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U.K. Edition
Thursday, 13 February 2025

Greenwich Mean Time

Time zone of Western Europe, same as WET


Greenwich Mean Time
Greenwich Mean Time

Greenwich Mean Time (GMT) is the local mean time at the Royal Observatory in Greenwich, London, counted from midnight. At different times in the past, it has been calculated in different ways, including being calculated from noon; as a consequence, it cannot be used to specify a particular time unless a context is given. The term "GMT" is also used as one of the names for the time zone UTC+00:00 and, in UK law, is the basis for civil time in the United Kingdom.

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