Idaho local data guide

Boise, Idaho Time Zone

Boise operates within the Mountain Time Zone, which is consistent across the majority of southern Idaho. It is important for those relocating to the state to be aware that Idaho is geographically divided, with the northern Panhandle region operating in the Pacific Time Zone.

Updated with grounded research as of 2026-10-19.

The short answer

Boise, Idaho, is located in the Mountain Time Zone. It observes Mountain Standard Time (MST, UTC-7) during the winter months and Mountain Daylight Time (MDT, UTC-6) during the summer, adhering to federal daylight saving time regulations.

Key facts

Primary Time Zone
Mountain Time Zone
Standard Time Offset
UTC-7 (MST)
Daylight Saving Offset
UTC-6 (MDT)

Understanding Idaho's Geographic Split

Idaho is one of only 14 states in the U.S. that spans two distinct time zones. For residents and those planning travel or business across the state, it is vital to distinguish between the southern portion and the northern Panhandle.

  • Southern Idaho (including Boise, Twin Falls, and Idaho Falls): Mountain Time Zone.
  • Northern Idaho (the Panhandle region, including Coeur d'Alene and Moscow): Pacific Time Zone.
  • The Salmon River typically acts as the approximate dividing line between these two zones.

Daylight Saving Time Practices

Like the majority of the United States, Boise observes daylight saving time. Clocks are adjusted twice annually to align with federal mandates, which shifts the region's offset from UTC-7 to UTC-6.

This shift impacts sunrise and sunset times, which can affect local construction schedules, business hours, and outdoor lifestyle planning for new residents.

Planning Across Regional Boundaries

If you are relocating to Boise but have family, clients, or business interests in northern Idaho, remember that crossing the time zone boundary effectively changes your local time by one hour. Always verify the specific time zone when scheduling meetings or travel appointments between the Treasure Valley and the northern Panhandle.

Common questions

Is Boise in the same time zone as Seattle?

No. Boise is in the Mountain Time Zone, while Seattle is in the Pacific Time Zone. Boise is one hour ahead of Seattle.

Does the whole state of Idaho change time at the same time?

Yes. While northern Idaho is in the Pacific Time Zone and southern Idaho is in the Mountain Time Zone, both regions observe daylight saving time simultaneously, maintaining the one-hour difference between the two regions throughout the year.

Related Idaho questions

  • What is the current time in Boise, Idaho?
  • Why does Idaho have two different time zones?
  • When does Daylight Saving Time end in Idaho?

Sources and verification