GMT to MST
Convert Greenwich Mean Time (GMT) to Mountain Standard Time (MST), live. MST is normally 7 hours behind GMT. Pick any time below, or open the full world clock map.
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GMT vs MST
GMT (Greenwich Mean Time) runs at UTC+0 and MST (Mountain Standard Time) at UTC−7. MST is normally 7 hours behind GMT.
GMT stays at UTC+0 all year round — it does not observe daylight saving time. MST is the standard time (UTC−7); when daylight saving is in effect it becomes MDT (UTC−6). The live clock on this page always shows the current offset.
Looking for the reverse conversion? See MST to GMT. You can also browse every offset on the interactive time zone map or line up several zones at once with the meeting planner.