IANA time zone · Mountain Time
America/Boise
- UTC offset
- UTC-7
- Now
- Mountain Standard Time (MST)
- Country
- United States
- Area (zone.tab)
- Mountain - ID (south), OR (east)
Clock changes in 2026 and 2027
- March 8, 2026, 2:00 AM → 3:00 AM: clocks go forward 1 h (UTC-6, MDT)
- November 1, 2026, 2:00 AM → 1:00 AM: clocks go back 1 h (UTC-7, MST)
- March 14, 2027, 2:00 AM → 3:00 AM: clocks go forward 1 h (UTC-6, MDT)
- November 7, 2027, 2:00 AM → 1:00 AM: clocks go back 1 h (UTC-7, MST)
Cities in the America/Boise zone
- Boise United States
The identifier America/Boise comes from the IANA time zone database (tz database) used by operating systems, browsers and programming languages. A zone in this database is an area where clocks have agreed since 1970 – which is why one country can have several zones with the same offset.