GMT (Greenwich Mean Time)

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Categories: Broadcasting, Standards

Greenwich Mean Time (GMT) is a time zone, used in some European and African countries. It ceased to be a time-standard in 1972 when the time at every timezone in the world was standardized from Universal Coordinated Time (UTC). GMT is UTC +0.

GMT does not shift in time between summer and winter, though some countries that use GMT switch to different time zones during their Daylight Saving Time period, for instance the UK switches to BST during the summer months.

See also: PTP, UTC, TIA, IEEE 1588, SMPTE Epoch