4 # This code is free software; you can redistribute it and/or modify it
5 # under the terms of the GNU General Public License version 2 only, as
6 # published by the Free Software Foundation. Oracle designates this
7 # particular file as subject to the "Classpath" exception as provided
8 # by Oracle in the LICENSE file that accompanied this code.
9 #
10 # This code is distributed in the hope that it will be useful, but WITHOUT
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 # version 2 for more details (a copy is included in the LICENSE file that
14 # accompanied this code).
15 #
16 # You should have received a copy of the GNU General Public License version
17 # 2 along with this work; if not, write to the Free Software Foundation,
18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 #
20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 # or visit www.oracle.com if you need additional information or have any
22 # questions.
23 #
24 # This file is in the public domain, so clarified as of
25 # 2009-05-17 by Arthur David Olson.
26
27 # This file is by no means authoritative; if you think you know better,
28 # go ahead and edit the file (and please send any changes to
29 # tz@iana.org for general use in the future). For more, please see
30 # the file CONTRIBUTING in the tz distribution.
31
32 # From Paul Eggert (2017-04-09):
33 #
34 # Unless otherwise specified, the source for data through 1990 is:
35 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
36 # San Diego: ACS Publications, Inc. (2003).
37 # Unfortunately this book contains many errors and cites no sources.
38 #
39 # Many years ago Gwillim Law wrote that a good source
40 # for time zone data was the International Air Transport
41 # Association's Standard Schedules Information Manual (IATA SSIM),
42 # published semiannually. Law sent in several helpful summaries
43 # of the IATA's data after 1990. Except where otherwise noted,
44 # IATA SSIM is the source for entries after 1990.
45 #
46 # Another source occasionally used is Edward W. Whitman, World Time Differences,
47 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
48 # I found in the UCLA library.
49 #
50 # For data circa 1899, a common source is:
51 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
52 # https://www.jstor.org/stable/1774359
57 # European-style abbreviations are commonly used along the Mediterranean.
58 # For sub-Saharan Africa abbreviations were less standardized.
59 # Previous editions of this database used WAT, CAT, SAT, and EAT
60 # for UT +00 through +03, respectively,
61 # but in 1997 Mark R V Murray reported that
62 # 'SAST' is the official abbreviation for +02 in the country of South Africa,
63 # 'CAT' is commonly used for +02 in countries north of South Africa, and
64 # 'WAT' is probably the best name for +01, as the common phrase for
65 # the area that includes Nigeria is "West Africa".
66 #
67 # To summarize, the following abbreviations seemed to have some currency:
68 # +00 GMT Greenwich Mean Time
69 # +02 CAT Central Africa Time
70 # +02 SAST South Africa Standard Time
71 # and Murray suggested the following abbreviation:
72 # +01 WAT West Africa Time
73 # Murray's suggestion seems to have caught on in news reports and the like.
74 # I vaguely recall 'WAT' also being used for -01 in the past but
75 # cannot now come up with solid citations.
76 #
77 # I invented the following abbreviations; corrections are welcome!
78 # +02 WAST West Africa Summer Time (no longer used)
79 # +03 CAST Central Africa Summer Time (no longer used)
80 # +03 SAST South Africa Summer Time (no longer used)
81 # +03 EAT East Africa Time
82 # 'EAT' also seems to have caught on; the others are rare but are paired
83 # with better-attested non-DST abbreviations.
84
85 # Algeria
86 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
87 Rule Algeria 1916 only - Jun 14 23:00s 1:00 S
88 Rule Algeria 1916 1919 - Oct Sun>=1 23:00s 0 -
89 Rule Algeria 1917 only - Mar 24 23:00s 1:00 S
90 Rule Algeria 1918 only - Mar 9 23:00s 1:00 S
91 Rule Algeria 1919 only - Mar 1 23:00s 1:00 S
92 Rule Algeria 1920 only - Feb 14 23:00s 1:00 S
93 Rule Algeria 1920 only - Oct 23 23:00s 0 -
94 Rule Algeria 1921 only - Mar 14 23:00s 1:00 S
95 Rule Algeria 1921 only - Jun 21 23:00s 0 -
96 Rule Algeria 1939 only - Sep 11 23:00s 1:00 S
97 Rule Algeria 1939 only - Nov 19 1:00 0 -
98 Rule Algeria 1944 1945 - Apr Mon>=1 2:00 1:00 S
99 Rule Algeria 1944 only - Oct 8 2:00 0 -
100 Rule Algeria 1945 only - Sep 16 1:00 0 -
101 Rule Algeria 1971 only - Apr 25 23:00s 1:00 S
102 Rule Algeria 1971 only - Sep 26 23:00s 0 -
103 Rule Algeria 1977 only - May 6 0:00 1:00 S
368 Rule Egypt 2008 only - Aug lastThu 24:00 0 -
369 Rule Egypt 2009 only - Aug 20 24:00 0 -
370 Rule Egypt 2010 only - Aug 10 24:00 0 -
371 Rule Egypt 2010 only - Sep 9 24:00 1:00 S
372 Rule Egypt 2010 only - Sep lastThu 24:00 0 -
373 Rule Egypt 2014 only - May 15 24:00 1:00 S
374 Rule Egypt 2014 only - Jun 26 24:00 0 -
375 Rule Egypt 2014 only - Jul 31 24:00 1:00 S
376 Rule Egypt 2014 only - Sep lastThu 24:00 0 -
377
378 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
379 Zone Africa/Cairo 2:05:09 - LMT 1900 Oct
380 2:00 Egypt EE%sT
381
382 # Equatorial Guinea
383 # See Africa/Lagos.
384
385 # Eritrea
386 # Ethiopia
387 # See Africa/Nairobi.
388
389 # Gabon
390 # See Africa/Lagos.
391
392 # Gambia
393 # See Africa/Abidjan.
394
395 # Ghana
396
397 # From Paul Eggert (2018-01-30):
398 # Whitman says DST was observed from 1931 to "the present";
399 # Shanks & Pottenger say 1936 to 1942 with 20 minutes of DST,
400 # with transitions on 09-01 and 12-31 at 00:00.
401 # Page 33 of Parish GCB, Colonial Reports - Annual. No. 1066. Gold
402 # Coast. Report for 1919. (March 1921), OCLC 784024077
403 # http://libsysdigi.library.illinois.edu/ilharvest/africana/books2011-05/5530214/5530214_1919/5530214_1919_opt.pdf
404 # lists the Determination of the Time Ordinance, 1919, No. 18,
405 # "to advance the time observed locally by the space of twenty minutes
406 # during the last four months of each year; the object in view being
407 # to extend during those months the period of daylight-time available
|
4 # This code is free software; you can redistribute it and/or modify it
5 # under the terms of the GNU General Public License version 2 only, as
6 # published by the Free Software Foundation. Oracle designates this
7 # particular file as subject to the "Classpath" exception as provided
8 # by Oracle in the LICENSE file that accompanied this code.
9 #
10 # This code is distributed in the hope that it will be useful, but WITHOUT
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 # version 2 for more details (a copy is included in the LICENSE file that
14 # accompanied this code).
15 #
16 # You should have received a copy of the GNU General Public License version
17 # 2 along with this work; if not, write to the Free Software Foundation,
18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 #
20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 # or visit www.oracle.com if you need additional information or have any
22 # questions.
23 #
24 # tzdb data for Africa and environs
25
26 # This file is in the public domain, so clarified as of
27 # 2009-05-17 by Arthur David Olson.
28
29 # This file is by no means authoritative; if you think you know better,
30 # go ahead and edit the file (and please send any changes to
31 # tz@iana.org for general use in the future). For more, please see
32 # the file CONTRIBUTING in the tz distribution.
33
34 # From Paul Eggert (2018-05-27):
35 #
36 # Unless otherwise specified, the source for data through 1990 is:
37 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
38 # San Diego: ACS Publications, Inc. (2003).
39 # Unfortunately this book contains many errors and cites no sources.
40 #
41 # Many years ago Gwillim Law wrote that a good source
42 # for time zone data was the International Air Transport
43 # Association's Standard Schedules Information Manual (IATA SSIM),
44 # published semiannually. Law sent in several helpful summaries
45 # of the IATA's data after 1990. Except where otherwise noted,
46 # IATA SSIM is the source for entries after 1990.
47 #
48 # Another source occasionally used is Edward W. Whitman, World Time Differences,
49 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
50 # I found in the UCLA library.
51 #
52 # For data circa 1899, a common source is:
53 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
54 # https://www.jstor.org/stable/1774359
59 # European-style abbreviations are commonly used along the Mediterranean.
60 # For sub-Saharan Africa abbreviations were less standardized.
61 # Previous editions of this database used WAT, CAT, SAT, and EAT
62 # for UT +00 through +03, respectively,
63 # but in 1997 Mark R V Murray reported that
64 # 'SAST' is the official abbreviation for +02 in the country of South Africa,
65 # 'CAT' is commonly used for +02 in countries north of South Africa, and
66 # 'WAT' is probably the best name for +01, as the common phrase for
67 # the area that includes Nigeria is "West Africa".
68 #
69 # To summarize, the following abbreviations seemed to have some currency:
70 # +00 GMT Greenwich Mean Time
71 # +02 CAT Central Africa Time
72 # +02 SAST South Africa Standard Time
73 # and Murray suggested the following abbreviation:
74 # +01 WAT West Africa Time
75 # Murray's suggestion seems to have caught on in news reports and the like.
76 # I vaguely recall 'WAT' also being used for -01 in the past but
77 # cannot now come up with solid citations.
78 #
79 # I invented the following abbreviations in the 1990s:
80 # +02 WAST West Africa Summer Time
81 # +03 CAST Central Africa Summer Time
82 # +03 SAST South Africa Summer Time
83 # +03 EAT East Africa Time
84 # 'EAT' seems to have caught on and is in current timestamps, and though
85 # the other abbreviations are rarer and are only in past timestamps,
86 # they are paired with better-attested non-DST abbreviations.
87 # Corrections are welcome.
88
89 # Algeria
90 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
91 Rule Algeria 1916 only - Jun 14 23:00s 1:00 S
92 Rule Algeria 1916 1919 - Oct Sun>=1 23:00s 0 -
93 Rule Algeria 1917 only - Mar 24 23:00s 1:00 S
94 Rule Algeria 1918 only - Mar 9 23:00s 1:00 S
95 Rule Algeria 1919 only - Mar 1 23:00s 1:00 S
96 Rule Algeria 1920 only - Feb 14 23:00s 1:00 S
97 Rule Algeria 1920 only - Oct 23 23:00s 0 -
98 Rule Algeria 1921 only - Mar 14 23:00s 1:00 S
99 Rule Algeria 1921 only - Jun 21 23:00s 0 -
100 Rule Algeria 1939 only - Sep 11 23:00s 1:00 S
101 Rule Algeria 1939 only - Nov 19 1:00 0 -
102 Rule Algeria 1944 1945 - Apr Mon>=1 2:00 1:00 S
103 Rule Algeria 1944 only - Oct 8 2:00 0 -
104 Rule Algeria 1945 only - Sep 16 1:00 0 -
105 Rule Algeria 1971 only - Apr 25 23:00s 1:00 S
106 Rule Algeria 1971 only - Sep 26 23:00s 0 -
107 Rule Algeria 1977 only - May 6 0:00 1:00 S
372 Rule Egypt 2008 only - Aug lastThu 24:00 0 -
373 Rule Egypt 2009 only - Aug 20 24:00 0 -
374 Rule Egypt 2010 only - Aug 10 24:00 0 -
375 Rule Egypt 2010 only - Sep 9 24:00 1:00 S
376 Rule Egypt 2010 only - Sep lastThu 24:00 0 -
377 Rule Egypt 2014 only - May 15 24:00 1:00 S
378 Rule Egypt 2014 only - Jun 26 24:00 0 -
379 Rule Egypt 2014 only - Jul 31 24:00 1:00 S
380 Rule Egypt 2014 only - Sep lastThu 24:00 0 -
381
382 # Zone NAME GMTOFF RULES FORMAT [UNTIL]
383 Zone Africa/Cairo 2:05:09 - LMT 1900 Oct
384 2:00 Egypt EE%sT
385
386 # Equatorial Guinea
387 # See Africa/Lagos.
388
389 # Eritrea
390 # Ethiopia
391 # See Africa/Nairobi.
392 #
393 # Unfortunately tzdb records only Western clock time in use in Ethiopia,
394 # as the tzdb format is not up to properly recording a common Ethiopian
395 # timekeeping practice that is based on solar time. See:
396 # Mortada D. If you have a meeting in Ethiopia, you'd better double
397 # check the time. PRI's The World. 2015-01-30 15:15 -05.
398 # https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-better-double-check-time
399
400 # Gabon
401 # See Africa/Lagos.
402
403 # Gambia
404 # See Africa/Abidjan.
405
406 # Ghana
407
408 # From Paul Eggert (2018-01-30):
409 # Whitman says DST was observed from 1931 to "the present";
410 # Shanks & Pottenger say 1936 to 1942 with 20 minutes of DST,
411 # with transitions on 09-01 and 12-31 at 00:00.
412 # Page 33 of Parish GCB, Colonial Reports - Annual. No. 1066. Gold
413 # Coast. Report for 1919. (March 1921), OCLC 784024077
414 # http://libsysdigi.library.illinois.edu/ilharvest/africana/books2011-05/5530214/5530214_1919/5530214_1919_opt.pdf
415 # lists the Determination of the Time Ordinance, 1919, No. 18,
416 # "to advance the time observed locally by the space of twenty minutes
417 # during the last four months of each year; the object in view being
418 # to extend during those months the period of daylight-time available
|