5 hours 42 minute advance
12
The local time of any place changes by 4 minutes for every degree of longitude that it moves east or west from the Greenwich Meridian.
Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatoryin Greenwich, London.
Greenwich Mean Time (GMT) is the time at the Prime Meridian, which is 0 degrees longitude. Tokyo, located at 140 degrees east, is 9 hours ahead of GMT. Therefore, when it is 12 noon on Monday at Greenwich, it would be 9:00 PM on Monday in Tokyo.
If you tell us the time at either Greenwich or at 74° west, then we can tell you the time at the other point. They do track together, but both of them keep changing.
12
8am
Greenwich is located in the Royal Borough of Greenwich, which is a district of South East London, England. It is well known for its maritime history and for giving its name to the Greenwich Meridian and Greenwich Mean Time.
The local time of any place changes by 4 minutes for every degree of longitude that it moves east or west from the Greenwich Meridian.
The Royal Observatory in Greenwich, London is where the Prime Meridian (0 degrees longitude) is located, making it the reference point for the world's timekeeping. It was founded in 1675 by King Charles II as an astronomical observatory. Greenwich Mean Time (GMT) originated from this site.
Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatoryin Greenwich, London.
At the Royal Observatory in Greenwich, England, which is located on the Prime Meridian.
If you tell us the time at either Greenwich or at 74° west, then we can tell you the time at the other point. They do track together, but both of them keep changing.
G.M.T. is Greenwich Mean Time.Greenwich, England has been the home of Greenwich Mean Time (GMT) since 1884. GMT is sometimes called Greenwich Meridian Time because it is measured from the Greenwich Meridian Line at the Royal Observatory in Greenwich. Greenwich is the place from where all time zones are measured.
G.M.T. is Greenwich Mean Time.Greenwich, England has been the home of Greenwich Mean Time (GMT) since 1884. GMT is sometimes called Greenwich Meridian Time because it is measured from the Greenwich Meridian Line at the Royal Observatory in Greenwich. Greenwich is the place from where all time zones are measured.
The world clock is located in Greenwich, England. All of the other times in the world are based off the time it is in Greenwich. For example, the USA's Eastern Standard Time is referred to on a global scale as (GMT - 05:00), meaning that the time in New York City, for example, is five hours behind that of Greenwich.
The longitude of the Greenwich Royal Observatory is always 0 degrees.