Current MST time
· week 43 · day 294/365
Mountain Standard Time
MST means Mountain Standard Time. It is fixed at UTC-7 and does not change for daylight saving time.
- Zone
- MST
- UTC offset
- UTC-7
- DST
- No
- Next change
- None
- Countries
- 2
- Representative IANA zones
- 2
- 09:00 in UTC
- 16:00
These IANA zones keep UTC-7 under the current tzdb rules; historical offsets may differ.
America/PhoenixAmerica/Hermosillo
MT uses MST (UTC-7) during standard time and MDT (UTC-6) during daylight saving time. The fixed abbreviations keep their own offsets. MT
Time difference with your location
Mountain Standard Time is 7 hours behind UTC. Compare with your local time →
Where this time is used
Cities in 2 countries keep UTC-7 throughout 2026. Sharing an offset does not necessarily mean using the same abbreviation.
| Country | States / provinces | Cities |
|---|---|---|
| United States | Arizona | 49 |
| Country | States / provinces | Cities |
|---|---|---|
| Mexico | Baja California Sur · Nayarit · Sinaloa · Sonora | 41 |
Countries and cities in this time zone · MST
12 representative cities below currently show UTC-7.
| Location | Local time | UTC offset |
|---|---|---|
| PhoenixUnited States | UTC-7 | |
| HermosilloMexico | UTC-7 | |
| TucsonUnited States | UTC-7 | |
| MesaUnited States | UTC-7 | |
| ChandlerUnited States | UTC-7 | |
| GilbertUnited States | UTC-7 |
| Location | Local time | UTC offset |
|---|---|---|
| GlendaleUnited States | UTC-7 | |
| ScottsdaleUnited States | UTC-7 | |
| PeoriaUnited States | UTC-7 | |
| TempeUnited States | UTC-7 | |
| Tempe JunctionUnited States | UTC-7 | |
| SurpriseUnited States | UTC-7 |
Other zones with the same UTC offset
3 other time zones share UTC-7 with MST right now. Regional zones may leave this offset when their clocks change.
Quick conversions · MST
MST = UTC-7, so 09:00 MST = 16:00 UTC (on the corresponding UTC day). These 40 zones show the equivalent of 09:00 MST using today's offsets.
| Time zone | UTC · difference | 09:00 MST = |
|---|---|---|
| MST to UTCCoordinated Universal Time | UTC+0+7h | 16:00 |
| MST to ESTEastern Standard Time | UTC-5+2h | 11:00 |
| MST to ISTIndia Standard Time | UTC+5:30+12h30m | 21:30 |
| MST to PSTPacific Standard Time | UTC-8−1h | 08:00 |
| MST to GMTGreenwich Mean Time | UTC+0+7h | 16:00 |
| MST to CSTCentral Standard Time | UTC-6+1h | 10:00 |
| MST to CETCentral European Time | UTC+1+8h | 17:00 |
| MST to AESTAustralian Eastern Standard Time | UTC+10+17h | 02:00 |
| MST to ICTIndochina Time | UTC+7+14h | 23:00 |
| MST to JSTJapan Standard Time | UTC+9+16h | 01:00 |
| MST to KSTKorea Standard Time | UTC+9+16h | 01:00 |
| MST to SGTSingapore Time | UTC+8+15h | 00:00 |
| MST to HKTHong Kong Time | UTC+8+15h | 00:00 |
| MST to BSTBritish Summer Time | UTC+1+8h | 17:00 |
| MST to EDTEastern Daylight Time | UTC-4+3h | 12:00 |
| MST to PDTPacific Daylight Time | UTC-7same time | 09:00 |
| MST to CDTCentral Daylight Time | UTC-5+2h | 11:00 |
| MST to ACDTAustralian Central Daylight Time | UTC+10:30+17h30m | 02:30 |
| MST to ACSTAustralian Central Standard Time | UTC+9:30+16h30m | 01:30 |
| MST to ADTAtlantic Daylight Time | UTC-3+4h | 13:00 |
| Time zone | UTC · difference | 09:00 MST = |
|---|---|---|
| MST to AEDTAustralian Eastern Daylight Time | UTC+11+18h | 03:00 |
| MST to AFSTAfghanistan Time | UTC+4:30+11h30m | 20:30 |
| MST to AKDTAlaska Daylight Time | UTC-8−1h | 08:00 |
| MST to AKSTAlaska Standard Time | UTC-9−2h | 07:00 |
| MST to ALMTAlmaty Time | UTC+5+12h | 21:00 |
| MST to AOEAnywhere on Earth | UTC-12−5h | 04:00 |
| MST to AST-ARABIAArabia Standard Time | UTC+3+10h | 19:00 |
| MST to ARTArgentina Time | UTC-3+4h | 13:00 |
| MST to ASTAtlantic Standard Time | UTC-4+3h | 12:00 |
| MST to AWSTAustralian Western Standard Time | UTC+8+15h | 00:00 |
| MST to BDTBangladesh Time | UTC+6+13h | 22:00 |
| MST to BRTBrasília Time | UTC-3+4h | 13:00 |
| MST to CATCentral Africa Time | UTC+2+9h | 18:00 |
| MST to CTCentral Time | UTC-5+2h | 11:00 |
| MST to CESTCentral European Summer Time | UTC+2+9h | 18:00 |
| MST to CHADTChatham Daylight Time | UTC+13:45+20h45m | 05:45 |
| MST to CHASTChatham Standard Time | UTC+12:45+19h45m | 04:45 |
| MST to CST-CHINAChina Standard Time | UTC+8+15h | 00:00 |
| MST to CHSTChamorro Standard Time | UTC+10+17h | 02:00 |
| MST to CLTChile Time | UTC-4+3h | 12:00 |
Popular conversions
Frequently asked questions
What is MST?
MST means Mountain Standard Time. It is fixed at UTC-7 and does not change for daylight saving time.
Where is MST's UTC offset used?
UTC-7 is used all year in United States and Mexico. 2 countries in our data have cities at this offset; local abbreviations can differ.
Is MST the same as MT?
MT uses MST (UTC-7) during standard time and MDT (UTC-6) during daylight saving time. The fixed abbreviations keep their own offsets.
Which states use MT?
MT is used in all or part of Colorado, Idaho, Montana, New Mexico, North Dakota, South Dakota, Texas, Utah, and Wyoming. Some states span more than one time zone.
MST vs UTC: what is the difference?
MST = UTC-7, so 09:00 MST = 16:00 UTC (on the corresponding UTC day).
Does MST have daylight saving time?
No. MST always means UTC-7. A region may switch to a different abbreviation, but this fixed label does not change its offset.