Time in Idaho

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Idaho Locator Map.PNG

The U.S. state of Idaho is covered by two time zones, as described below. All locations observe daylight saving time.

The Pacific Time Zone (UTC-08:00, DST UTC-07:00) covers an area roughly coterminous with the Idaho Panhandle or North Idaho:

The Mountain Time Zone (UTC-07:00, DST UTC-06:00) covers the rest of the state.


The 1918 Standard Time Act put most of Idaho into the Pacific Time Zone – only the very eastern parts were in the Mountain Time Zone.[1]

tz database[edit]

The tz database version 2014b contains two time zones for Idaho:

CC Coordinates TZ Comments UTC offset UTC offset DST Notes
US +340308-1181434 America/Los_Angeles Pacific Time −08:00 −07:00
US +433649-1161209 America/Boise Mountain Time - south Idaho & east Oregon −07:00 −06:00