Offset
The time difference between Moscow Time and Mountain Time is 9 hours.
Moscow Time (MSK) is ahead of Mountain Time (MDT).
MSK: UTC+3
MDT: UTC-6
Mountain Time is currently observing daylight saving time; Moscow Time is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Moscow Time and Mountain Time don't overlap on the same weekday. Mountain Time is 9 hours behind Moscow Time.
With some flexibility, there’s a workable window outside standard hours:
- 4 PM–8 PM in Moscow Time (7 AM–11 AM in Mountain Time) — suggest 6:00 PM Moscow Time (9:00 AM Mountain Time).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
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.
Russia
- New Year's DayThu, Jan 1
- New Year holidayFri, Jan 2
- New Year holidaySat, Jan 3
- New Year holidaySun, Jan 4
- New Year holidayMon, Jan 5
- New Year holidayTue, Jan 6
- Christmas Day (Orthodox)Wed, Jan 7
- Defender of the Fatherland DayMon, Feb 23
- International Women's DaySun, Mar 8
- Labour DayFri, May 1
- Victory DaySat, May 9
- Russia DayFri, Jun 12
- Unity DayWed, Nov 4
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
Moscow Time is also known as MSK. To call Russia, dial +7.
Mountain Time is also known as MST, or MDT. To call United States, dial +1.
Mountain Time is approximately 5,500 miles northwest of Moscow Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| MSK | MST | Day |
|---|---|---|
| 12:00 am | 3:00 pm | -1 day |
| 1:00 am | 4:00 pm | -1 day |
| 2:00 am | 5:00 pm | -1 day |
| 3:00 am | 6:00 pm | -1 day |
| 4:00 am | 7:00 pm | -1 day |
| 5:00 am | 8:00 pm | -1 day |
| 6:00 am | 9:00 pm | -1 day |
| 7:00 am | 10:00 pm | -1 day |
| 8:00 am | 11:00 pm | -1 day |
| 9:00 am | 12:00 am | Same day |
| 10:00 am | 1:00 am | Same day |
| 11:00 am | 2:00 am | Same day |
| 12:00 pm | 3:00 am | Same day |
| 1:00 pm | 4:00 am | Same day |
| 2:00 pm | 5:00 am | Same day |
| 3:00 pm | 6:00 am | Same day |
| 4:00 pm | 7:00 am | Same day |
| 5:00 pm | 8:00 am | Same day |
| 6:00 pm | 9:00 am | Same day |
| 7:00 pm | 10:00 am | Same day |
| 8:00 pm | 11:00 am | Same day |
| 9:00 pm | 12:00 pm | Same day |
| 10:00 pm | 1:00 pm | Same day |
| 11:00 pm | 2:00 pm | Same day |
Daylight saving time
Mountain Time observes daylight saving time; Moscow Time does not. The offset between the two zones changes when Mountain Time transitions: on Sunday, November 1, 2026, clocks fall back from MDT to MST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 3:51 AM
- Sunset
- 9:07 PM
- Day length
- 17h 17m
- Sunrise
- 5:34 AM
- Sunset
- 8:25 PM
- Day length
- 14h 51m
Daylight overlap: 1h 34m — 3:51 AM–5:25 AM in Moscow Time (6:51 PM–8:25 PM in Mountain Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Moscow Time
Cities in Mountain Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Moscow Time
- DME
- SVO
- VKO
- ZIA
- LED
- GOJ
Airports in Mountain Time
- BJC
- DEN
- OGD
- SLC
Related conversions
Common conversions
- What is 9:00 am MSK in MST?
- 9:00 am MSK is 12:00 am MST.
- What is 12:00 pm MSK in MST?
- 12:00 pm MSK is 3:00 am MST.
- What is 12:30 pm MSK in MST?
- 12:30 pm MSK is 3:30 am MST.
- What is 2:00 pm MSK in MST?
- 2:00 pm MSK is 5:00 am MST.
- What is 5:00 pm MSK in MST?
- 5:00 pm MSK is 8:00 am MST.
- What is 11:30 pm MSK in MST?
- 11:30 pm MSK is 2:30 pm MST.