GMT stands for Greenwich Mean Time, the local mean time at the Royal Observatory in Greenwich, London. It is also used as a name for the time zone UTC+00:00 and the basis for civil time in the UK. 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 or Greenwich meridian. The GMT Full Form is Greenwich Mean Time . Greenwich Mean Time is a time zone that covers the Earth's Greenwich meridian line. You can learn all about it here. Learn the GMT full form ( Greenwich Mean Time ), its meaning, uses, and difference from UTC. Key for exams, geography, travel, and GK.
