GMT

from 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}]

from The Free On-line Dictionary of Computing (8 July 2008)

GMT

   {Universal Time 1}

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

GMT
       Greenwich Mean Time [+0000] (TZ, UTC, UK)

grant@antiflux.org