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MST to EST converter

Eastern Time (EST) is 2 hours ahead of Mountain Time (MST) for most of the year, and 1 hour or 3 hours for the rest because of daylight saving time.

Mountain Time · MDT

3:01 AM

Sunday 25 October

Eastern Time · EDT

5:01 AM

Sunday 25 October

Right now, Eastern Time is 2 hours ahead of Mountain Time. Updates live from your device’s clock.

Hour by hour

Today’s conversion. Green dots mark 9-to-5 working hours.

MST to EST time conversion table for today
MSTEST
12:00 AM2:00 AM
1:00 AM3:00 AM
2:00 AM4:00 AM
3:00 AM5:00 AM
4:00 AM6:00 AM
5:00 AM7:00 AM
6:00 AM8:00 AM
7:00 AM9:00 AM
8:00 AM10:00 AM
9:00 AM11:00 AM
10:00 AM12:00 PM
11:00 AM1:00 PM
12:00 PM2:00 PM
1:00 PM3:00 PM
2:00 PM4:00 PM
3:00 PM5:00 PM
4:00 PM6:00 PM
5:00 PM7:00 PM
6:00 PM8:00 PM
7:00 PM9:00 PM
8:00 PM10:00 PM
9:00 PM11:00 PM
10:00 PM12:00 AMnext day
11:00 PM1:00 AMnext day

Best time to meet

When both sides are inside 9 AM–5 PM on a weekday. If there’s no overlap, we show when both are awake (8 AM–9 PM).

  • 9:00 AM–3:00 PMin MST=11:00 AM–5:00 PMin EST

When the gap changes

  • 25 October 2026 → 1 November 2026EST +2h
  • 1 November 2026 → 1 November 2026EST +1h
  • 1 November 2026 → 14 March 2027EST +2h
  • 14 March 2027 → 14 March 2027EST +3h
  • 14 March 2027 → 7 November 2027EST +2h

Mountain Time is MST (UTC−7) in winter and MDT (UTC−6) in summer. Most of Arizona stays on MST all year.

Eastern Time is EST (UTC−5) in winter and EDT (UTC−4) from March to November. It covers New York, Washington, Boston, Atlanta, Miami and Toronto.

Questions

What is the time difference between Mountain Time and Eastern Time?

Eastern Time is 2 hours ahead of Mountain Time for most of the year. Because of daylight saving time, the gap is 1 hour or 3 hours for part of the year.

If it's 9 AM in Mountain Time, what time is it in Eastern Time?

When it's 9:00 AM in Mountain Time, it's 11:00 AM in Eastern Time. At 5:00 PM in Mountain Time, it's 7:00 PM in Eastern Time. (Based on today's offsets.)

What is the best time for a call between Mountain Time and Eastern Time?

Working hours overlap from 9:00 AM to 3:00 PM in Mountain Time, which is 11:00 AM to 5:00 PM in Eastern Time.

Does Mountain Time use daylight saving time?

Yes. Mountain Time's next clock changes are on Sunday, 1 November 2026 (back one hour) and Sunday, 14 March 2027 (forward one hour).

Does Eastern Time use daylight saving time?

Yes. Eastern Time's next clock changes are on Sunday, 1 November 2026 (back one hour) and Sunday, 14 March 2027 (forward one hour).