocco\t%d\tonly\t-\t%s\t%2d\t 2:00\t0\t-\n")
    876 #         (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
    877 #         (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
    878 #     (setq islamic-year (+ 1 islamic-year))))
    879 
    880 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
    881 Rule	Morocco	1939	only	-	Sep	12	 0:00	1:00	-
    882 Rule	Morocco	1939	only	-	Nov	19	 0:00	0	-
    883 Rule	Morocco	1940	only	-	Feb	25	 0:00	1:00	-
    884 Rule	Morocco	1945	only	-	Nov	18	 0:00	0	-
    885 Rule	Morocco	1950	only	-	Jun	11	 0:00	1:00	-
    886 Rule	Morocco	1950	only	-	Oct	29	 0:00	0	-
    887 Rule	Morocco	1967	only	-	Jun	 3	12:00	1:00	-
    888 Rule	Morocco	1967	only	-	Oct	 1	 0:00	0	-
    889 Rule	Morocco	1974	only	-	Jun	24	 0:00	1:00	-
    890 Rule	Morocco	1974	only	-	Sep	 1	 0:00	0	-
    891 Rule	Morocco	1976	1977	-	May	 1	 0:00	1:00	-
    892 Rule	Morocco	1976	only	-	Aug	 1	 0:00	0	-
    893 Rule	Morocco	1977	only	-	Sep	28	 0:00	0	-
    894 Rule	Morocco	1978	only	-	Jun	 1	 0:00	1:00	-
    895 Rule	Morocco	1978	only	-	Aug	 4	 0:00	0	-
    896 Rule	Morocco	2008	only	-	Jun	 1	 0:00	1:00	-
    897 Rule	Morocco	2008	only	-	Sep	 1	 0:00	0	-
    898 Rule	Morocco	2009	only	-	Jun	 1	 0:00	1:00	-
    899 Rule	Morocco	2009	only	-	Aug	21	 0:00	0	-
    900 Rule	Morocco	2010	only	-	May	 2	 0:00	1:00	-
    901 Rule	Morocco	2010	only	-	Aug	 8	 0:00	0	-
    902 Rule	Morocco	2011	only	-	Apr	 3	 0:00	1:00	-
    903 Rule	Morocco	2011	only	-	Jul	31	 0:00	0	-
    904 Rule	Morocco	2012	2013	-	Apr	lastSun	 2:00	1:00	-
    905 Rule	Morocco	2012	only	-	Jul	20	 3:00	0	-
    906 Rule	Morocco	2012	only	-	Aug	20	 2:00	1:00	-
    907 Rule	Morocco	2012	only	-	Sep	30	 3:00	0	-
    908 Rule	Morocco	2013	only	-	Jul	 7	 3:00	0	-
    909 Rule	Morocco	2013	only	-	Aug	10	 2:00	1:00	-
    910 Rule	Morocco	2013	2018	-	Oct	lastSun	 3:00	0	-
    911 Rule	Morocco	2014	2018	-	Mar	lastSun	 2:00	1:00	-
    912 Rule	Morocco	2014	only	-	Jun	28	 3:00	0	-
    913 Rule	Morocco	2014	only	-	Aug	 2	 2:00	1:00	-
    914 Rule	Morocco	2015	only	-	Jun	14	 3:00	0	-
    915 Rule	Morocco	2015	only	-	Jul	19	 2:00	1:00	-
    916 Rule	Morocco	2016	only	-	Jun	 5	 3:00	0	-
    917 Rule	Morocco	2016	only	-	Jul	10	 2:00	1:00	-
    918 Rule	Morocco	2017	only	-	May	21	 3:00	0	-
    919 Rule	Morocco	2017	only	-	Jul	 2	 2:00	1:00	-
    920 Rule	Morocco	2018	only	-	May	13	 3:00	0	-
    921 Rule	Morocco	2018	only	-	Jun	17	 2:00	1:00	-
    922 Rule	Morocco	2019	only	-	May	 5	 3:00	-1:00	-
    923 Rule	Morocco	2019	only	-	Jun	 9	 2:00	0	-
    924 Rule	Morocco	2020	only	-	Apr	19	 3:00	-1:00	-
    925 Rule	Morocco	2020	only	-	May	31	 2:00	0	-
    926 Rule	Morocco	2021	only	-	Apr	11	 3:00	-1:00	-
    927 Rule	Morocco	2021	only	-	May	16	 2:00	0	-
    928 Rule	Morocco	2022	only	-	Mar	27	 3:00	-1:00	-
    929 Rule	Morocco	2022	only	-	May	 8	 2:00	0	-
    930 Rule	Morocco	2023	only	-	Mar	19	 3:00	-1:00	-
    931 Rule	Morocco	2023	only	-	Apr	23	 2:00	0	-
    932 Rule	Morocco	2024	only	-	Mar	10	 3:00	-1:00	-
    933 Rule	Morocco	2024	only	-	Apr	14	 2:00	0	-
    934 Rule	Morocco	2025	only	-	Feb	23	 3:00	-1:00	-
    935 Rule	Morocco	2025	only	-	Apr	 6	 2:00	0	-
    936 Rule	Morocco	2026	only	-	Feb	15	 3:00	-1:00	-
    937 Rule	Morocco	2026	only	-	Mar	22	 2:00	0	-
    938 Rule	Morocco	2027	only	-	Feb	 7	 3:00	-1:00	-
    939 Rule	Morocco	2027	only	-	Mar	14	 2:00	0	-
    940 Rule	Morocco	2028	only	-	Jan	23	 3:00	-1:00	-
    941 Rule	Morocco	2028	only	-	Mar	 5	 2:00	0	-
    942 Rule	Morocco	2029	only	-	Jan	14	 3:00	-1:00	-
    943 Rule	Morocco	2029	only	-	Feb	18	 2:00	0	-
    944 Rule	Morocco	2029	only	-	Dec	30	 3:00	-1:00	-
    945 Rule	Morocco	2030	only	-	Feb	10	 2:00	0	-
    946 Rule	Morocco	2030	only	-	Dec	22	 3:00	-1:00	-
    947 Rule	Morocco	2031	only	-	Jan	26	 2:00	0	-
    948 Rule	Morocco	2031	only	-	Dec	14	 3:00	-1:00	-
    949 Rule	Morocco	2032	only	-	Jan	18	 2:00	0	-
    950 Rule	Morocco	2032	only	-	Nov	28	 3:00	-1:00	-
    951 Rule	Morocco	2033	only	-	Jan	 9	 2:00	0	-
    952 Rule	Morocco	2033	only	-	Nov	20	 3:00	-1:00	-
    953 Rule	Morocco	2033	only	-	Dec	25	 2:00	0	-
    954 Rule	Morocco	2034	only	-	Nov	 5	 3:00	-1:00	-
    955 Rule	Morocco	2034	only	-	Dec	17	 2:00	0	-
    956 Rule	Morocco	2035	only	-	Oct	28	 3:00	-1:00	-
    957 Rule	Morocco	2035	only	-	Dec	 9	 2:00	0	-
    958 Rule	Morocco	2036	only	-	Oct	19	 3:00	-1:00	-
    959 Rule	Morocco	2036	only	-	Nov	23	 2:00	0	-
    960 Rule	Morocco	2037	only	-	Oct	 4	 3:00	-1:00	-
    961 Rule	Morocco	2037	only	-	Nov	15	 2:00	0	-
    962 Rule	Morocco	2038	only	-	Sep	26	 3:00	-1:00	-
    963 Rule	Morocco	2038	only	-	Oct	31	 2:00	0	-
    964 Rule	Morocco	2039	only	-	Sep	18	 3:00	-1:00	-
    965 Rule	Morocco	2039	only	-	Oct	23	 2:00	0	-
    966 Rule	Morocco	2040	only	-	Sep	 2	 3:00	-1:00	-
    967 Rule	Morocco	2040	only	-	Oct	14	 2:00	0	-
    968 Rule	Morocco	2041	only	-	Aug	25	 3:00	-1:00	-
    969 Rule	Morocco	2041	only	-	Sep	29	 2:00	0	-
    970 Rule	Morocco	2042	only	-	Aug	10	 3:00	-1:00	-
    971 Rule	Morocco	2042	only	-	Sep	21	 2:00	0	-
    972 Rule	Morocco	2043	only	-	Aug	 2	 3:00	-1:00	-
    973 Rule	Morocco	2043	only	-	Sep	13	 2:00	0	-
    974 Rule	Morocco	2044	only	-	Jul	24	 3:00	-1:00	-
    975 Rule	Morocco	2044	only	-	Aug	28	 2:00	0	-
    976 Rule	Morocco	2045	only	-	Jul	 9	 3:00	-1:00	-
    977 Rule	Morocco	2045	only	-	Aug	20	 2:00	0	-
    978 Rule	Morocco	2046	only	-	Jul	 1	 3:00	-1:00	-
    979 Rule	Morocco	2046	only	-	Aug	 5	 2:00	0	-
    980 Rule	Morocco	2047	only	-	Jun	23	 3:00	-1:00	-
    981 Rule	Morocco	2047	only	-	Jul	28	 2:00	0	-
    982 Rule	Morocco	2048	only	-	Jun	 7	 3:00	-1:00	-
    983 Rule	Morocco	2048	only	-	Jul	19	 2:00	0	-
    984 Rule	Morocco	2049	only	-	May	30	 3:00	-1:00	-
    985 Rule	Morocco	2049	only	-	Jul	 4	 2:00	0	-
    986 Rule	Morocco	2050	only	-	May	15	 3:00	-1:00	-
    987 Rule	Morocco	2050	only	-	Jun	26	 2:00	0	-
    988 Rule	Morocco	2051	only	-	May	 7	 3:00	-1:00	-
    989 Rule	Morocco	2051	only	-	Jun	18	 2:00	0	-
    990 Rule	Morocco	2052	only	-	Apr	28	 3:00	-1:00	-
    991 Rule	Morocco	2052	only	-	Jun	 2	 2:00	0	-
    992 Rule	Morocco	2053	only	-	Apr	13	 3:00	-1:00	-
    993 Rule	Morocco	2053	only	-	May	25	 2:00	0	-
    994 Rule	Morocco	2054	only	-	Apr	 5	 3:00	-1:00	-
    995 Rule	Morocco	2054	only	-	May	10	 2:00	0	-
    996 Rule	Morocco	2055	only	-	Mar	28	 3:00	-1:00	-
    997 Rule	Morocco	2055	only	-	May	 2	 2:00	0	-
    998 Rule	Morocco	2056	only	-	Mar	12	 3:00	-1:00	-
    999 Rule	Morocco	2056	only	-	Apr	23	 2:00	0	-
   1000 Rule	Morocco	2057	only	-	Mar	 4	 3:00	-1:00	-
   1001 Rule	Morocco	2057	only	-	Apr	 8	 2:00	0	-
   1002 Rule	Morocco	2058	only	-	Feb	17	 3:00	-1:00	-
   1003 Rule	Morocco	2058	only	-	Mar	31	 2:00	0	-
   1004 Rule	Morocco	2059	only	-	Feb	 9	 3:00	-1:00	-
   1005 Rule	Morocco	2059	only	-	Mar	23	 2:00	0	-
   1006 Rule	Morocco	2060	only	-	Feb	 1	 3:00	-1:00	-
   1007 Rule	Morocco	2060	only	-	Mar	 7	 2:00	0	-
   1008 Rule	Morocco	2061	only	-	Jan	16	 3:00	-1:00	-
   1009 Rule	Morocco	2061	only	-	Feb	27	 2:00	0	-
   1010 Rule	Morocco	2062	only	-	Jan	 8	 3:00	-1:00	-
   1011 Rule	Morocco	2062	only	-	Feb	12	 2:00	0	-
   1012 Rule	Morocco	2062	only	-	Dec	31	 3:00	-1:00	-
   1013 Rule	Morocco	2063	only	-	Feb	 4	 2:00	0	-
   1014 Rule	Morocco	2063	only	-	Dec	16	 3:00	-1:00	-
   1015 Rule	Morocco	2064	only	-	Jan	27	 2:00	0	-
   1016 Rule	Morocco	2064	only	-	Dec	 7	 3:00	-1:00	-
   1017 Rule	Morocco	2065	only	-	Jan	11	 2:00	0	-
   1018 Rule	Morocco	2065	only	-	Nov	22	 3:00	-1:00	-
   1019 Rule	Morocco	2066	only	-	Jan	 3	 2:00	0	-
   1020 Rule	Morocco	2066	only	-	Nov	14	 3:00	-1:00	-
   1021 Rule	Morocco	2066	only	-	Dec	26	 2:00	0	-
   1022 Rule	Morocco	2067	only	-	Nov	 6	 3:00	-1:00	-
   1023 Rule	Morocco	2067	only	-	Dec	11	 2:00	0	-
   1024 Rule	Morocco	2068	only	-	Oct	21	 3:00	-1:00	-
   1025 Rule	Morocco	2068	only	-	Dec	 2	 2:00	0	-
   1026 Rule	Morocco	2069	only	-	Oct	13	 3:00	-1:00	-
   1027 Rule	Morocco	2069	only	-	Nov	17	 2:00	0	-
   1028 Rule	Morocco	2070	only	-	Oct	 5	 3:00	-1:00	-
   1029 Rule	Morocco	2070	only	-	Nov	 9	 2:00	0	-
   1030 Rule	Morocco	2071	only	-	Sep	20	 3:00	-1:00	-
   1031 Rule	Morocco	2071	only	-	Nov	 1	 2:00	0	-
   1032 Rule	Morocco	2072	only	-	Sep	11	 3:00	-1:00	-
   1033 Rule	Morocco	2072	only	-	Oct	16	 2:00	0	-
   1034 Rule	Morocco	2073	only	-	Aug	27	 3:00	-1:00	-
   1035 Rule	Morocco	2073	only	-	Oct	 8	 2:00	0	-
   1036 Rule	Morocco	2074	only	-	Aug	19	 3:00	-1:00	-
   1037 Rule	Morocco	2074	only	-	Sep	30	 2:00	0	-
   1038 Rule	Morocco	2075	only	-	Aug	11	 3:00	-1:00	-
   1039 Rule	Morocco	2075	only	-	Sep	15	 2:00	0	-
   1040 Rule	Morocco	2076	only	-	Jul	26	 3:00	-1:00	-
   1041 Rule	Morocco	2076	only	-	Sep	 6	 2:00	0	-
   1042 Rule	Morocco	2077	only	-	Jul	18	 3:00	-1:00	-
   1043 Rule	Morocco	2077	only	-	Aug	22	 2:00	0	-
   1044 Rule	Morocco	2078	only	-	Jul	10	 3:00	-1:00	-
   1045 Rule	Morocco	2078	only	-	Aug	14	 2:00	0	-
   1046 Rule	Morocco	2079	only	-	Jun	25	 3:00	-1:00	-
   1047 Rule	Morocco	2079	only	-	Aug	 6	 2:00	0	-
   1048 Rule	Morocco	2080	only	-	Jun	16	 3:00	-1:00	-
   1049 Rule	Morocco	2080	only	-	Jul	21	 2:00	0	-
   1050 Rule	Morocco	2081	only	-	Jun	 1	 3:00	-1:00	-
   1051 Rule	Morocco	2081	only	-	Jul	13	 2:00	0	-
   1052 Rule	Morocco	2082	only	-	May	24	 3:00	-1:00	-
   1053 Rule	Morocco	2082	only	-	Jun	28	 2:00	0	-
   1054 Rule	Morocco	2083	only	-	May	16	 3:00	-1:00	-
   1055 Rule	Morocco	2083	only	-	Jun	20	 2:00	0	-
   1056 Rule	Morocco	2084	only	-	Apr	30	 3:00	-1:00	-
   1057 Rule	Morocco	2084	only	-	Jun	11	 2:00	0	-
   1058 Rule	Morocco	2085	only	-	Apr	22	 3:00	-1:00	-
   1059 Rule	Morocco	2085	only	-	May	27	 2:00	0	-
   1060 Rule	Morocco	2086	only	-	Apr	14	 3:00	-1:00	-
   1061 Rule	Morocco	2086	only	-	May	19	 2:00	0	-
   1062 Rule	Morocco	2087	only	-	Mar	30	 3:00	-1:00	-
   1063 Rule	Morocco	2087	only	-	May	11	 2:00	0	-
   1064 # For dates after the somewhat-arbitrary cutoff of 2087, assume that
   1065 # Morocco will no longer observe DST.  At some point this table will
   1066 # need to be extended, though quite possibly Morocco will change the
   1067 # rules first.
   1068 
   1069 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
   1070 Zone Africa/Casablanca	-0:30:20 -	LMT	1913 Oct 26
   1071 			 0:00	Morocco	%z	1984 Mar 16
   1072 			 1:00	-	%z	1986
   1073 			 0:00	Morocco	%z	2018 Oct 28  3:00
   1074 			 1:00	Morocco	%z
   1075 
   1076 # Western Sahara
   1077 #
   1078 # From Gwillim Law (2013-10-22):
   1079 # A correspondent who is usually well informed about time zone matters
   1080 # ... says that Western Sahara observes daylight saving time, just as
   1081 # Morocco does.
   1082 #
   1083 # From Paul Eggert (2013-10-23):
   1084 # Assume that this has been true since Western Sahara switched to GMT,
   1085 # since most of it was then controlled by Morocco.
   1086 
   1087 Zone Africa/El_Aaiun	-0:52:48 -	LMT	1934 Jan # El Aain
   1088 			-1:00	-	%z	1976 Apr 14
   1089 			 0:00	Morocco	%z	2018 Oct 28  3:00
   1090 			 1:00	Morocco	%z
   1091 
   1092 # Botswana
   1093 # Burundi
   1094 # Democratic Republic of the Congo (eastern)
   1095 # Malawi
   1096 # Mozambique
   1097 # Rwanda
   1098 # Zambia
   1099 # Zimbabwe
   1100 #
   1101 # From Tim Parenti (2024-07-01):
   1102 # For timestamps before Mozambique's independence, see commentary for
   1103 # Europe/Lisbon.
   1104 #
   1105 # From Paul Eggert (2024-05-24):
   1106 # The London Gazette, 1903-04-03, page 2245, says that
   1107 # as of 1903-03-03 a time ball at the port of Loureno Marques
   1108 # (as Maputo was then called) was dropped daily at 13:00:00 LMT,
   1109 # corresponding to 22:49:41.7 GMT, so local time was +02:10:18.3.
   1110 # Conversely, the newspaper South Africa, 1909-02-09, page 321,
   1111 # says the port had just installed an apparatus that communicated
   1112 # "from the controlling clock in the new Observatory at Reuben Point ...
   1113 # exact mean South African time, i.e., 30 deg., or 2 hours East of Greenwich".
   1114 # Although Shanks gives 1903-03-01 for the transition to CAT,
   1115 # evidently the port transitioned to CAT after 1903-03-03 but before
   1116 # the Portuguese legal transition of 1912-01-01 (see Europe/Lisbon commentary).
   1117 # For lack of better info, list 1909 as the transition date.
   1118 #
   1119 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
   1120 		#STDOFF	2:10:18.3
   1121 Zone	Africa/Maputo	2:10:18 -	LMT	1909
   1122 			2:00	-	CAT
   1123 
   1124 # Namibia
   1125 
   1126 # From Arthur David Olson (2017-08-09):
   1127 # The text of the "Namibia Time Act, 1994" is available online at
   1128 # www.lac.org.na/laws/1994/811.pdf
   1129 # and includes this nugget:
   1130 # Notwithstanding the provisions of subsection (2) of section 1, the
   1131 # first winter period after the commencement of this Act shall
   1132 # commence at OOhOO on Monday 21 March 1994 and shall end at 02h00 on
   1133 # Sunday 4 September 1994.
   1134 
   1135 # From Michael Deckers (2017-04-06):
   1136 # ... both summer and winter time are called "standard"
   1137 # (which differs from the use in Ireland) ...
   1138 
   1139 # From Petronella Sibeene (2007-03-30):
   1140 # http://allafrica.com/stories/200703300178.html
   1141 # While the entire country changes its time, Katima Mulilo and other
   1142 # settlements in Caprivi unofficially will not because the sun there
   1143 # rises and sets earlier compared to other regions.  Chief of
   1144 # Forecasting Riaan van Zyl explained that the far eastern parts of
   1145 # the country are close to 40 minutes earlier in sunrise than the rest
   1146 # of the country.
   1147 #
   1148 # From Paul Eggert (2017-02-22):
   1149 # Although the Zambezi Region (formerly known as Caprivi) informally
   1150 # observes Botswana time, we have no details about historical practice.
   1151 # In the meantime people there can use Africa/Gaborone.
   1152 # See: Immanuel S. The Namibian. 2017-02-23.
   1153 # https://www.namibian.com.na/51480/read/Time-change-divides-lawmakers
   1154 
   1155 # From Steffen Thorsen (2017-08-09):
   1156 # Namibia is going to change their time zone to what is now their DST:
   1157 # https://www.newera.com.na/2017/02/23/namibias-winter-time-might-be-repealed/
   1158 # This video is from the government decision:
   1159 # https://www.nbc.na/news/na-passes-namibia-time-bill-repealing-1994-namibia-time-act.8665
   1160 # We have made the assumption so far that they will change their time zone at
   1161 # the same time they would normally start DST, the first Sunday in September:
   1162 # https://www.timeanddate.com/news/time/namibia-new-time-zone.html
   1163 
   1164 # From Paul Eggert (2017-04-09):
   1165 # Before the change, summer and winter time were both standard time legally.
   1166 # However in common parlance, winter time was considered to be DST.  See, e.g.:
   1167 # http://www.nbc.na/news/namibias-winter-time-could-be-scrapped.2706
   1168 # https://zone.my.na/news/times-are-changing-in-namibia
   1169 # https://www.newera.com.na/2017/02/23/namibias-winter-time-might-be-repealed/
   1170 # Use plain "WAT" and "CAT" for the time zone abbreviations, to be compatible
   1171 # with Namibia's neighbors.
   1172 
   1173 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
   1174 # Vanguard section, for zic and other parsers that support negative DST.
   1175 Rule	Namibia	1994	only	-	Mar	21	0:00	-1:00	WAT
   1176 Rule	Namibia	1994	2017	-	Sep	Sun>=1	2:00	0	CAT
   1177 Rule	Namibia	1995	2017	-	Apr	Sun>=1	2:00	-1:00	WAT
   1178 # Rearguard section, for parsers lacking negative DST; see ziguard.awk.
   1179 #Rule	Namibia	1994	only	-	Mar	21	0:00	0	WAT
   1180 #Rule	Namibia	1994	2017	-	Sep	Sun>=1	2:00	1:00	CAT
   1181 #Rule	Namibia	1995	2017	-	Apr	Sun>=1	2:00	0	WAT
   1182 # End of rearguard section.
   1183 
   1184 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
   1185 Zone	Africa/Windhoek	1:08:24 -	LMT	1892 Feb 8
   1186 			1:30	-	%z	1903 Mar
   1187 			2:00	-	SAST	1942 Sep 20  2:00
   1188 			2:00	1:00	SAST	1943 Mar 21  2:00
   1189 			2:00	-	SAST	1990 Mar 21 # independence
   1190 # Vanguard section, for zic and other parsers that support negative DST.
   1191 			2:00	Namibia	%s
   1192 # Rearguard section, for parsers lacking negative DST; see ziguard.awk.
   1193 #			2:00	-	CAT	1994 Mar 21  0:00
   1194 # From Paul Eggert (2017-04-07):
   1195 # The official date of the 2017 rule change was 2017-10-24.  See:
   1196 # http://www.lac.org.na/laws/annoSTAT/Namibian%20Time%20Act%209%20of%202017.pdf
   1197 #			1:00	Namibia	%s	2017 Oct 24
   1198 #			2:00	-	CAT
   1199 # End of rearguard section.
   1200 
   1201 
   1202 # Angola
   1203 # Benin
   1204 # Cameroon
   1205 # Central African Republic
   1206 # Democratic Republic of the Congo (western)
   1207 # Republic of the Congo
   1208 # Equatorial Guinea
   1209 # Gabon
   1210 # Niger
   1211 # Nigeria
   1212 
   1213 # From P Chan (2020-12-03):
   1214 # GMT was adopted as the standard time of Lagos on 1905-07-01.
   1215 # Lagos Weekly Record, 1905-06-24, p 3
   1216 # http://ddsnext.crl.edu/titles/31558#?c=0&m=668&s=0&cv=2&r=0&xywh=1446,5221,1931,1235
   1217 # says "It is officially notified that on and after the 1st of July 1905
   1218 # Greenwich Mean Solar Time will be adopted throughout the Colony and
   1219 # Protectorate, and that it will be necessary to put all clocks 13 minutes and
   1220 # 35 seconds back, recording local mean time."
   1221 #
   1222 # It seemed that Lagos returned to LMT on 1908-07-01.
   1223 # [The Lagos Standard], 1908-07-01, p 5
   1224 # http://ddsnext.crl.edu/titles/31556#?c=0&m=78&s=0&cv=4&r=0&xywh=-92,3590,3944,2523
   1225 # says "Scarcely have the people become accustomed to this new time, when
   1226 # another official notice has now appeared announcing that from and after the
   1227 # 1st July next, return will be made to local mean time."
   1228 #
   1229 # From P Chan (2020-11-27):
   1230 # On 1914-01-01, standard time of GMT+0:30 was adopted for the unified Nigeria.
   1231 # Colonial Reports - Annual. No. 878. Nigeria. Report for 1914. (April 1916),
   1232 # p 27
   1233 # https://libsysdigi.library.illinois.edu/ilharvest/Africana/Books2011-05/3064634/3064634_1914/3064634_1914_opt.pdf#page=27
   1234 # "On January 1st [1914], a universal standard time for Nigeria was adopted,
   1235 # viz., half an hour fast on Greenwich mean time, corresponding to the meridian
   1236 # 7 30' E. long."
   1237 # Lloyd's Register of Shipping (1915) says "Hitherto the time observed in Lagos
   1238 # was the local mean time. On 1st January, 1914, standard time for the whole of
   1239 # Nigeria was introduced ... Lagos time has been advanced about 16 minutes
   1240 # accordingly."
   1241 #
   1242 # In 1919, standard time was changed to GMT+1.
   1243 # Interpretation Ordinance (Cap 2)
   1244 # The Laws of Nigeria, Containing the Ordinances of Nigeria, in Force on the
   1245 # 1st Day of January, 1923, Vol.I [p 16]
   1246 # https://books.google.com/books?id=BOMrAQAAMAAJ&pg=PA16
   1247 # "The expression 'Standard time' means standard time as used in Nigeria:
   1248 # namely, 60 minutes in advance of Greenwich mean time.  (As amended by 18 of
   1249 # 1919, s. 2.)"
   1250 # From Tim Parenti (2020-12-10):
   1251 # The Lagos Weekly Record, 1919-09-20, p 3 details discussion on the first
   1252 # reading of this Bill by the Legislative Council of the Colony of Nigeria on
   1253 # Thursday 1919-08-28:
   1254 # 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
   1255 # "The proposal is that the Globe should be divided into twelve zones East and
   1256 # West of Greenwich, of one hour each, Nigeria falling into the zone with a
   1257 # standard of one hour fast on Greenwich Mean Time.  Nigeria standard time is
   1258 # now 30 minutes in advance of Greenwich Mean Time ... according to the new
   1259 # proposal, standard time will be advanced another 30 minutes".  It was further
   1260 # proposed that the firing of the time guns likewise be adjusted by 30 minutes
   1261 # to compensate.
   1262 # From Tim Parenti (2020-12-10), per P Chan (2020-12-11):
   1263 # The text of Ordinance 18 of 1919, published in Nigeria Gazette, Vol 6, No 52,
   1264 # shows that the change was assented to the following day and took effect "on
   1265 # the 1st day of September, 1919."
   1266 # Nigeria Gazette and Supplements 1919 Jan-Dec, Reference: 73266B-40,
   1267 # img 245-246
   1268 # https://microform.digital/boa/collections/77/volumes/539/nigeria-lagos-1887-1919
   1269 
   1270 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
   1271 Zone	Africa/Lagos	0:13:35 -	LMT	1905 Jul  1
   1272 			0:00	-	GMT	1908 Jul  1
   1273 			0:13:35	-	LMT	1914 Jan  1
   1274 			0:30	-	%z	1919 Sep  1
   1275 			1:00	-	WAT
   1276 
   1277 # So Tom and Prncipe
   1278 
   1279 # See Europe/Lisbon for info about the 1912 transition.
   1280 
   1281 # From Steffen Thorsen (2018-01-08):
   1282 # Multiple sources tell that So Tom changed from UTC to UTC+1 as
   1283 # they entered the year 2018.
   1284 # From Michael Deckers (2018-01-08):
   1285 # the switch is from 01:00 to 02:00 ... [Decree No. 25/2017]
   1286 # http://www.mnec.gov.st/index.php/publicacoes/documentos/file/90-decreto-lei-n-25-2017
   1287 
   1288 # From Vadim Nasardinov (2018-12-29):
   1289 # So Tom and Prncipe is about to do the following on Jan 1, 2019:
   1290 # https://www.stp-press.st/2018/12/05/governo-jesus-ja-decidiu-repor-hora-legal-sao-tomense/
   1291 #
   1292 # From Michael Deckers (2018-12-30):
   1293 # https://www.legis-palop.org/download.jsp?idFile=102818
   1294 # ... [The legal time of the country, which coincides with universal
   1295 # coordinated time, will be reinstituted at 2 o'clock on day 1 of January, 2019.]
   1296 
   1297 Zone	Africa/Sao_Tome	 0:26:56 -	LMT	1884
   1298 		#STDOFF	-0:36:44.68
   1299 			-0:36:45 -	LMT	1912 Jan  1 00:00u # Lisbon MT
   1300 			 0:00	-	GMT	2018 Jan  1 01:00
   1301 			 1:00	-	WAT	2019 Jan  1 02:00
   1302 			 0:00	-	GMT
   1303 
   1304 # Eswatini (Swaziland)
   1305 # Lesotho
   1306 # South Africa
   1307 
   1308 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
   1309 Rule	SA	1942	1943	-	Sep	Sun>=15	2:00	1:00	-
   1310 Rule	SA	1943	1944	-	Mar	Sun>=15	2:00	0	-
   1311 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
   1312 Zone Africa/Johannesburg 1:52:00 -	LMT	1892 Feb 8
   1313 			1:30	-	SAST	1903 Mar
   1314 			2:00	SA	SAST
   1315 #
   1316 # Marion and Prince Edward Is
   1317 # scientific station since 1947
   1318 # no information
   1319 
   1320 # Sudan
   1321 
   1322 # From <http://www.sunanews.net/sn13jane.html>
   1323 # Sudan News Agency (2000-01-13),
   1324 # also reported by Michal De Beukelaer-Dossche via Steffen Thorsen:
   1325 # Clocks will be moved ahead for 60 minutes all over the Sudan as of noon
   1326 # Saturday....  This was announced Thursday by Caretaker State Minister for
   1327 # Manpower Abdul-Rahman Nur-Eddin.
   1328 
   1329 # From Ahmed Atyya, National Telecommunications Corp. (NTC), Sudan (2017-10-17):
   1330 # ... the Republic of Sudan is going to change the time zone from (GMT+3:00)
   1331 # to (GMT+ 2:00) starting from Wednesday 1 November 2017.
   1332 #
   1333 # From Paul Eggert (2017-10-18):
   1334 # A scanned copy (in Arabic) of Cabinet Resolution No. 352 for the
   1335 # year 2017 can be found as an attachment in email today from Yahia
   1336 # Abdalla of NTC, archived at:
   1337 # https://mm.icann.org/pipermail/tz/2017-October/025333.html
   1338 
   1339 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
   1340 Rule	Sudan	1970	only	-	May	 1	0:00	1:00	S
   1341 Rule	Sudan	1970	1985	-	Oct	15	0:00	0	-
   1342 Rule	Sudan	1971	only	-	Apr	30	0:00	1:00	S
   1343 Rule	Sudan	1972	1985	-	Apr	lastSun	0:00	1:00	S
   1344 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
   1345 Zone	Africa/Khartoum	2:10:08 -	LMT	1931
   1346 			2:00	Sudan	CA%sT	2000 Jan 15 12:00
   1347 			3:00	-	EAT	2017 Nov  1
   1348 			2:00	-	CAT
   1349 
   1350 # South Sudan
   1351 
   1352 # From Steffen Thorsen (2021-01-18):
   1353 # "South Sudan will change its time zone by setting the clock back 1
   1354 # hour on February 1, 2021...."
   1355 # from https://eyeradio.org/south-sudan-adopts-new-time-zone-makuei/
   1356 
   1357 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
   1358 Zone	Africa/Juba	2:06:28 -	LMT	1931
   1359 			2:00	Sudan	CA%sT	2000 Jan 15 12:00
   1360 			3:00	-	EAT	2021 Feb  1 00:00
   1361 			2:00	-	CAT
   1362 
   1363 # Tunisia
   1364 
   1365 # From Gwillim Law (2005-04-30):
   1366 # My correspondent, Risto Nyknen, has alerted me to another adoption of DST,
   1367 # this time in Tunisia.  According to Yahoo France News
   1368 # <http://fr.news.yahoo.com/050426/5/4dumk.html>, in a story attributed to AP
   1369 # and dated 2005-04-26, "Tunisia has decided to advance its official time by
   1370 # one hour, starting on Sunday, May 1.  Henceforth, Tunisian time will be
   1371 # UTC+2 instead of UTC+1.  The change will take place at 23:00 UTC next
   1372 # Saturday."  (My translation)
   1373 #
   1374 # From Oscar van Vlijmen (2005-05-02):
   1375 # La Presse, the first national daily newspaper ...
   1376 # http://www.lapresse.tn/archives/archives280405/actualites/lheure.html
   1377 # ... DST for 2005: on: Sun May 1 0h standard time, off: Fri Sept. 30,
   1378 # 1h standard time.
   1379 #
   1380 # From Atef Loukil (2006-03-28):
   1381 # The daylight saving time will be the same each year:
   1382 # Beginning      : the last Sunday of March at 02:00
   1383 # Ending         : the last Sunday of October at 03:00 ...
   1384 # http://www.tap.info.tn/en/index.php?option=com_content&task=view&id=1188&Itemid=50
   1385 
   1386 # From Steffen Thorsen (2009-03-16):
   1387 # According to several news sources, Tunisia will not observe DST this year.
   1388 # (Arabic)
   1389 # http://www.elbashayer.com/?page=viewn&nid=42546
   1390 # https://www.babnet.net/kiwidetail-15295.asp
   1391 #
   1392 # We have also confirmed this with the US embassy in Tunisia.
   1393 # We have a wrap-up about this on the following page:
   1394 # https://www.timeanddate.com/news/time/tunisia-cancels-dst-2009.html
   1395 
   1396 # From Alexander Krivenyshev (2009-03-17):
   1397 # Here is a link to Tunis Afrique Presse News Agency
   1398 #
   1399 # Standard time to be kept the whole year long (tap.info.tn):
   1400 #
   1401 # (in English)
   1402 # http://www.tap.info.tn/en/index.php?option=com_content&task=view&id=26813&Itemid=157
   1403 #
   1404 # (in Arabic)
   1405 # http://www.tap.info.tn/ar/index.php?option=com_content&task=view&id=61240&Itemid=1
   1406 
   1407 # From Arthur David Olson (2009-03-18):
   1408 # The Tunis Afrique Presse News Agency notice contains this: "This measure is
   1409 # due to the fact that the fasting month of Ramadan coincides with the period
   1410 # concerned by summer time.  Therefore, the standard time will be kept
   1411 # unchanged the whole year long."  So foregoing DST seems to be an exception
   1412 # (albeit one that may be repeated in the future).
   1413 
   1414 # From Alexander Krivenyshev (2010-03-27):
   1415 # According to some news reports Tunis confirmed not to use DST in 2010
   1416 #
   1417 # (translation):
   1418 # "The Tunisian government has decided to abandon DST, which was scheduled on
   1419 # Sunday...
   1420 # Tunisian authorities had suspended the DST for the first time last year also
   1421 # coincided with the month of Ramadan..."
   1422 #
   1423 # (in Arabic)
   1424 # http://www.moheet.com/show_news.aspx?nid=358861&pg=1
   1425 # http://www.almadenahnews.com/newss/news.php?c=118&id=38036
   1426 # http://www.worldtimezone.com/dst_news/dst_news_tunis02.html
   1427 
   1428 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
   1429 Rule	Tunisia	1939	only	-	Apr	15	23:00s	1:00	S
   1430 Rule	Tunisia	1939	only	-	Nov	18	23:00s	0	-
   1431 Rule	Tunisia	1940	only	-	Feb	25	23:00s	1:00	S
   1432 Rule	Tunisia	1941	only	-	Oct	 6	 0:00	0	-
   1433 Rule	Tunisia	1942	only	-	Mar	 9	 0:00	1:00	S
   1434 Rule	Tunisia	1942	only	-	Nov	 2	 3:00	0	-
   1435 Rule	Tunisia	1943	only	-	Mar	29	 2:00	1:00	S
   1436 Rule	Tunisia	1943	only	-	Apr	17	 2:00	0	-
   1437 Rule	Tunisia	1943	only	-	Apr	25	 2:00	1:00	S
   1438 Rule	Tunisia	1943	only	-	Oct	 4	 2:00	0	-
   1439 Rule	Tunisia	1944	1945	-	Apr	Mon>=1	 2:00	1:00	S
   1440 Rule	Tunisia	1944	only	-	Oct	 8	 0:00	0	-
   1441 Rule	Tunisia	1945	only	-	Sep	16	 0:00	0	-
   1442 Rule	Tunisia	1977	only	-	Apr	30	 0:00s	1:00	S
   1443 Rule	Tunisia	1977	only	-	Sep	24	 0:00s	0	-
   1444 Rule	Tunisia	1978	only	-	May	 1	 0:00s	1:00	S
   1445 Rule	Tunisia	1978	only	-	Oct	 1	 0:00s	0	-
   1446 Rule	Tunisia	1988	only	-	Jun	 1	 0:00s	1:00	S
   1447 Rule	Tunisia	1988	1990	-	Sep	lastSun	 0:00s	0	-
   1448 Rule	Tunisia	1989	only	-	Mar	26	 0:00s	1:00	S
   1449 Rule	Tunisia	1990	only	-	May	 1	 0:00s	1:00	S
   1450 Rule	Tunisia	2005	only	-	May	 1	 0:00s	1:00	S
   1451 Rule	Tunisia	2005	only	-	Sep	30	 1:00s	0	-
   1452 Rule	Tunisia	2006	2008	-	Mar	lastSun	 2:00s	1:00	S
   1453 Rule	Tunisia	2006	2008	-	Oct	lastSun	 2:00s	0	-
   1454 
   1455 # See Europe/Paris commentary for PMT-related transitions.
   1456 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
   1457 Zone	Africa/Tunis	0:40:44 -	LMT	1881 May 12
   1458 			0:09:21	-	PMT	1911 Mar 11 # Paris Mean Time
   1459 			1:00	Tunisia	CE%sT
   1460