4 days ago · Greenwich Mean Time (GMT), time zone and precursor to UTC as world time standard. GMT history and role in setting world time zones. View clocks showing GMT.

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, …

Oct 19, 2025 · Greenwich Mean Time (GMT), the name for mean solar time of the longitude (0°) of the Royal Greenwich Observatory in England. The meridian at this longitude is called the prime meridian …

What does GMT stand for? GMT stands for Greenwich Mean Time, the local clock time at Greenwich. From 1884 until 1972, GMT was the international standard of civil time. Though it has now been …

Greenwich Mean Time (GMT) has no offset from Coordinated Universal Time (UTC). This time zone is in use during standard time in: Europe, Africa, North America, Antarctica.

Jul 15, 2025 · Introduction: Understanding Greenwich Mean Time Greenwich Mean Time (GMT) represents the mean solar time at the Royal Observatory in Greenwich, London. As the world’s first …

1 day ago · For Greenwich Mean Time, the time zone UTC +0 applies. The Greenwich Mean Time corresponds to the UTC 0 time zone, i.e., the Coordinated World Time with an offset of 0 hours. It …

Greenwich Mean Time (GMT), one of the oldest time standards, originated in the late 19th century based on mean solar time at the Prime Meridian in Greenwich, London. It became the foundation for …

The meaning of GREENWICH MEAN TIME is the mean time that is associated with the prime meridian of Greenwich, England, and historically used as the prime basis of standard time throughout the …

What Is Greenwich Mean Time? Greenwich Mean Time, abbreviated GMT, is a time zone that covers parts of Europe, Africa and Antarctica. At the center of GMT is the Royal Observatory in Greenwich, …