MT to ET Time Converter
ET is 2 hours ahead of MT. The US Mountain states are currently on MDT (UTC-6:00), and The US East Coast is currently on EDT (UTC-4:00).
Best Time to Call Between MT and ET
Both zones are inside normal business hours between 9:00 AM and 3:00 PM MT — that's 11:00 AM to 5:00 PM ET. That's a 6-hour window.
both at work MT only ET only neither — hours along the strip are MT.
Common Times Converted
MT on the left, ET on the right.
MT to ET: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| MT | ET | Working hours |
|---|---|---|
| 12:00 AM | 2:00 AM | — |
| 1:00 AM | 3:00 AM | — |
| 2:00 AM | 4:00 AM | — |
| 3:00 AM | 5:00 AM | — |
| 4:00 AM | 6:00 AM | — |
| 5:00 AM | 7:00 AM | — |
| 6:00 AM | 8:00 AM | — |
| 7:00 AM | 9:00 AM | ET only |
| 8:00 AM | 10:00 AM | ET only |
| 9:00 AM | 11:00 AM | Both zones |
| 10:00 AM | 12:00 PM | Both zones |
| 11:00 AM | 1:00 PM | Both zones |
| 12:00 PM | 2:00 PM | Both zones |
| 1:00 PM | 3:00 PM | Both zones |
| 2:00 PM | 4:00 PM | Both zones |
| 3:00 PM | 5:00 PM | MT only |
| 4:00 PM | 6:00 PM | MT only |
| 5:00 PM | 7:00 PM | — |
| 6:00 PM | 8:00 PM | — |
| 7:00 PM | 9:00 PM | — |
| 8:00 PM | 10:00 PM | — |
| 9:00 PM | 11:00 PM | — |
| 10:00 PM | 12:00 AM next day | — |
| 11:00 PM | 1:00 AM next day | — |
What MT and ET Actually Are
MT — Mountain Time
Denver, Salt Lake City, Calgary, Edmonton — and Phoenix, which does not change its clocks. Standing at UTC-7:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to MST.
Mountain Time contains the most conspicuous daylight saving exception in North America: Arizona, which has opted out since 1968.
ET — Eastern Time
New York, Toronto, Washington DC, Atlanta, Miami, Boston. Standing at UTC-5:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to EST.
Eastern Time covers roughly half the US population and, because of that, is the zone most American business defaults to when nobody specifies one.
What This Means in Practice
Both sides change clocks, on different dates
Both regions observe daylight saving but do not switch on the same day, so for a week or two each spring and fall the gap between them is an hour different from the rest of the year. Those short windows are where recurring invitations quietly break.
Close enough to share a working day
At only 2 hours apart, the two working days overlap almost completely. Scheduling is barely constrained by the difference.
Major Cities in Each Zone
Cities on MT
Cities on ET
Frequently Asked Questions
What is the time difference between MT and ET?
ET is 2 hours ahead of MT.
What is 9:00 AM MT in ET?
9:00 AM MT is 11:00 AM ET.
What are the best hours to schedule a call between MT and ET?
Between 9:00 AM and 3:00 PM MT, which is 11:00 AM to 5:00 PM ET. Both sides are inside normal business hours through that window.
Does the difference between MT and ET change during the year?
Yes. Both regions observe daylight saving, and they do not switch on the same dates, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.