Print this page
8147 Update zoneinfo to 2017b

Split Close
Expand all
Collapse all
          --- old/usr/src/data/zoneinfo/africa
          +++ new/usr/src/data/zoneinfo/africa
   1    1  # This file is in the public domain, so clarified as of
   2    2  # 2009-05-17 by Arthur David Olson.
   3    3  
   4    4  # This file is by no means authoritative; if you think you know better,
   5    5  # go ahead and edit the file (and please send any changes to
   6    6  # tz@iana.org for general use in the future).  For more, please see
   7    7  # the file CONTRIBUTING in the tz distribution.
   8    8  
   9      -# From Paul Eggert (2014-10-31):
        9 +# From Paul Eggert (2017-02-20):
  10   10  #
  11   11  # Unless otherwise specified, the source for data through 1990 is:
  12   12  # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
  13   13  # San Diego: ACS Publications, Inc. (2003).
  14   14  # Unfortunately this book contains many errors and cites no sources.
  15   15  #
  16      -# Gwillim Law writes that a good source
  17      -# for recent time zone data is the International Air Transport
       16 +# Many years ago Gwillim Law wrote that a good source
       17 +# for time zone data was the International Air Transport
  18   18  # Association's Standard Schedules Information Manual (IATA SSIM),
  19   19  # published semiannually.  Law sent in several helpful summaries
  20   20  # of the IATA's data after 1990.  Except where otherwise noted,
  21   21  # IATA SSIM is the source for entries after 1990.
  22   22  #
  23   23  # Another source occasionally used is Edward W. Whitman, World Time Differences,
  24   24  # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
  25   25  # I found in the UCLA library.
  26   26  #
  27   27  # For data circa 1899, a common source is:
  28   28  # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
  29   29  # http://www.jstor.org/stable/1774359
  30   30  #
  31   31  # A reliable and entertaining source about time zones is
  32   32  # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
  33   33  #
       34 +# European-style abbreviations are commonly used along the Mediterranean.
       35 +# For sub-Saharan Africa abbreviations were less standardized.
  34   36  # Previous editions of this database used WAT, CAT, SAT, and EAT
  35      -# for +0:00 through +3:00, respectively,
  36      -# but Mark R V Murray reports that
  37      -# 'SAST' is the official abbreviation for +2:00 in the country of South Africa,
  38      -# 'CAT' is commonly used for +2:00 in countries north of South Africa, and
  39      -# 'WAT' is probably the best name for +1:00, as the common phrase for
       37 +# for UT +00 through +03, respectively,
       38 +# but in 1997 Mark R V Murray reported that
       39 +# 'SAST' is the official abbreviation for +02 in the country of South Africa,
       40 +# 'CAT' is commonly used for +02 in countries north of South Africa, and
       41 +# 'WAT' is probably the best name for +01, as the common phrase for
  40   42  # the area that includes Nigeria is "West Africa".
  41      -# He has heard of "Western Sahara Time" for +0:00 but can find no reference.
  42   43  #
  43      -# To make things confusing, 'WAT' seems to have been used for -1:00 long ago;
  44      -# I'd guess that this was because people needed _some_ name for -1:00,
  45      -# and at the time, far west Africa was the only major land area in -1:00.
  46      -# This usage is now obsolete, as the last use of -1:00 on the African
  47      -# mainland seems to have been 1976 in Western Sahara.
       44 +# To summarize, the following abbreviations seemed to have some currency:
       45 +#        +00    GMT     Greenwich Mean Time
       46 +#        +02    CAT     Central Africa Time
       47 +#        +02    SAST    South Africa Standard Time
       48 +# and Murray suggested the following abbreviation:
       49 +#        +01    WAT     West Africa Time
       50 +# Murray's suggestion seems to have caught on in news reports and the like.
       51 +# I vaguely recall 'WAT' also being used for -01 in the past but
       52 +# cannot now come up with solid citations.
  48   53  #
  49      -# To summarize, the following abbreviations seem to have some currency:
  50      -#       -1:00   WAT     West Africa Time (no longer used)
  51      -#        0:00   GMT     Greenwich Mean Time
  52      -#        2:00   CAT     Central Africa Time
  53      -#        2:00   SAST    South Africa Standard Time
  54      -# and Murray suggests the following abbreviation:
  55      -#        1:00   WAT     West Africa Time
  56      -# I realize that this leads to 'WAT' being used for both -1:00 and 1:00
  57      -# for times before 1976, but this is the best I can think of
  58      -# until we get more information.
  59      -#
  60   54  # I invented the following abbreviations; corrections are welcome!
  61      -#        2:00   WAST    West Africa Summer Time
  62      -#        2:30   BEAT    British East Africa Time (no longer used)
  63      -#        2:45   BEAUT   British East Africa Unified Time (no longer used)
  64      -#        3:00   CAST    Central Africa Summer Time (no longer used)
  65      -#        3:00   SAST    South Africa Summer Time (no longer used)
  66      -#        3:00   EAT     East Africa Time
       55 +#        +02    WAST    West Africa Summer Time
       56 +#        +03    CAST    Central Africa Summer Time (no longer used)
       57 +#        +03    SAST    South Africa Summer Time (no longer used)
       58 +#        +03    EAT     East Africa Time
       59 +# 'EAT' also seems to have caught on; the others are rare but are paired
       60 +# with better-attested non-DST abbreviations.
  67   61  
  68   62  # Algeria
  69   63  # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
  70   64  Rule    Algeria 1916    only    -       Jun     14      23:00s  1:00    S
  71   65  Rule    Algeria 1916    1919    -       Oct     Sun>=1  23:00s  0       -
  72   66  Rule    Algeria 1917    only    -       Mar     24      23:00s  1:00    S
  73   67  Rule    Algeria 1918    only    -       Mar      9      23:00s  1:00    S
  74   68  Rule    Algeria 1919    only    -       Mar      1      23:00s  1:00    S
  75   69  Rule    Algeria 1920    only    -       Feb     14      23:00s  1:00    S
  76   70  Rule    Algeria 1920    only    -       Oct     23      23:00s  0       -
↓ open down ↓ 35 lines elided ↑ open up ↑
 112  106  
 113  107  # Burkina Faso
 114  108  # See Africa/Abidjan.
 115  109  
 116  110  # Burundi
 117  111  # See Africa/Maputo.
 118  112  
 119  113  # Cameroon
 120  114  # See Africa/Lagos.
 121  115  
 122      -# Cape Verde
      116 +# Cape Verde / Cabo Verde
 123  117  #
 124      -# Shanks gives 1907 for the transition to CVT.
      118 +# Shanks gives 1907 for the transition to +02.
 125  119  # Perhaps the 1911-05-26 Portuguese decree
 126      -# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
      120 +# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
 127  121  # merely made it official?
 128  122  #
 129  123  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 130  124  Zone Atlantic/Cape_Verde -1:34:04 -     LMT     1907        # Praia
 131      -                        -2:00   -       CVT     1942 Sep
 132      -                        -2:00   1:00    CVST    1945 Oct 15
 133      -                        -2:00   -       CVT     1975 Nov 25  2:00
 134      -                        -1:00   -       CVT
      125 +                        -2:00   -       -02     1942 Sep
      126 +                        -2:00   1:00    -01     1945 Oct 15
      127 +                        -2:00   -       -02     1975 Nov 25  2:00
      128 +                        -1:00   -       -01
 135  129  
 136  130  # Central African Republic
 137  131  # See Africa/Lagos.
 138  132  
 139  133  # Chad
 140  134  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 141  135  Zone    Africa/Ndjamena 1:00:12 -       LMT     1912        # N'Djamena
 142  136                          1:00    -       WAT     1979 Oct 14
 143  137                          1:00    1:00    WAST    1980 Mar  8
 144  138                          1:00    -       WAT
↓ open down ↓ 236 lines elided ↑ open up ↑
 381  375  # Whitman says DST was observed from 1931 to "the present";
 382  376  # Shanks & Pottenger say 1936 to 1942;
 383  377  # and September 1 to January 1 is given by:
 384  378  # Scott Keltie J, Epstein M (eds), The Statesman's Year-Book,
 385  379  # 57th ed. Macmillan, London (1920), OCLC 609408015, pp xxviii.
 386  380  # For lack of better info, assume DST was observed from 1920 to 1942.
 387  381  Rule    Ghana   1920    1942    -       Sep      1      0:00    0:20    GHST
 388  382  Rule    Ghana   1920    1942    -       Dec     31      0:00    0       GMT
 389  383  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 390  384  Zone    Africa/Accra    -0:00:52 -      LMT     1918
 391      -                         0:00   Ghana   %s
      385 +                         0:00   Ghana   GMT/+0020
 392  386  
 393  387  # Guinea
 394  388  # See Africa/Abidjan.
 395  389  
 396  390  # Guinea-Bissau
 397  391  #
 398  392  # Shanks gives 1911-05-26 for the transition to WAT,
 399  393  # evidently confusing the date of the Portuguese decree
 400      -# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
      394 +# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
 401  395  # with the date that it took effect, namely 1912-01-01.
 402  396  #
 403  397  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 404  398  Zone    Africa/Bissau   -1:02:20 -      LMT     1912 Jan  1
 405      -                        -1:00   -       WAT     1975
      399 +                        -1:00   -       -01     1975
 406  400                           0:00   -       GMT
 407  401  
 408  402  # Kenya
 409  403  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 410  404  Zone    Africa/Nairobi  2:27:16 -       LMT     1928 Jul
 411  405                          3:00    -       EAT     1930
 412      -                        2:30    -       BEAT    1940
 413      -                        2:45    -       BEAUT   1960
      406 +                        2:30    -       +0230   1940
      407 +                        2:45    -       +0245   1960
 414  408                          3:00    -       EAT
 415  409  Link Africa/Nairobi Africa/Addis_Ababa   # Ethiopia
 416  410  Link Africa/Nairobi Africa/Asmara        # Eritrea
 417  411  Link Africa/Nairobi Africa/Dar_es_Salaam # Tanzania
 418  412  Link Africa/Nairobi Africa/Djibouti
 419  413  Link Africa/Nairobi Africa/Kampala       # Uganda
 420  414  Link Africa/Nairobi Africa/Mogadishu     # Somalia
 421  415  Link Africa/Nairobi Indian/Antananarivo  # Madagascar
 422  416  Link Africa/Nairobi Indian/Comoro
 423  417  Link Africa/Nairobi Indian/Mayotte
 424  418  
 425  419  # Lesotho
 426  420  # See Africa/Johannesburg.
 427  421  
 428  422  # Liberia
 429      -# From Paul Eggert (2006-03-22):
 430      -# In 1972 Liberia was the last country to switch
 431      -# from a UTC offset that was not a multiple of 15 or 20 minutes.
 432      -# Howse reports that it was in honor of their president's birthday.
 433      -# Shank & Pottenger report the date as May 1, whereas Howse reports Jan;
 434      -# go with Shanks & Pottenger.
 435      -# For Liberia before 1972, Shanks & Pottenger report -0:44, whereas Howse and
 436      -# Whitman each report -0:44:30; go with the more precise figure.
      423 +#
      424 +# From Paul Eggert (2017-03-02):
      425 +#
      426 +# The Nautical Almanac for the Year 1970, p 264, is the source for -0:44:30.
      427 +#
      428 +# In 1972 Liberia was the last country to switch from a UTC offset
      429 +# that was not a multiple of 15 or 20 minutes.  The 1972 change was on
      430 +# 1972-01-07, according to an entry dated 1972-01-04 on p 330 of:
      431 +# Presidential Papers: First year of the administration of
      432 +# President William R. Tolbert, Jr., July 23, 1971-July 31, 1972.
      433 +# Monrovia: Executive Mansion.
      434 +#
      435 +# Use the abbreviation "MMT" before 1972, as the more-accurate numeric
      436 +# abbreviation "-004430" would be one byte over the POSIX limit.
      437 +#
 437  438  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 438  439  Zone    Africa/Monrovia -0:43:08 -      LMT     1882
 439  440                          -0:43:08 -      MMT     1919 Mar # Monrovia Mean Time
 440      -                        -0:44:30 -      LRT     1972 May # Liberia Time
      441 +                        -0:44:30 -      MMT     1972 Jan 7 # approximately MMT
 441  442                           0:00   -       GMT
 442  443  
 443  444  ###############################################################################
 444  445  
 445  446  # Libya
 446  447  
 447  448  # From Even Scharning (2012-11-10):
 448  449  # Libya set their time one hour back at 02:00 on Saturday November 10.
 449  450  # http://www.libyaherald.com/2012/11/04/clocks-to-go-back-an-hour-on-saturday/
 450  451  # Here is an official source [in Arabic]: http://ls.ly/fb6Yc
↓ open down ↓ 138 lines elided ↑ open up ↑
 589  590  # "The trial ended on March 29, 2009, when the clocks moved back by one hour
 590  591  # at 2am (or 02:00) local time..."
 591  592  
 592  593  # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 593  594  Rule Mauritius  1982    only    -       Oct     10      0:00    1:00    S
 594  595  Rule Mauritius  1983    only    -       Mar     21      0:00    0       -
 595  596  Rule Mauritius  2008    only    -       Oct     lastSun 2:00    1:00    S
 596  597  Rule Mauritius  2009    only    -       Mar     lastSun 2:00    0       -
 597  598  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 598  599  Zone Indian/Mauritius   3:50:00 -       LMT     1907 # Port Louis
 599      -                        4:00 Mauritius  MU%sT   # Mauritius Time
      600 +                        4:00 Mauritius  +04/+05
 600  601  # Agalega Is, Rodriguez
 601  602  # no information; probably like Indian/Mauritius
 602  603  
 603  604  # Mayotte
 604  605  # See Africa/Nairobi.
 605  606  
 606  607  # Morocco
 607  608  # See the 'europe' file for Spanish Morocco (Africa/Ceuta).
 608  609  
 609  610  # From Alex Krivenyshev (2008-05-09):
↓ open down ↓ 298 lines elided ↑ open up ↑
 908  909  # From Gwillim Law (2013-10-22):
 909  910  # A correspondent who is usually well informed about time zone matters
 910  911  # ... says that Western Sahara observes daylight saving time, just as
 911  912  # Morocco does.
 912  913  #
 913  914  # From Paul Eggert (2013-10-23):
 914  915  # Assume that this has been true since Western Sahara switched to GMT,
 915  916  # since most of it was then controlled by Morocco.
 916  917  
 917  918  Zone Africa/El_Aaiun    -0:52:48 -      LMT     1934 Jan # El Aaiún
 918      -                        -1:00   -       WAT     1976 Apr 14
      919 +                        -1:00   -       -01     1976 Apr 14
 919  920                           0:00   Morocco WE%sT
 920  921  
 921  922  # Mozambique
 922  923  #
 923  924  # Shanks gives 1903-03-01 for the transition to CAT.
 924  925  # Perhaps the 1911-05-26 Portuguese decree
 925      -# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
      926 +# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
 926  927  # merely made it official?
 927  928  #
 928  929  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 929  930  Zone    Africa/Maputo   2:10:20 -       LMT     1903 Mar
 930  931                          2:00    -       CAT
 931  932  Link Africa/Maputo Africa/Blantyre      # Malawi
 932  933  Link Africa/Maputo Africa/Bujumbura     # Burundi
 933  934  Link Africa/Maputo Africa/Gaborone      # Botswana
 934  935  Link Africa/Maputo Africa/Harare        # Zimbabwe
 935  936  Link Africa/Maputo Africa/Kigali        # Rwanda
↓ open down ↓ 6 lines elided ↑ open up ↑
 942  943  
 943  944  # From Petronella Sibeene (2007-03-30):
 944  945  # http://allafrica.com/stories/200703300178.html
 945  946  # While the entire country changes its time, Katima Mulilo and other
 946  947  # settlements in Caprivi unofficially will not because the sun there
 947  948  # rises and sets earlier compared to other regions.  Chief of
 948  949  # Forecasting Riaan van Zyl explained that the far eastern parts of
 949  950  # the country are close to 40 minutes earlier in sunrise than the rest
 950  951  # of the country.
 951  952  #
 952      -# From Paul Eggert (2007-03-31):
 953      -# Apparently the Caprivi Strip informally observes Botswana time, but
 954      -# we have no details.  In the meantime people there can use Africa/Gaborone.
      953 +# From Paul Eggert (2017-02-22):
      954 +# Although the Zambezi Region (formerly known as Caprivi) informally
      955 +# observes Botswana time, we have no details about historical practice.
      956 +# In the meantime people there can use Africa/Gaborone.
      957 +# See: Immanuel S. The Namibian. 2017-02-23.
      958 +# http://www.namibian.com.na/51480/read/Time-change-divides-lawmakers
 955  959  
 956  960  # RULE  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 957  961  Rule    Namibia 1994    max     -       Sep     Sun>=1  2:00    1:00    S
 958  962  Rule    Namibia 1995    max     -       Apr     Sun>=1  2:00    0       -
 959  963  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 960  964  Zone    Africa/Windhoek 1:08:24 -       LMT     1892 Feb 8
 961      -                        1:30    -       SWAT    1903 Mar    # SW Africa Time
      965 +                        1:30    -       +0130   1903 Mar
 962  966                          2:00    -       SAST    1942 Sep 20  2:00
 963  967                          2:00    1:00    SAST    1943 Mar 21  2:00
 964  968                          2:00    -       SAST    1990 Mar 21 # independence
 965  969                          2:00    -       CAT     1994 Apr  3
 966  970                          1:00    Namibia WA%sT
 967  971  
 968  972  # Niger
 969  973  # See Africa/Lagos.
 970  974  
 971  975  # Nigeria
↓ open down ↓ 6 lines elided ↑ open up ↑
 978  982  Link Africa/Lagos Africa/Kinshasa    # Dem. Rep. of the Congo (west)
 979  983  Link Africa/Lagos Africa/Libreville  # Gabon
 980  984  Link Africa/Lagos Africa/Luanda      # Angola
 981  985  Link Africa/Lagos Africa/Malabo      # Equatorial Guinea
 982  986  Link Africa/Lagos Africa/Niamey      # Niger
 983  987  Link Africa/Lagos Africa/Porto-Novo  # Benin
 984  988  
 985  989  # Réunion
 986  990  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 987  991  Zone    Indian/Reunion  3:41:52 -       LMT     1911 Jun # Saint-Denis
 988      -                        4:00    -       RET     # Réunion Time
      992 +                        4:00    -       +04
 989  993  #
 990  994  # Crozet Islands also observes Réunion time; see the 'antarctica' file.
 991  995  #
 992  996  # Scattered Islands (Îles Éparses) administered from Réunion are as follows.
 993  997  # The following information about them is taken from
 994  998  # Îles Éparses (<http://www.outre-mer.gouv.fr/domtom/ile.htm>, 1997-07-22,
 995  999  # in French; no longer available as of 1999-08-17).
 996 1000  # We have no info about their time zone histories.
 997 1001  #
 998 1002  # Bassas da India - uninhabited
↓ open down ↓ 14 lines elided ↑ open up ↑
1013 1017  #               on GMT, says the CIA
1014 1018  #       Inaccessible, Nightingale: uninhabited
1015 1019  
1016 1020  # São Tomé and Príncipe
1017 1021  # Senegal
1018 1022  # See Africa/Abidjan.
1019 1023  
1020 1024  # Seychelles
1021 1025  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1022 1026  Zone    Indian/Mahe     3:41:48 -       LMT     1906 Jun # Victoria
1023      -                        4:00    -       SCT     # Seychelles Time
     1027 +                        4:00    -       +04
1024 1028  # From Paul Eggert (2001-05-30):
1025 1029  # Aldabra, Farquhar, and Desroches, originally dependencies of the
1026 1030  # Seychelles, were transferred to the British Indian Ocean Territory
1027 1031  # in 1965 and returned to Seychelles control in 1976.  We don't know
1028 1032  # whether this affected their time zone, so omit this for now.
1029 1033  # Possibly the islands were uninhabited.
1030 1034  
1031 1035  # Sierra Leone
1032 1036  # See Africa/Abidjan.
1033 1037  
↓ open down ↓ 155 lines elided ↑ open up ↑
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX