civil time ci·vil·time uncommon noun 1. the official time in a local region (adjusted for location around the Earth); established by law or custom Synonymscivil timestandard timelocal time Related words Broader terms time Narrower terms Atlantic TimeEastern TimeCentral TimeMountain TimePacific TimeAlaska Standard TimeHawaii TimeBering Time WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.