WordNet (r) 3.0 (2006):
GMT n 1: the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere [syn: Greenwich Mean Time, Greenwich Time, GMT, universal time, UT, UT1]V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
GMT Greenwich Mean Time [+0000] (TZ, UTC, UK)The Free On-line Dictionary of Computing (30 December 2018):
GMT Universal Time 1