Offset
The time difference between Detroit and Mountain Time is 2 hours.
Detroit (EDT) is ahead of Mountain Time (MDT).
EDT: UTC-4
MDT: UTC-6
Both zones are currently observing daylight saving time.
When to schedule
Business-hours overlap: 11 AM–5 PM in Detroit (9 AM–3 PM in Mountain Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 2:00 PM Detroit (12:00 PM Mountain Time).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Detroit uses Eastern Time (EST, or EDT). To call United States, dial +1.
Mountain Time is also known as MST, or MDT. To call United States, dial +1.
Mountain Time is approximately 1,150 miles west of Detroit.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Detroit | MST | Day |
|---|---|---|
| 12:00 am | 10:00 pm | -1 day |
| 1:00 am | 11:00 pm | -1 day |
| 2:00 am | 12:00 am | Same day |
| 3:00 am | 1:00 am | Same day |
| 4:00 am | 2:00 am | Same day |
| 5:00 am | 3:00 am | Same day |
| 6:00 am | 4:00 am | Same day |
| 7:00 am | 5:00 am | Same day |
| 8:00 am | 6:00 am | Same day |
| 9:00 am | 7:00 am | Same day |
| 10:00 am | 8:00 am | Same day |
| 11:00 am | 9:00 am | Same day |
| 12:00 pm | 10:00 am | Same day |
| 1:00 pm | 11:00 am | Same day |
| 2:00 pm | 12:00 pm | Same day |
| 3:00 pm | 1:00 pm | Same day |
| 4:00 pm | 2:00 pm | Same day |
| 5:00 pm | 3:00 pm | Same day |
| 6:00 pm | 4:00 pm | Same day |
| 7:00 pm | 5:00 pm | Same day |
| 8:00 pm | 6:00 pm | Same day |
| 9:00 pm | 7:00 pm | Same day |
| 10:00 pm | 8:00 pm | Same day |
| 11:00 pm | 9:00 pm | Same day |
Daylight saving time
Both Detroit and Mountain Time observe daylight saving time and transition on the same date.
Next transition: Sunday, November 1, 2026 (fall back).
Because they transition simultaneously, the offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:16 AM
- Sunset
- 9:02 PM
- Day length
- 14h 46m
- Sunrise
- 5:51 AM
- Sunset
- 8:23 PM
- Day length
- 14h 33m
Cities in these zones
Cities in Mountain Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Eastern Time
- DTW
Airports in Mountain Time
- BJC
- DEN
- OGD
- SLC
Related conversions
Common conversions
- What is 9:00 am Detroit in MST?
- 9:00 am Detroit is 7:00 am MST.
- What is 12:00 pm Detroit in MST?
- 12:00 pm Detroit is 10:00 am MST.
- What is 12:30 pm Detroit in MST?
- 12:30 pm Detroit is 10:30 am MST.
- What is 2:00 pm Detroit in MST?
- 2:00 pm Detroit is 12:00 pm MST.
- What is 5:00 pm Detroit in MST?
- 5:00 pm Detroit is 3:00 pm MST.
- What is 11:30 pm Detroit in MST?
- 11:30 pm Detroit is 9:30 pm MST.