Gmt Long Form - Web gmt stands for greenwich mean time, the local clock time at greenwich. (standard time) currently observing gmt. Web greenwich mean time or gmt is the mean (average) solar time at the greenwich meridian or prime meridian, 0. From 1884 until 1972, gmt was the international.
(standard time) currently observing gmt. Web gmt stands for greenwich mean time, the local clock time at greenwich. From 1884 until 1972, gmt was the international. Web greenwich mean time or gmt is the mean (average) solar time at the greenwich meridian or prime meridian, 0.