MST to EDT Converter

EDT is 3h 0m ahead of MST. When it's 12:00 PM MST, it's 3:00 PM EDT.

From

MST · UTC-7

9:09:45PM

Mountain Standard Time

e.g. Denver, Phoenix

To

EDT · UTC-4

12:09:45AM

Eastern Daylight Time

e.g. New York, Toronto

Open in World ClockEDT → MST
9:00 AM MST=12:00 PM EDT
12:00 PM MST=3:00 PM EDT
5:00 PM MST=8:00 PM EDT

Hourly conversion (MST → EDT)

MSTEDT
12:00 AM3:00 AM
1:00 AM4:00 AM
2:00 AM5:00 AM
3:00 AM6:00 AM
4:00 AM7:00 AM
5:00 AM8:00 AM
6:00 AM9:00 AM
7:00 AM10:00 AM
8:00 AM11:00 AM
9:00 AM12:00 PM
10:00 AM1:00 PM
11:00 AM2:00 PM
12:00 PM3:00 PM
1:00 PM4:00 PM
2:00 PM5:00 PM
3:00 PM6:00 PM
4:00 PM7:00 PM
5:00 PM8:00 PM
6:00 PM9:00 PM
7:00 PM10:00 PM
8:00 PM11:00 PM
9:00 PM12:00 AM(+1 day)
10:00 PM1:00 AM(+1 day)
11:00 PM2:00 AM(+1 day)

Shaded rows are within standard working hours (8am–6pm) on both sides.

MST (UTC−7) is the standard-time offset; most of the US Mountain region uses MDT (UTC−6) in summer.

EDT (UTC−4) is the daylight-saving offset used spring to fall; in winter the US East Coast uses EST (UTC−5).

More MST conversions

Frequently asked questions

What is the time difference between MST and EDT?
EDT is 3h 0m ahead of MST. MST is UTC-7 and EDT is UTC-4.
What is 12:00 PM MST in EDT?
12:00 PM MST is 3:00 PM EDT.
Does MST change for daylight saving time?
MST (UTC−7) is the standard-time offset; most of the US Mountain region uses MDT (UTC−6) in summer.