MST Time Now — Mountain Standard Time
The current MST time (Mountain Standard Time, UTC -07:00) is shown below. Most of the Mountain zone switches to MDT in summer; Arizona (Phoenix) stays on MST year-round.
MST — UTC -07:00
Thursday, 22 October 2026 MST
The clock always shows MST (UTC -07:00). Places in this zone switch between standard and daylight time during the year, so their local time can differ from MST by an hour.
Where MST is used
In 2026, 10 zones in the tz database show MST : 4 all year and 6 only part of the year, switching to MDT for the rest . The all-year zones are the ones that don't observe daylight saving: Canada, United States.
| Zone | Country | January | July |
|---|---|---|---|
| America/Boise | United States | MST -07:00 | MDT -06:00 |
| America/Cambridge Bay | Canada | MST -07:00 | MDT -06:00 |
| America/Ciudad Juarez | Mexico | MST -07:00 | MDT -06:00 |
| America/Creston | Canada | MST -07:00 | MST -07:00 |
| America/Dawson Creek | Canada | MST -07:00 | MST -07:00 |
| America/Denver | United States | MST -07:00 | MDT -06:00 |
| America/Edmonton | Canada | MST -07:00 | MDT -06:00 |
| America/Fort Nelson | Canada | MST -07:00 | MST -07:00 |
| America/Inuvik | Canada | MST -07:00 | MDT -06:00 |
| America/Phoenix | United States | MST -07:00 | MST -07:00 |
About MST
Offset & DST
UTC offset: -07:00
Daylight saving: Observed
Daylight-time counterpart: MDT (UTC -06:00)
Representative IANA zone: America/Denver
IANA zones at MST
Converting MST to other time zones
MST is fixed at UTC -07:00 — written -0700 in email headers and -07:00 in ISO 8601 timestamps. In 2026, Denver is on MST until 8 March and from 1 November to the end of the year. The table below uses each abbreviation's own fixed offset; for a specific place, check its city page, since local clocks switch between standard and daylight abbreviations.
| Zone | Difference | When it's 12:00 MST | Converter |
|---|---|---|---|
| UTC Coordinated Universal Time | +7 h | 19:00 | Hour by hour → |
| PST Pacific Standard Time | −1 h | 11:00 | Hour by hour → |
| CST Central Standard Time | +1 h | 13:00 | Hour by hour → |
| EST Eastern Standard Time | +2 h | 14:00 | Hour by hour → |
| BRT Brasília Time | +4 h | 16:00 | Hour by hour → |
| BST British Summer Time | +8 h | 20:00 | Hour by hour → |
| CET Central European Time | +8 h | 20:00 | Hour by hour → |
| EET Eastern European Time | +9 h | 21:00 | Hour by hour → |
| MSK Moscow Standard Time | +10 h | 22:00 | Hour by hour → |
| GST Gulf Standard Time | +11 h | 23:00 | Hour by hour → |
| IST India Standard Time | +12:30 h | 00:30 (+1 day) | Hour by hour → |
| CST China Standard Time | +15 h | 03:00 (+1 day) | Hour by hour → |
| JST Japan Standard Time | +16 h | 04:00 (+1 day) | Hour by hour → |
| AEST Australian Eastern Standard Time | +17 h | 05:00 (+1 day) | Hour by hour → |
MST can mean something else
Time zone abbreviations are not unique. Besides Mountain Standard Time, MST is also used for:
- Malaysia Standard Time (UTC +08:00) — Malaysia (more often written MYT)
When the difference matters — meeting invites, software, contracts — write the UTC offset (UTC -07:00) or an IANA zone name such as America/Denver instead.
Countries commonly using MST
Other zones at UTC -07:00
MST questions
- What is MST in UTC?
- MST (Mountain Standard Time) is UTC -07:00. In ISO 8601 timestamps it is written -07:00, in email and HTTP headers -0700.
- Is MST the same as MDT?
- No. MST is UTC -07:00; MDT is UTC -06:00, the daylight-saving time the same places use for the other part of the year. In 2026, Denver is on MST until 8 March and from 1 November to the end of the year.
- Which countries use MST?
- In 2026, zones showing MST are found in Canada, Mexico, United States.
- Does MST mean anything else?
- Yes. MST is also used for Malaysia Standard Time (UTC +08:00). Use a UTC offset or an IANA zone name when it matters.
More tools for MST
Look up the exact IANA zone behind MST, see it on the offset map, or compare it against other cities.