/ Thesaurus / E Synonyms of eastern time Find synonyms for: Noun1. Eastern Time, Eastern Standard Time, EST, civil time, standard time, local timeusage: standard time in the 5th time zone west of Greenwich, reckoned at the 75th meridian; used in the eastern United StatesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language