Coordinated Universal Time
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Coordinated Universal Time, abbreviated as UTC, is the primary time standard by which the world regulates clocks and time. It is one of several closely related successors to Greenwich Mean Time (GMT). For most purposes, UTC is used interchangeably with GMT, but GMT is no longer precisely defined by the scientific community; also, some assert GMT can refer to British Summer Time (BST), which is one hour ahead of UTC.
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See also
- Ephemeris time
- IERS Reference Meridian
- ISO 8601
- Mars Time Coordinated (MTC)
- Terrestrial Time
- World Radiocommunication Conference
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Coordinated Universal Time" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on original research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
