Convert Eastern Time to Mountain Standard Time - Quick & Accurate
Updates live every second
Hover over any hour to see corresponding time in both zones
To schedule a meeting between ET and MST:
Pro Tip: Schedule calls during the overlap window for optimal convenience for both time zones
| ET Time | MST Time | Context |
|---|---|---|
| 12:00 AM | 10:00 PM | Midnight ET |
| 01:00 AM | 11:00 PM | Late Night |
| 02:00 AM | 12:00 AM | Late Night |
| 03:00 AM | 01:00 AM | Late Night |
| 04:00 AM | 02:00 AM | Late Night |
| 05:00 AM | 03:00 AM | Late Night |
| 06:00 AM | 04:00 AM | Early Morning ET |
| 07:00 AM | 05:00 AM | Night Time |
| 08:00 AM | 06:00 AM | Night Time |
| 09:00 AM | 07:00 AM | Work Starts ET |
| 10:00 AM | 08:00 AM | Night Time |
| 11:00 AM | 09:00 AM | Night Time |
New York
America/New_York
Denver
America/Denver
MST (Mountain Standard Time) is 2 hours behind ET (Eastern Time). This means when it's 12:00 PM in New York (ET), it's 10:00 AM in Denver (MST).
The best time to call from ET to MST is during overlapping business hours. For ET callers, schedule between 12:00 PM - 5:00 PM ET to ensure both parties are within standard business hours.
The time difference may change during daylight saving transitions if one region observes DST while the other doesn't. Eastern Time (UTC-5 (EST) / UTC-4 (EDT)) and Mountain Standard Time (UTC-7 (MST) / UTC-6 (MDT)) may have different DST schedules.
ET includes cities like New York. MST includes cities like Denver. Both time zones cover important business and cultural centers.
In 2025, DST in North America starts on March 9 at 2:00 AM and ends on November 2 at 2:00 AM. Other regions may have different DST schedules or not observe DST at all.