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Mountain Standard Time definition

☆ Mountain Standard Time

a standard time used in the zone which includes the Rocky Mountain region of the U.S. corresponding to the mean solar time of the 105th meridian west of Greenwich, England: it is seven hours behind Greenwich time

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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