make/data/tzdata/africa

*** 179,189 ****
  Link Africa/Abidjan Africa/Dakar        # Senegal
  Link Africa/Abidjan Africa/Freetown     # Sierra Leone
  Link Africa/Abidjan Africa/Lome         # Togo
  Link Africa/Abidjan Africa/Nouakchott   # Mauritania
  Link Africa/Abidjan Africa/Ouagadougou  # Burkina Faso
- Link Africa/Abidjan Africa/Sao_Tome     # São Tomé and Príncipe
  Link Africa/Abidjan Atlantic/St_Helena  # St Helena
  
  # Djibouti
  # See Africa/Nairobi.
  
--- 179,188 ----
*** 446,456 ****
  #
  # From Paul Eggert (2017-03-02):
  #
  # The Nautical Almanac for the Year 1970, p 264, is the source for -0:44:30.
  #
! # In 1972 Liberia was the last country to switch from a UTC offset
  # that was not a multiple of 15 or 20 minutes.  The 1972 change was on
  # 1972-01-07, according to an entry dated 1972-01-04 on p 330 of:
  # Presidential Papers: First year of the administration of
  # President William R. Tolbert, Jr., July 23, 1971-July 31, 1972.
  # Monrovia: Executive Mansion.
--- 445,455 ----
  #
  # From Paul Eggert (2017-03-02):
  #
  # The Nautical Almanac for the Year 1970, p 264, is the source for -0:44:30.
  #
! # In 1972 Liberia was the last country to switch from a UT offset
  # that was not a multiple of 15 or 20 minutes.  The 1972 change was on
  # 1972-01-07, according to an entry dated 1972-01-04 on p 330 of:
  # Presidential Papers: First year of the administration of
  # President William R. Tolbert, Jr., July 23, 1971-July 31, 1972.
  # Monrovia: Executive Mansion.
*** 1058,1067 ****
--- 1057,1079 ----
  #       Gough (scientific station since 1955; sealers wintered previously):
  #               on GMT, says the CIA
  #       Inaccessible, Nightingale: uninhabited
  
  # São Tomé and Príncipe
+ 
+ # From Steffen Thorsen (2018-01-08):
+ # Multiple sources tell that São Tomé changed from UTC to UTC+1 as
+ # they entered the year 2018.
+ # From Michael Deckers (2018-01-08):
+ # the switch is from 01:00 to 02:00 ... [Decree No. 25/2017]
+ # http://www.mnec.gov.st/index.php/publicacoes/documentos/file/90-decreto-lei-n-25-2017
+ 
+ Zone    Africa/Sao_Tome  0:26:56 -      LMT     1884
+                         -0:36:45 -      LMT     1912 # Lisbon Mean Time
+                          0:00   -       GMT     2018 Jan  1 01:00
+                          1:00   -       WAT
+ 
  # Senegal
  # See Africa/Abidjan.
  
  # Seychelles
  # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]