ID time guide
Idaho spans Mountain and Pacific Time, with the federal boundary following state, county, and river lines described in regulation.
Partial-state coverage
Southern and much of central Idaho use Mountain Time.
Partial-state coverage
Northern Idaho uses Pacific Time.
Idaho follows the federal daylight-saving schedule in both time-zone areas.
Time-zone boundaries can follow county lines and local legal definitions rather than a simple east-west line. Check the exact address when timing matters.
Find a time zone by address