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The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [1] This is a list of time zones from release 2024b of the tz database. [2]
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.
From east to west, the four time zones of the contiguous United States are: Eastern Time Zone (Zone R), which comprises roughly the states on the Atlantic coast and the eastern two thirds of the Ohio Valley. Central Time Zone (Zone S), which comprises roughly the Gulf Coast, Mississippi Valley, and most of the Great Plains.
This is a list representing time zones by country. Countries are ranked by total number of time zones on their territory. Time zones of a country include that of dependent territories (except Antarctic claims). France, including its overseas territories, has the most time zones with 12 (13 including its claim in Antarctica and all other counties).
If present, a dagger (†) indicates the usage of a nautical time zone letter outside of the standard geographic definition of that time zone. Some zones that are north/south of each other in the mid-Pacific differ by 24 hours in time – they have the same time of day but dates that are one day apart. The two extreme time zones on Earth (both ...
The zone uses daylight saving time, so that it uses UTC+03:00 during the summer. A number of African countries use UTC+02:00 all year long, where it is called Central Africa Time (CAT), [1] although Egypt and Libya also use the term Eastern European Time. [2] The most populous city in the Eastern European Time zone is Cairo, with the most ...
The following time zone changes occurred on 28 March 2010, which, in particular, led to abolition of two of the eleven time zones. The Udmurt Republic and Samara Oblast started using Moscow Time, thus eliminating Samara Time (MSK+1 or UTC+04:00 without DST). [17] [18] Kemerovo Oblast started using Omsk Time. [19]
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 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 ...