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Greenwich Mean Timecommonly known as GMTis a time standard that originated from the Royal Observatory in GreenwichLondon. GMT serves as the baseline for global timekeeping and is used to coordinate time zones worldwide.
GMT abbreviated for Greenwich Mean Time that is the local clock time at Greenwich. Greenwich Mean Time (GMT) is also the mean solar time at the Royal Observatory in GreenwichLondon. Since the year 1884 till 1972GMT was the international standard of the civil time. Afterwards it was replaced by Coordinated Universal Time (UTC); Greenwich Mean Time (GMT) is now also the legal time in Britain in the winter that is used by the Met OfficeRoyal Navy as well as BBC World Service.
Greenwich Mean Time (GMT) is a time system that signifies the mean solar time at the Prime Meridian that runs through the Royal Observatory in GreenwichLondon. GMT served as the international standard for civil timekeeping and also played an essential role in navigation as well as global communication. GMT is calculated on this basis of the Earth's rotation and also its relation to the Sun. It offers a standardized time suggestion that is not effected by time zones and daylight- saving time adjustments.
Although "Greenwich Mean Time" (GMT) and "Coordinated Universal Time" (UTC) often emerge as interchangeable in casual usethere are technical distinctions.
GMT is basically based on the Earth's rotation and its position around the Sun making it a type of solar time.
UTC is based on the International Atomic Time (TAI) with the leap seconds added to keep it within 0.9 seconds of Universal Time (UT1) that is a modern continuation of GMT and adjusted for the Earth's irregular rotation.