greenwhich mean time
Mean solar time on the prime meridian is known as Greenwich Mean Time (GMT).
Longitude
greenwhich mean time
Greenwich Mean Time or Greenwich Meridian Time (GMT) is the prime meridian located at the former Royal Observatory in Greenwich, England. The start of a solar day originally occurred at noon. But in 1925 the numbering system for GMT was changed, and 0000 GMT now allows the day to begin at midnight.
The prime meridian itself does not directly help tell time. Rather, time zones are determined based on their distance east or west from the prime meridian, with Greenwich Mean Time (GMT) being the time at the prime meridian. This system helps standardize timekeeping across the world.
Universal Time used to be called Greenwich Mean Time (GMT). It is the mean solar time measured at the prime meridian, 0° longitude, which passes through the original location of the Royal Greenwich Observatory in Greenwich, England.
As your are positioned at 105E of Prime Meridian, you are on a easterly track from prime meridian (ie. GMT time) therefore LMT (Local Mean Time ) at 105E can be calculated as105E\15= 0700hrs ( results as per scientific calculator )Therefore LMT at 105E would be GMT at 105E + 0700ie 0600+0700=1300hrs.Ans Local Mean Time at 105E = 1300hrs
We begin to measure time at the prime meridian
The London suburb of Greenwich, hence GMT (Greenwich Mean Time).
At the Royal Observatory in Greenwich, England, which is located on the Prime Meridian.
The prime meridian is a line of longitude
No meridians are called the time meridian. The Greenwich meridian which passes through Greenwich, London is called the prime meridian. From which time zones are calculated.