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Montana, United States

Montana follows Mountain Time statewide. Billings, Missoula, Great Falls, Bozeman, and Butte share one civil clock, while the state’s broad geography makes city-specific sunrise information important.

Helena, United States

Sunday, 6 September 2026

UTC−6 · America/Denver

Time and sun data for Helena — the administrative centre of Montana

The sun in Helena

Sunrise 6:56 AM Solar noon 1:28 PM Sunset 8:00 PM Daylight 13 h 04 min Night 10 h 56 min Civil twilight 6:25 AM – 8:31 PM

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Current time in Montana, United States

Montana observes Mountain Standard Time during standard time and Mountain Daylight Time during daylight saving. A correctly configured device should make the seasonal transition automatically for every community in the state.

When planning with people elsewhere, use Mountain Time together with the event date. Writing only a fixed UTC offset can produce an error when the date falls on the other side of a seasonal clock transition.

Montana may have Big Sky, but it still takes a precise town to tell you where the Sun will clear the ridge.

Local time in Montana’s principal cities

Billings, Montana’s largest city, keeps the same time as Missoula, Great Falls, Bozeman, Butte, and Helena. There is no time-zone boundary within Montana, including along long drives across its eastern and western regions.

Use Mountain Time for Billings and the Yellowstone region within Montana. Retain the same clock setting in Missoula and Kalispell. Schedule Helena and Great Falls events in the statewide zone. Select the nearest town for astronomical times rather than using one Montana estimate.

A single civil clock helps with transport and communication, but Montana extends widely from east to west. Places on opposite sides of the state reach solar noon, sunrise, and sunset at different clock readings. Northern and southern position also affects seasonal daylight.

Mountains, horizons, and sunrise

A calculated sunrise for Billings is not the exact answer for Missoula, Bozeman, or Glacier country. Coordinates change the astronomical time, while nearby terrain changes the observer’s actual view. Mountain ridges can hide the Sun well after it has crossed an ideal, unobstructed horizon.

Elevation may open a view in one direction while a neighboring slope blocks it in another. Valleys, forests, smoke, weather, and buildings add further practical differences. Anyone planning a hike or photograph should use the specific trail area or coordinates and should distinguish published sunrise from first direct sunlight at that spot.

Daylight saving changes the clock labels for dawn and dusk. It does not change the amount of sunlight available on a given astronomical day. Twilight can begin before sunrise even when a ridge still hides the solar disk, making twilight data especially useful for early travel.

Questions and answers
What time zone is Montana in?
Montana is in the Mountain Time Zone.
Do Billings and Missoula have the same time?
Yes. Their official clocks agree throughout the year.
Why might visible sunrise be later than the listed time?
The standard calculation assumes a conventional horizon, while mountains, trees, buildings, and weather can block the actual view.

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