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,...

British Summer Time (BST), civil time in the United Kingdom is advanced one hour forward of Greenwich Mean Time (GMT), in effect changing the time zone from...

even though most of its pages used Greenwich Civil Time, the American name for the midnight epoch Greenwich Mean Time. For astronomical purposes, before...

widely embraced by most countries and is the effective successor to Greenwich Mean Time (GMT) in everyday usage and common applications. In specialized domains...

uses Greenwich Mean Time (also known as Western European Time or UTC) and British Summer Time (UTC+01:00) (also known as Western European Summer Time). The...

that the same time is used throughout some regional time zone—usually, it is at an offset from Greenwich Mean Time or the local mean time of the capital...

Standard Time (IST, UTC+01:00; Irish: Am Caighdeánach Éireannach) in the summer months and Greenwich Mean Time (UTC+00:00; Irish: Meán-Am Greenwich) in the...

Greenwich Time may refer to: Greenwich Mean Time, the mean solar time at the Royal Observatory in Greenwich, London. Greenwich Time Signal, a time calibration...

offset from Greenwich Mean Time. Nigeria's local mean time was UTC+00:13:35. Greenwich Mean Time (GMT; UTC+00:00) was adopted as the standard time of capital...

setting Belville's watch to Greenwich Mean Time, as shown by the Greenwich clock, each day and then "selling" people the time by letting them look at the...

the west. The Royal Observatory, Greenwich, founded in 1675, established Greenwich Mean Time (GMT), the mean solar time at that location, as an aid to mariners...

true: local mean sidereal time = GMST + east longitude local apparent sidereal time = GAST + east longitude The new definitions of Greenwich mean and apparent...

Starting in 1847, Britain established Greenwich Mean Time, the mean solar time on the Prime Meridian at Greenwich, England, to solve this problem: all...

passed through it, it gave its name to Greenwich Mean Time, the precursor to today's Coordinated Universal Time (UTC). The ROG has the IAU observatory...

this they were based upon the mean solar time at several meridians 15° apart west of Greenwich (GMT). Only the full-time zone names listed below are official;...

UTC+0:32. An 1893 law set the de jure standard time of Denmark as the mean solar time 15°E of Greenwich, for all of Denmark, with an exception for the...

Cross. Greenwich is notable for its maritime history and for giving its name to the Greenwich Meridian (0° longitude) and Greenwich Mean Time. The town...

switched from local mean time, which varied from place to place, to Greenwich Mean Time (GMT). It was also given the name railway time, reflecting the important...

GMT or Greenwich Mean Time is the mean solar time at the Royal Observatory in Greenwich, London. GMT may also refer to: Generic Mapping Tools in graphical...

associated time would be written as 2069-01-01T12:12:34+00:00. It is also known by the following geographical or historical names: Greenwich Mean Time Western...

a royal decree to standardise the time in Spain; thus setting Greenwich Mean Time (UTC±00:00) as the standard time in peninsular Spain, the Balearic Islands...

Universal Time is based. The prime meridian running through Greenwich, and the Greenwich Observatory is where the designation Greenwich Mean Time, or GMT...

G:MT – Greenwich Mean Time is a 1999 British drama film. Starring Steve John Shepherd and Chiwetel Ejiofor, the film features music by acid jazz and jungle...

this zone, though legally they calculate time specifically as an offset of four hours from Greenwich Mean Time (GMT–4) rather than from UTC. Small portions...

organised and the time station clocks displayed were brought in line with the local mean time for London or "London Time", the time set at Greenwich by the Royal...

 164. ISBN 978-0-8223-4640-1. "Greenwich Time Ball". Royal Museums Greenwich. "Time ball". Greenwich2000. Greenwich Mean Time. 2019. Retrieved 12 December...

midnight. HM Nautical Almanac Office in the United Kingdom used Greenwich Mean Time (GMT) for both conventions, leading to ambiguity[clarification needed]...

equivalent of CET Greenwich Mean Time (GMT) :: UTC : Archived 2013-05-08 at the Wayback Machine MHonArc Resources: TIMEZONES AIX time zone table Archived...

daylight saving time. The clock time in this zone is based on the mean solar time of the meridian 52 degrees and 30 arcminutes west of the Greenwich Observatory...

new standard time. The mean time of the 105th meridian is 7 hours ahead of Greenwich Mean Time (i.e., local mean time at the Greenwich Royal Observatory)...