Idaho local data guide

Time Zone Guide: Boise, Idaho

Boise, Idaho, operates within the Mountain Time Zone, which observes seasonal adjustments for Daylight Saving Time. As of August 24, 2026, Boise is in Mountain Daylight Time (MDT).

Updated with grounded research as of 2026-08-24.

The short answer

As of August 24, 2026, Boise, Idaho, is observing Mountain Daylight Time (MDT), which corresponds to a UTC/GMT offset of UTC-6. Because Boise observes Daylight Saving Time, the city's offset from Coordinated Universal Time shifts seasonally between UTC-6 in the summer and UTC-7 in the winter.

Key facts

Current Time Zone (August 24, 2026)
Mountain Daylight Time (MDT)
Current UTC/GMT Offset
UTC-6
Standard Time Offset
UTC-7 (Mountain Standard Time)

Understanding Mountain Time in Idaho

Boise sits within the Mountain Time Zone, a region that spans parts of the Western United States. For residents and those relocating to the Treasure Valley, understanding this alignment is crucial for scheduling virtual meetings with collaborators on the East or West Coasts and planning travel. The Mountain Time Zone serves as the primary standard for almost all of Southern Idaho.

Daylight Saving Time (DST) Schedule

Like most of the United States, Boise observes Daylight Saving Time. Clocks are adjusted twice annually, which shifts the city's relationship to Coordinated Universal Time (UTC/GMT).

For the 2026 calendar year, the schedule is as follows:

  • DST began on March 8, 2026.
  • DST ends on November 1, 2026, when clocks move back one hour to Mountain Standard Time (MST).

Planning Considerations for Relocation

When coordinating logistics for a move to Boise, ensure that all transit providers, utility transfer appointments, and professional meetings are calculated according to local Mountain time. If you are moving from a state that does not observe Daylight Saving Time (such as Arizona or parts of Hawaii), remember that your time difference relative to Boise will fluctuate throughout the year.

Common questions

Does all of Idaho observe the same time zone?

No. While Boise and the majority of Idaho observe Mountain Time, the northern part of the state, known as the Idaho Panhandle (located north of the Salmon River), observes Pacific Time.

What is the difference between MST and MDT?

MST stands for Mountain Standard Time (UTC-7) and is observed during the winter months. MDT stands for Mountain Daylight Time (UTC-6) and is observed during the spring, summer, and early autumn months.

Related Idaho questions

  • Does all of Idaho observe the same time zone?
  • When do the clocks change in Idaho?
  • What is the difference between MST and MDT?

Sources and verification