MST/MDT: Mountain Time
Mountain Time, UTC−6 right now. Used in US & Canada; Arizona stays on MST. Clocks go back 1 hour on Sun, Nov 1, 2026.
MST · Mountain Time
MDT
Tuesday, October 27, 2026
UTC−6
- Abbreviation
- MST/MDT
- Full name
- Mountain Time
- UTC offset now
- UTC−6
- Standard time
- UTC−7
- Daylight time
- UTC−6
- Daylight saving
- Yes
- Reference zone
America/Denver- Where
- US & Canada; Arizona stays on MST
Daylight saving time in MST
DST started
Sun, Mar 8, 2026
Clocks went forward 1 hour
DST ends
Sun, Nov 1, 2026
Clocks go back 1 hour
Winter
UTC−7
MST
Summer
UTC−6
MDT
MST is the standard time; in summer the zone is on MDT, UTC−6. Clocks go back 1 hour on Sun, Nov 1, 2026.
Countries and cities on MST
Where Mountain Time is kept, with each country's largest cities in the zone. Open a city for its clock, sunrise and sunset, and the time difference to the rest of the world.
| City | Local time | Compared to MST |
|---|---|---|
| United StatesPhoenix, Denver, El Paso | Tue 2:00 AM | −1h (behind) |
| CanadaCalgary, Edmonton, Lethbridge | Tue 3:00 AM | Same time |
| MexicoCiudad Juárez | Tue 3:00 AM | Same time |
Convert MST
Frequently asked questions
The clock at the top of this page shows the current time in Mountain Time (MST, or MDT in summer), following the rules of the America/Denver time zone. It is UTC−6 at the moment.
MST stands for Mountain Time. It is used in US & Canada; Arizona stays on MST.
MST is UTC−7. During daylight saving time the same places are on MDT, UTC−6.
MST is the standard time; in summer the zone is on MDT, UTC−6. Clocks go back 1 hour on Sun, Nov 1, 2026.
Other time zones
- UTCThe world's reference time
- GMTUTC+0 all year
- EST/EDTUS & Canada
- CST/CDTUS
- PST/PDTUS & Canada
- AKST/AKDTAlaska
- HSTHawaii
- AST/ADTAtlantic Canada & the Caribbean
- NST/NDTNewfoundland
- GMT/BSTUnited Kingdom
- WET/WESTPortugal & the Canary Islands
- CET/CESTBerlin
- EET/EESTAthens
- MSKMoscow
- TRTTürkiye
- EATNairobi
- CATMaputo
- SASTSouth Africa
- WATLagos
- ASTSaudi Arabia
- GSTUAE & Oman
- IRSTIran
- PKTPakistan
- ISTIndia
- IST/IDTIsrael
- GMT/ISTIreland
- NPTNepal
- BSTBangladesh
- ICTThailand
- WIBJakarta
- CSTChina
- HKTHong Kong
- SGTSingapore
- MYTMalaysia
- PHTPhilippines
- AWSTPerth
- JSTJapan
- KSTSouth Korea
- ACST/ACDTAdelaide
- AEST/AEDTSydney
- NZST/NZDTNew Zealand
- BRTSão Paulo
- ARTArgentina
- CST/CDTCuba
- SSTAmerican Samoa
- AoEUTC−12 all year
Place data from GeoNames (CC BY 4.0). Times follow the IANA time zone database; sunrise and sunset are computed for the city's coordinates.