GMT, or Greenwich Mean Time, is an alias for the UTC+00:00 time zone.
GMT or gmt may also refer to:
Science and technology Generic Mapping Tools in graphical computing Geometric measure theory Giant Magellan Telescope, a telescope under construction in Chile 11 General Motors GMT platform, an automobile platform Great Melbourne Telescope, built in Dublin, Ireland Generalized Milankovitch Theory re: Quaternary glaciation
Transport GATX, an American rolling stock leaser Granite Mountain Air Station, an airport in Alaska Greater Manchester Transport, in England Green Mountain Transit, a transportation company in Vermont Grosmont railway station, in England
Other uses GMT (TV programme), United Kingdom Glycine/sarcosine N-methyltransferase, an enzyme G:MT – Greenwich Mean Time, a 1999 British film GMT Games, United States GMT Records, a Japanese record label Goodman–Martinez–Thompson correlation, between the Mayan and Julian calendars Guy McCoy Tormé, a British rock-band Metal-Textile Union, a former Austrian trade union Gregoria Mariska Tunjung, an Indonesian female badminton player