1. Greenwich Mean Time - Noun
2. Greenwich Mean Time - Proper noun
the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere
Source: WordNetAldermen cited the increasing popularity of European soccer — which brings fans out at odd hours to watch matches on Greenwich Mean Time — in their decision to let businesses start serving booze earlier. Source: Internet
A spring-driven chronometer is set approximately to Greenwich mean time (GMT) and is not reset until the instrument is overhauled and cleaned, usually at three-year intervals. Source: Internet
Definition Until 1972 all time zones were specified as an offset from Greenwich Mean Time (GMT), which was the mean solar time at the meridian passing through the Royal Observatory in Greenwich, London. Source: Internet
Greenwich Mean Time (GMT) was established in 1675 when the Royal Observatory was built as an aid to mariners to determine longitude at sea, providing a standard reference time when each city in England kept a different local time. Source: Internet
British Summer Time (BST) is still one hour in advance of Greenwich Mean Time and is therefore approximately equal to UTC+1. Source: Internet
During the experiment of 1968-1971, when the British Isles did not revert to Greenwich Mean Time during the winter, the all-year British Summer Time was called British Standard Time (BST). Source: Internet