Time in Great Falls, Montana, United States

Great Falls currently uses Mountain Daylight Time (MDT), and the time zone offset is UTC-06:00.

What time is it in Great Falls?

The current time in Great Falls is 5:42 am (July 15, 2026). The sun rises at 5:42 am and set at 9:20 pm. The length of the day is 15 hours and 38 minutes. Sunrise tomorrow is at 5:43 am, and sunset is at 9:19 pm.

 

 

Sunrise

5:42 am

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Sunset

9:20 pm

Use the slider above to view the day and night map at different times of the day.

Day–night colors on the map:

 Day

 Civil twilight

 Nautical twilight

 Astronomical twilight

 Night

The next time change in Great Falls

Clocks in Great Falls will move back one hour on the first Sunday in November, with the time change taking place at 2 am on Sunday, November 01, 2026.