MST to MSD Converter
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
9:00 am09:00 MST (UTC-7), Nov 1, 2026 = 7:00 pm19:00 MSK (UTC+3), Nov 1, 2026
MST is 10 hours behind MSK.
MST and MSD examples
These examples always use MST (UTC-7) and MSD (UTC+4). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
MST is 11 hours behind MSD.
Most of Arizona stays on MST (UTC-7) all year. Places such as Denver use MDT (UTC-6) during daylight saving time, one hour later. For daylight-time examples, use MDT to MSK.
How the time difference changes
For most of the year, MDT is 9 hours behind MSK. From Nov 1, 2026 to Mar 14, 2027, MST is 10 hours behind MSK.
For most of the year, working hours of 9:00 am to 6:00 pm in MDT correspond to 6:00 pm to 3:00 am (next day) in MSK. At other times of the year, working hours of 9:00 am to 6:00 pm in MST correspond to 7:00 pm to 4:00 am (next day) in MSK.For most of the year, working hours of 09:00 to 18:00 in MDT correspond to 18:00 to 03:00 (next day) in MSK. At other times of the year, working hours of 09:00 to 18:00 in MST correspond to 19:00 to 04:00 (next day) in MSK.
Compare MST time with MSD time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Mountain Standard Time is 10 hours behind Moscow Standard Time.
9:00 am09:00 in MST is 7:00 pm19:00 in MSK
MST to MSK call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in MST which corresponds to 6pm-7pm18:00-19:00 in MSK. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
9:00 am09:00 Mountain Standard Time (MST). Offset UTC -7:00 hours
7:00 pm19:00 Moscow Standard Time (MSK). Offset UTC +3:00 hours
9:00 am09:00 MST / 7:00 pm19:00 MSK
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| MST | MSK |
|---|---|
| 9:00am | |
| 10:00am | |
| 12:00pm | |
| 1:00pm | |
| 2:00pm | |
| 3:00pm | |
| 4:00pm | |
| 5:00pm | |
| 6:00pm | |
| 7:00pm | |
| 8:00pm | |
| 9:00pm | |
| 10:00pm | |
| 11:00pm | |
| 12:00am next day | |
| 1:00am next day | |
| 2:00am next day | |
| 3:00am next day | |
| 4:00am next day | |
| 5:00am next day | |
| 6:00am next day | |
| 7:00am next day | |
| 8:00am next day | |
| 9:00am next day | |
| 09:00 | |
| 10:00 | |
| 12:00 | |
| 13:00 | |
| 14:00 | |
| 15:00 | |
| 16:00 | |
| 17:00 | |
| 18:00 | |
| 19:00 | |
| 20:00 | |
| 21:00 | |
| 22:00 | |
| 23:00 | |
| 00:00 next day | |
| 01:00 next day | |
| 02:00 next day | |
| 03:00 next day | |
| 04:00 next day | |
| 05:00 next day | |
| 06:00 next day | |
| 07:00 next day | |
| 08:00 next day | |
| 09:00 next day |
Mountain Standard Time
Offset: MST is 7 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the MST time zone is Phoenix in the United States, with about 1.65 million people. Other major cities in this time zone include Ciudad Juárez, Hermosillo, Culiacán, Denver.
French: HNR - Heure Normale des Rocheuses
Spanish: MT - Zona Pacífico
Today all shaded areas are on MST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Mountain Daylight Time (MDT).
Start: Mountain Standard Time (MST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
End: Mountain Standard Time (MST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
MST representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
- Tango - Military abbreviation for MST
- T - short form of 'Tango'
- America/Boise
- America/Cambridge_Bay
- America/Ciudad_Juarez
- America/Creston
- America/Dawson
- America/Dawson_Creek
- America/Denver
- America/Edmonton
- America/Fort_Nelson
- America/Hermosillo
- America/Inuvik
- America/Mazatlan
- America/Phoenix
- America/Shiprock
- America/Whitehorse
- America/Yellowknife
- Canada/Mountain
- Canada/Yukon
- MST
- MST7MDT
- Mexico/BajaSur
- Navajo
- US/Arizona
- US/Mountain
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone
Moscow Daylight Time
Offset: MSD is 4 hours ahead of Greenwich Mean Time (GMT).
MSD representations, usage and related time zones
- +04 - basic short
- +0400 - basic
- +04:00 - extended
- +0400 - sign character (+) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the east of the zero meridian.
- Delta - Military abbreviation for MSD
- D - short form of 'Delta'
- KUYT - Kuybyshev Time
- MSD - Moscow Daylight Time
- SAMT - Samara Time
- AMT - Armenia Time
- AZT - Azerbaijan Time
- D - Delta Time Zone
- GET - Georgia Standard Time
- GST - Gulf Standard Time
- MUT - Mauritius Time
- RET - Reunion Time
- SCT - Seychelles Time