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ET to MT time converter
US Mountain is 2 hours behind US Eastern all year.
ET to MT conversion table
Local time in US Eastern and the matching time in US Mountain on two reference dates, one in winter and one in summer for the northern hemisphere.
| US Eastern (ET) | US Mountain on 15 January | US Mountain on 15 July |
|---|---|---|
| 08:00 | 06:00 | 06:00 |
| 09:00 | 07:00 | 07:00 |
| 10:00 | 08:00 | 08:00 |
| 12:00 | 10:00 | 10:00 |
| 15:00 | 13:00 | 13:00 |
| 17:00 | 15:00 | 15:00 |
| 18:00 | 16:00 | 16:00 |
| 21:00 | 19:00 | 19:00 |
Best meeting times between US Eastern and US Mountain
- January: Inside both working days (09:00-17:00): 11:00-17:00 ET = 09:00-15:00 MT.
- July: Inside both working days (09:00-17:00): 11:00-17:00 ET = 09:00-15:00 MT.
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between ET and MT
- US Eastern moves its clocks forward on 8 March and back on 1 November in 2026.
- US Mountain moves its clocks forward on 8 March and back on 1 November in 2026.
About the two zones
US Eastern. US Eastern Time is UTC-5 in winter (EST) and UTC-4 in summer (EDT), and is the default business time for much of the US East Coast.
US Mountain. US Mountain Time is UTC-7 in winter (MST) and UTC-6 in summer (MDT). Arizona is the notable exception and stays on MST all year.
Frequently asked questions
What time is 9 AM ET in MT?
On 15 January, 09:00 in US Eastern is 07:00 in US Mountain. On 15 July it is 07:00.
What is the time difference between US Eastern and US Mountain?
US Mountain is 2 hours behind US Eastern all year.
Does the time difference between ET and MT change during the year?
No. Neither zone changes its clocks in a way that alters the gap, so the difference stays at 2 hours.
When is the best time for a meeting between US Eastern and US Mountain?
Inside both working days (09:00-17:00): 11:00-17:00 ET = 09:00-15:00 MT. In July: Inside both working days (09:00-17:00): 11:00-17:00 ET = 09:00-15:00 MT.
More conversions
Need the time in a scheduler? Convert a local-time cron schedule to UTC, or see which jobs a clock change affects with the DST collision simulator.