Dictionary.com

Eastern Standard Time

Save This Word!

noun

one of the standard times used in North America, five hours behind Greenwich Mean Time
one of the standard times used in Australia

QUIZZES

QUIZ YOURSELF ON “ITS” VS. “IT’S”!

Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.
Abbreviation: EST
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for Eastern Standard Time

Eastern Standard Time

Standard time in the fifth time zone west of Greenwich, England, reckoned at 75° west and used, for example, in the eastern part of North America.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Hate Typos? Get Grammar Coach