When it's 9:00 am in Denver, it's 11:00 am in New York. Your 9-to-5 working days overlap for 6 hours, so there's room for a meeting most days.
Convert Mountain Daylight Time (MDT) to Eastern Standard Time (EST) for any date and time.
Eastern Time is 2 hours ahead of Mountain Time all year.
Right now Mountain Time is on MST (UTC−7) and Eastern Time is on EST (UTC−5). Both switch to daylight saving time on 14 March 2027.
9:00 am to 5:00 pm MST is 11:00 am to 7:00 pm EST.
Mountain TimeReference
US & Canada; Arizona stays on MST
Tue, Nov 3
Eastern Time
US & Canada
Tue, Nov 3
Best time to meet 9:00 AM–3:00 PM in Mountain Time on Tue, Nov 3, when everyone is inside working hours.
Book a meeting in this windowWorking hours: 9:00 AM–5:00 PM, Monday to FridayEveryone at work
Every hour of the day in MST, converted to EST. Hatched cells are working hours (9:00 am to 5:00 pm); rows with the accent bar are working hours in both zones.
| MST | EST |
|---|---|
| 12:00 am MST | 2:00 am EST |
| 1:00 am MST | 3:00 am EST |
| 2:00 am MST | 4:00 am EST |
| 3:00 am MST | 5:00 am EST |
| 4:00 am MST | 6:00 am EST |
| 5:00 am MST | 7:00 am EST |
| 6:00 am MST | 8:00 am EST |
| 7:00 am MST | 9:00 am EST |
| 8:00 am MST | 10:00 am EST |
| 9:00 am MST | 11:00 am EST |
| 10:00 am MST | 12:00 pm EST |
| 11:00 am MST | 1:00 pm EST |
| 12:00 pm MST | 2:00 pm EST |
| 1:00 pm MST | 3:00 pm EST |
| 2:00 pm MST | 4:00 pm EST |
| 3:00 pm MST | 5:00 pm EST |
| 4:00 pm MST | 6:00 pm EST |
| 5:00 pm MST | 7:00 pm EST |
| 6:00 pm MST | 8:00 pm EST |
| 7:00 pm MST | 9:00 pm EST |
| 8:00 pm MST | 10:00 pm EST |
| 9:00 pm MST | 11:00 pm EST |
| 10:00 pm MST | 12:00 am EST(next day) |
| 11:00 pm MST | 1:00 am EST(next day) |
Your working hours overlap for 6 hours, from 9:00 am MST (11:00 am EST) to 3:00 pm MST (5:00 pm EST). That's the best window for a meeting.
Mountain Daylight Time is UTC−6.
Colorado, Utah, New Mexico, Wyoming, Montana and southern Idaho, plus Alberta, from March to November. Most of Arizona never uses MDT: it stays on MST all year.
MDT isn't in use at the moment: Mountain Time is on MST (UTC−7) until 14 March 2027. The times on this page follow the clocks, so they show MST.
Eastern Standard Time is UTC−5.
New York, Florida, Georgia, the Carolinas, Ohio, Michigan and the rest of the East Coast, plus Ontario and Quebec in Canada. Panama, Jamaica and Cancún stay on EST all year. ET is the short form for the whole zone.