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MST

¹ American

Or m.s.t.

Mountain Standard Time.

M.S.T. ² American

abbreviation

Master of Science in Teaching.
Mountain Standard Time.

MST British

abbreviation

Mountain Standard Time

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

MST Financial analyst David Gibson told MarketWatch that the reopening of the Strait of Hormuz, when it happens, will ease supply-chain risks for the industry.

From MarketWatch • Apr. 8, 2026

The event will take place in room West 105 of the Phoenix Convention Center from 10:00 AM - 11:00 AM MST Saturday, February 14th, 2026.

From Science Daily • Feb. 14, 2026

The operations center is open Christmas Eve until midnight MST.

From Washington Times • Dec. 24, 2023

MST Financial analyst David Gibson said the credit support was significant, but it was not clear how much of it had been withdrawn.

From Reuters • Nov. 7, 2023

MST is easy homework—every day we discuss a different newspaper article.

From "Please Ignore Vera Dietz" by A.S. King

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023