How to use the MST to EST Converter
- Enter a MST time. Set the date and time in Mountain Time.
- Read the EST time. The Eastern Time equivalent appears instantly, with DST notes.
- Compare more cities. Add cities to the hour grid or click an hour to convert it.
Mountain Time vs Eastern Time time difference in 2026
| Dates (2026) | ET vs MT |
|---|---|
| Jan 1 – Dec 31 | +2 hours |
MST to EST conversion table (October 12, 2026)
| MT (MDT) | ET (EDT) |
|---|---|
| 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 |
| 8:00 AM | 10:00 AM |
| 9:00 AM | 11:00 AM |
| 10:00 AM | 12:00 PM |
| 11:00 AM | 1:00 PM |
| 12:00 PM | 2:00 PM |
| 1:00 PM | 3:00 PM |
| 2:00 PM | 4:00 PM |
| 3:00 PM | 5:00 PM |
| 4:00 PM | 6:00 PM |
| 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 (+1 day) |
| 11:00 PM | 1:00 AM (+1 day) |
Highlighted rows fall within 9 AM–5 PM in both zones. Times for other dates may differ around DST changes; use the converter above.
What your results mean
In this page’s name, MST stands for Mountain Time (America/Denver) and EST for Eastern Time (America/New_York); the labels are used year-round as search terms. The converter uses each zone’s rules for the date you pick, so it shows MDT or EDT automatically when daylight saving time applies.
Tips
- Mountain Time is used in Colorado, Utah, New Mexico, Montana, Wyoming and Alberta (most of Arizona stays on MST all year).
- Eastern Time is used in New York, Florida, Georgia, the Eastern Seaboard, Ontario and Quebec.
- Also see PST to EST, EST to PST, CST to EST, EST to CST.
Frequently asked questions
What is the time difference between MST and EST?
As of October 12, 2026, Eastern Time is 2 hours ahead of MT (MDT) (MDT UTC−6 vs EDT UTC−4). The difference stays the same all year.
What is 9 AM MST in EST?
On October 12, 2026, 9:00 AM MT (MDT) is 11:00 AM ET (EDT). The result can shift by an hour on dates when only one side is on daylight saving time; the converter above uses the rules for the date you pick.
Does MST observe daylight saving time?
Yes. Mountain Time switches between MST (UTC−7) and MDT (UTC−6); in 2026 clocks change on March 8 at 2:00 AM and November 1 at 2:00 AM local time.
Does EST observe daylight saving time?
Yes. Eastern Time switches between EST (UTC−5) and EDT (UTC−4); in 2026 clocks change on March 8 at 2:00 AM and November 1 at 2:00 AM local time.
When do MST and EST business hours overlap?
On October 12, 2026, 9-to-5 hours overlap from 9:00 AM to 3:00 PM MT (MDT) (6 hours).
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