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For zones in which Daylight Saving is not observed, the DST offset shown in this table is a simple duplication of the SDT offset. The UTC offsets are based on the current or upcoming database rules. This table does not attempt to document any of the historical data which resides in the database.
UTC+00:00 (GMT in winter/BST in summer) – Main territory of the United Kingdom, Saint Helena, Ascension and Tristan da Cunha, Guernsey, Isle of Man, Jersey UTC+01:00 – Gibraltar UTC+02:00 – Akrotiri and Dhekelia UTC+06:00 – British Indian Ocean Territory: Time in the United Kingdom: Canada: 6
ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data.It is maintained by the International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. [1]
Time zones of the world. A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.
In 1928, the term Universal Time (UT) was introduced by the International Astronomical Union to refer to GMT, with the day starting at midnight. [8] The term was recommended as a more precise term than Greenwich Mean Time, because GMT could refer to either an astronomical day starting at noon or a civil day starting at midnight. [9]
Portugal used CET in the years 1966–1976 and 1992–1996. United Kingdom. The time around the world is based on Universal Coordinated Time (UTC) which is roughly synonymous with Greenwich Mean Time (GMT). From late March to late October, clocks in the United Kingdom are put forward by one hour for British Summer Time (BST). Since 1997, most ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 22 January 2025. Primary time standard "UTC" redirects here. For the time zone between UTC−1 and UTC+1, see UTC+00:00. For other uses, see UTC (disambiguation). It has been suggested that UTC offset be merged into this article. (Discuss) Proposed since December 2024. Current time zones Coordinated ...
Before 1891, each town and city in Metropolitan France had its own time based on local solar time.In 1891, to avoid complications with railway timetables, time was unified in Metropolitan France and based on the solar time at the Paris Observatory — the Paris meridian being approximately 2°20′ east of the Greenwich meridian, Paris mean solar time was 9 minutes 21 seconds ahead of ...