Convert MST to EST

EST = MST +2 h

EST is 2 hours ahead of MST. MST is always UTC−7 and EST is always UTC−5, so this gap is the same on every date.

9:00 AM MST = 11:00 AM EST

MST · Mountain Standard Time · UTC−7

5:14AM

Tuesday, November 3, 2026

EST · Eastern Standard Time · UTC−5

7:14AM

Tuesday, November 3, 2026

Denver is on MST (UTC−7) right now.

New York is on EST (UTC−5) right now.

MST to EST for every hour

Every hour of the MST day with the matching EST time, valid on any date. From 10:00 PM MST, EST is already on the next calendar day.

MST EST +2 h 24-hour
12:00 AM 2:00 AM 00:00 → 02:00
1:00 AM 3:00 AM 01:00 → 03:00
2:00 AM 4:00 AM 02:00 → 04:00
3:00 AM 5:00 AM 03:00 → 05:00
4:00 AM 6:00 AM 04:00 → 06:00
5:00 AM 7:00 AM 05:00 → 07:00
6:00 AM 8:00 AM 06:00 → 08:00
7:00 AM 9:00 AM 07:00 → 09:00
8:00 AM 10:00 AM 08:00 → 10:00
9:00 AM 11:00 AM 09:00 → 11:00
10:00 AM 12:00 PM 10:00 → 12:00
11:00 AM 1:00 PM 11:00 → 13:00
12:00 PM 2:00 PM 12:00 → 14:00
1:00 PM 3:00 PM 13:00 → 15:00
2:00 PM 4:00 PM 14:00 → 16:00
3:00 PM 5:00 PM 15:00 → 17:00
4:00 PM 6:00 PM 16:00 → 18:00
5:00 PM 7:00 PM 17:00 → 19:00
6:00 PM 8:00 PM 18:00 → 20:00
7:00 PM 9:00 PM 19:00 → 21:00
8:00 PM 10:00 PM 20:00 → 22:00
9:00 PM 11:00 PM 21:00 → 23:00
10:00 PM 12:00 AM +1 day 22:00 → 00:00
11:00 PM 1:00 AM +1 day 23:00 → 01:00

Bold rows fall inside office hours (9:00 to 17:00) on both sides. The dot marks the current MST hour.

Does the difference change during the year?

No. Denver and New York both change their clocks, on the same dates and in the same direction, so the gap of 2 hours holds all year.

On the change nights themselves the two sides do not switch at the same instant. Each changes at its own local time, so for 2 hours in the early hours the gap between the local clocks is different: 3 h on Mar 14 and 1 h on Nov 7, 2027. That matters only for events scheduled in the middle of the night.

Converting MST to EST by hand

Add 2 hours: 3:30 PM MST is 5:30 PM EST.

Going back from EST to MST, do the opposite: the EST to MST page has its own table.

Where the MST and EST working days overlap

Two 9:00–17:00 days share 6 hours: 9:00 AM to 3:00 PM MST, which is 11:00 AM to 5:00 PM EST.

What MST and EST mean

Mountain Standard Time

MST is UTC−7: winter time in Denver and Salt Lake City, and all-year time in most of Arizona (Phoenix), Sonora and Yukon. British Columbia also stays on UTC−7 all year since 2026, so Vancouver now keeps MST through the winter.

Eastern Standard Time

EST is UTC−5. The US East Coast and eastern Canada (New York, Washington, Miami, Toronto, Montreal) use it only in winter; from the second Sunday of March to the first Sunday of November they are on EDT, UTC−4. Jamaica, Panama and Cancún keep it all year, and since 2026 so does Manitoba (Winnipeg).

Questions

How many hours ahead of MST is EST?
EST is 2 hours ahead of MST. MST is always UTC−7 and EST is always UTC−5, so this gap is the same on every date.
When is EST on a different date from MST?
From 10:00 PM MST to midnight, EST is already on the next calendar day. So a time late in the MST day needs the next date on the EST side, and the reverse holds when you convert back.

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