EST to MST converter
Eastern Time (EST) is typically 2 hours ahead of Mountain Time (MST).
Eastern Time → Mountain Time, hour by hour below.
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Eastern Time (EST) is UTC−5 and observes daylight saving (EDT, UTC−4, roughly March–November). It covers New York, Toronto, Miami and Atlanta.
Mountain Time (MST) is UTC−7 and observes daylight saving (MDT, UTC−6, roughly March–November). It covers Denver, Salt Lake City and Calgary.
Mountain Time is typically 2 hours behind Eastern Time, though daylight saving can shift the difference by an hour at some times of year.
Time difference between Eastern Time and Mountain Time
Mountain Time is typically 2 hours behind Eastern Time, though daylight saving can shift the difference by an hour at some times of year. Put the other way around: mountain Time (MST) is typically 2 hours behind Eastern Time (EST). The table above shows the difference hour by hour using today's actual offsets.
Best time to call Mountain Time from Eastern Time
Office hours overlap for about 6 hours a day: 11:00 AM–5:00 PM in Eastern Time is 9:00 AM–3:00 PM in Mountain Time. Book calls inside this window and nobody is out of hours. Daylight saving can shift these times by an hour at some points in the year.
EST to MST, hour by hour
Today's actual offsets. Rows where both zones are inside 9am–5pm working hours are highlighted.