Cal.com
Open AppGet started

EDT to MST converter

When it's 9:00 am in New York, it's 7:00 am in Denver. Your 9-to-5 working days overlap for 6 hours, so there's room for a meeting most days.

Convert Eastern Daylight Time (EDT) to Mountain Standard Time (MST) for any date and time.

Mountain Time is 2 hours behind Eastern Time all year.

Right now Eastern Time is on EDT (UTC−4) and Mountain Time is on MDT (UTC−6). Both switch back to standard time on 1 November 2026.

US clocks go back on 1 November 2026. From then, MST is still 2 hours behind EDT.

9:00 am to 5:00 pm EDT is 7:00 am to 3:00 pm MDT.

Live: showing the current time
  • Eastern TimeReference

    US & Canada

    Fri, Oct 23

    EDT · UTC−4ReferenceOutside working hours
  • Mountain Time

    US & Canada; Arizona stays on MST

    Fri, Oct 23

    MDT · UTC−6−2h from Eastern TimeOutside working hours

Best time to meet: 11:00 AM–5:00 PM in Eastern Time on Fri, Oct 23, when everyone is inside working hours.

Book a meeting in this window

Working hours: 9:00 AM–5:00 PM, Monday to FridayEveryone at work

EDT to MST conversion table

Every hour of the day in EDT, converted to MDT. Shaded cells are working hours (9:00 am to 5:00 pm); green rows are working hours in both zones.

EDT to MST, hour by hour
EDTMDT
12:00 am EDT10:00 pm MDT(day before)
1:00 am EDT11:00 pm MDT(day before)
2:00 am EDT12:00 am MDT
3:00 am EDT1:00 am MDT
4:00 am EDT2:00 am MDT
5:00 am EDT3:00 am MDT
6:00 am EDT4:00 am MDT
7:00 am EDT5:00 am MDT
8:00 am EDT6:00 am MDT
9:00 am EDT7:00 am MDT
10:00 am EDT8:00 am MDT
11:00 am EDT9:00 am MDT
12:00 pm EDT10:00 am MDT
1:00 pm EDT11:00 am MDT
2:00 pm EDT12:00 pm MDT
3:00 pm EDT1:00 pm MDT
4:00 pm EDT2:00 pm MDT
5:00 pm EDT3:00 pm MDT
6:00 pm EDT4:00 pm MDT
7:00 pm EDT5:00 pm MDT
8:00 pm EDT6:00 pm MDT
9:00 pm EDT7:00 pm MDT
10:00 pm EDT8:00 pm MDT
11:00 pm EDT9:00 pm MDT

Best times to meet

Your working hours overlap for 6 hours, from 11:00 am EDT (9:00 am MDT) to 5:00 pm EDT (3:00 pm MDT). That's the best window for a meeting.

About these time zones

EDT: Eastern Daylight Time

Eastern Daylight Time is UTC−4.

New York, Florida, Georgia, the Carolinas, Ohio, Michigan and the rest of the East Coast, plus Ontario and Quebec, from March to November.

MST: Mountain Standard Time

Mountain Standard Time is UTC−7. MST is also used for Malaysia Standard Time (UTC+8). This page converts US Mountain Time.

Colorado, Utah, New Mexico, Wyoming, Montana and southern Idaho, plus Alberta in Canada. Most of Arizona stays on MST all year (the Navajo Nation follows daylight saving time). MT is the short form for the whole zone.

Most places on Mountain Time are on MDT (UTC−6) right now, not MST. People still say "MST" all year, so the times on this page follow the clocks and show MDT until 1 November 2026.

How the difference changes

Both zones change their clocks on the same dates (next on 1 November 2026), so the difference stays 2 hours all year.

Frequently asked questions

Related conversions