English

Definition of Mountain Standard Time noun from the Oxford Advanced Learner's Dictionary

 

Mountain Standard Time

 noun
noun
BrE BrE//ˌmaʊntən ˈstændəd taɪm//
 
; NAmE NAmE//ˌmaʊntn ˈstændərd taɪm//
 
[uncountable] (abbreviation MST)
 
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the time used in winter in parts of the US and Canada near the Rocky Mountains that is seven hours earlier than UTC