Time in São Tomé and Príncipe

Time in São Tomé and Príncipe
Time zone	Greenwich Mean Time
Initials	GMT
UTC offset	UTC+00:00
Adopted	1 January 1912–1 January 2018 1 January 2019 (readopted)
Daylight saving time
DST not observed
tz database
Africa/Sao Tome

Time in the island country of São Tomé and Príncipe is given by Greenwich Mean Time (GMT; UTC+00:00).[1] São Tomé and Príncipe has never observed daylight saving time.[2]

History

Under Portuguese rule, São Tomé and Príncipe first observed the local mean time UTC+0:26:56 until 1884, when it adopted UTC-0:36:45. GMT (UTC+00:00) was adopted on 1 January 1912.[3] The country briefly adopted West Africa Time (WAT; UTC+01:00) on 1 January 2018,[4] but reverted back on 1 January the following year.[5]

IANA time zone database

In the IANA time zone database, São Tomé and Príncipe is given one zone in the file zone.tab – Africa/Sao Tome. "ST" refers to the country's ISO 3166-1 alpha-2 country code. Data for São Tomé and Príncipe directly from zone.tab of the IANA time zone database; columns marked with * are the columns from zone.tab itself:[3]

c.c.*	coordinates*	TZ*	Comments	UTC offset	DST
ST	+0020+00644	Africa/Sao_Tome		+00:00	+00:00

References

1. Sao Tome and Principe. "time difference: UTC 0". The World Factbook. Central Intelligence Agency (CIA). Retrieved 29 July 2021.
2. São Tomé and Príncipe Time Zone. TimeTemperature.com. Retrieved 29 July 2021.
3. Africa at the tz database. Internet Assigned Numbers Authority (IANA). Retrieved 29 July 2021.
4. Decree No. 25/2017. mnec.gov.st. Archived from the original on 26 December 2018. Retrieved 29 July 2021.
5. Governo de Jorge B. Jesus já decidiu repor a hora legal são-tomense, 5 December 2018. (in Portuguese). STP-Press. Retrieved 29 July 2021.

External links

• Current time in São Tomé and Príncipe at Time.is
• Time in São Tomé and Príncipe at TimeAndDate.com