universal time uni·ver·sal·time uncommon noun 1. the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere SynonymsGreenwich Mean TimeGreenwich TimeGMTuniversal timeUTUT1 Related words Broader terms time Narrower terms coordinated universal time WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
