IANA Name: US/Mountain
Standard Offset: UTC −07:00
Daylight Saving: Yes
DST Offset: UTC −06:00
DST Abbreviation: MDT
Currently Observing DST: Yes ✅
FAQ — US/Mountain
Common questions about this page — answers customized for the data shown above.
The current local time in US/Mountain is 04:13:26. US/Mountain is currently UTC-07:00. Compare with all major time zones.
US/Mountain is an IANA (Internet Assigned Numbers Authority) time zone identifier. IANA names use a Region/City format (e.g. Europe/London, America/New_York) and are the global standard used by Unix, Linux, macOS, Java, Python, and most modern software. Browse the full list of IANA time zones.
Yes — US/Mountain observes DST. In standard time it is MST UTC-07:00; during DST it switches to MDT UTC-06:00. Exact transition dates follow the local government's DST rules and are baked into the IANA tz database.
US/Mountain is used (in whole or in part) by United States. See the time zone map for a geographic view of all zones.
Use the time zone converter to translate between US/Mountain and any other zone. The converter handles DST transitions automatically and accepts either IANA names or city names as inputs.