mountain time mountain tent • mountain timothy · · · Info · Definitions · Characters · · mountain time · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) standard time in the 7th time zone west of Greenwich, reckoned at the 105th meridian west; used in the mountain states of the United States. Synonyms: Mountain Time, Mountain Standard Time, MST. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074 u latin small letter u U+0075