EST to MST: EST is 2 hours ahead of MST
Eastern Time is 2 hours ahead of Mountain Time, on every day of the year. It is 3:36 pm EDT in Eastern and 1:36 pm MDT in Mountain.
Convert a specific time from EST to MST
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between EST and MST?
Mountain Time is 2 hours behind Eastern Time. To go from EST to MST you subtract 2 hours. That gap holds on all 365 days of 2026: both zones move their clocks, but on the same dates and in the same direction, so the distance between them never changes.
EST to MST conversion table
Every hour of Wednesday, September 23, 2026 in Eastern, with the matching reading in Mountain. 2 of the 24 hours land on a different calendar date in Mountain, which is the part people get wrong when they schedule across this pair.
| EST | EST 24h | MST | MST 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 10:00 pm | 22:00 | the previous day |
| 1:00 am | 01:00 | 11:00 pm | 23:00 | the previous day |
| 2:00 am | 02:00 | 12:00 am | 00:00 | same day |
| 3:00 am | 03:00 | 1:00 am | 01:00 | same day |
| 4:00 am | 04:00 | 2:00 am | 02:00 | same day |
| 5:00 am | 05:00 | 3:00 am | 03:00 | same day |
| 6:00 am | 06:00 | 4:00 am | 04:00 | same day |
| 7:00 am | 07:00 | 5:00 am | 05:00 | same day |
| 8:00 am | 08:00 | 6:00 am | 06:00 | same day |
| 9:00 am | 09:00 | 7:00 am | 07:00 | same day |
| 10:00 am | 10:00 | 8:00 am | 08:00 | same day |
| 11:00 am | 11:00 | 9:00 am | 09:00 | same day |
| 12:00 pm | 12:00 | 10:00 am | 10:00 | same day |
| 1:00 pm | 13:00 | 11:00 am | 11:00 | same day |
| 2:00 pm | 14:00 | 12:00 pm | 12:00 | same day |
| 3:00 pm | 15:00 | 1:00 pm | 13:00 | same day |
| 4:00 pm | 16:00 | 2:00 pm | 14:00 | same day |
| 5:00 pm | 17:00 | 3:00 pm | 15:00 | same day |
| 6:00 pm | 18:00 | 4:00 pm | 16:00 | same day |
| 7:00 pm | 19:00 | 5:00 pm | 17:00 | same day |
| 8:00 pm | 20:00 | 6:00 pm | 18:00 | same day |
| 9:00 pm | 21:00 | 7:00 pm | 19:00 | same day |
| 10:00 pm | 22:00 | 8:00 pm | 20:00 | same day |
| 11:00 pm | 23:00 | 9:00 pm | 21:00 | same day |
What are the best hours to schedule a call between EST and MST?
6 hours of the standard 9:00 am to 5:00 pm working day line up in both zones, from 11:00 am EST to 5:00 pm EST. In Mountain that window reads 9:00 am to 3:00 pm. Outside it, one side is either not yet at their desk or already gone.
| EST | MST | Working hours | Note |
|---|---|---|---|
| 11:00 am | 9:00 am | both sides | mid morning in Eastern, mid morning in Mountain |
| 12:00 pm | 10:00 am | both sides | noon in Eastern, mid morning in Mountain |
| 1:00 pm | 11:00 am | both sides | afternoon in Eastern, mid morning in Mountain |
| 2:00 pm | 12:00 pm | both sides | afternoon in Eastern, noon in Mountain |
| 3:00 pm | 1:00 pm | both sides | afternoon in Eastern, afternoon in Mountain |
| 4:00 pm | 2:00 pm | both sides | afternoon in Eastern, afternoon in Mountain |
Does daylight saving change EST to MST?
Eastern Time is currently on EDT and changes next on Sunday, November 1, 2026, when the clock falls back from 1:59 am to 1:00 am and the offset moves from UTC-4 to UTC-5.
Mountain Time is currently on MDT and changes next on Sunday, November 1, 2026, when the clock falls back from 1:59 am to 1:00 am and the offset moves from UTC-6 to UTC-7.
Is EST ahead of or behind MST?
EST is ahead of MST by 2 hours: when it is 12:00 pm in Eastern, it is 10:00 am in Mountain. One wrinkle worth knowing: EST and EDT are two names for the same zone, not two zones. Eastern Time reads EST in winter and EDT in summer. When somebody types "est to mst" they nearly always mean the zone rather than the literal winter offset, so this page resolves EST to America/New_York and MST to America/Denver and applies whichever offset is genuinely in force on the day.
Eastern Time covers New York, Toronto, Atlanta and Miami. Mountain Time covers Denver, Salt Lake City, Albuquerque and Calgary. The identifiers behind them are America/New_York and America/Denver, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is EST in MST?
- EST is 2 hours ahead of MST. 9:00 am EST is 7:00 am MST.
- How many hours ahead is MST of EST?
- MST is 2 hours behind EST.
- What time is it in Mountain right now?
- 1:36 pm MDT on Wednesday, September 23, 2026.
- When can Eastern and Mountain meet during working hours?
- Between 11:00 am and 5:00 pm EST, which is 9:00 am to 3:00 pm MST.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so EDT and MDT are the abbreviations genuinely in force today rather than a fixed assumption.
EST to MST by the hour
Other conversions
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