How to convert Mountain Time to Eastern Time
- Type the Mountain time and pick the date you need.
- From is set to Mountain Time (Denver). For Phoenix and most of Arizona, choose Arizona (Phoenix, no DST) instead.
- Read the Eastern time and the difference shown below it.
Mountain to Eastern time table
Every 3 hours on July 15, 2026 (MDT to EDT). In winter, MST to EST gives the same results, since the gap stays at 2 hours.
| Denver | New York |
|---|---|
| 12:00 am | 2:00 am |
| 3:00 am | 5:00 am |
| 6:00 am | 8:00 am |
| 9:00 am | 11:00 am |
| 12:00 pm | 2:00 pm |
| 3:00 pm | 5:00 pm |
| 6:00 pm | 8:00 pm |
| 9:00 pm | 11:00 pm |
MST doesn’t always mean Denver
People write MST for two different clocks. In Colorado, Utah, New Mexico and Montana it means Mountain Time, which follows daylight saving. In Arizona it means MST all year. The two match from November to March, then split for the rest of the year:
| Date | Denver | Phoenix | New York |
|---|---|---|---|
| January 15, 2026 | 9:00 am | 9:00 am | 11:00 am |
| July 15, 2026 | 9:00 am | 8:00 am | 11:00 am |
If someone in Arizona sends you a time, convert it from Phoenix rather than Denver.