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What time is it in Jefferson County, Montana, United States

This page shows the time as it is now in Jefferson County, Montana, United States, in the America/Denver time zone (−6).

Jefferson County, United States

12:39:57 AM

Saturday, 17 October 2026

UTC−6 · America/Denver

Local time in Jefferson County

UTC−6 · daylight saving time is active

Local time in Jefferson County, Montana.

The sun today

Sunrise 7:49 AM Solar noon 1:15 PM Sunset 6:40 PM Daylight 10 h 51 min Night 13 h 09 min Civil twilight 7:19 AM – 7:11 PM

Weather in Jefferson County right now

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Weather data by Open-Meteo, updated every 30 minutes.

Jefferson County and its neighbours

Jefferson County at 46.1485, -112.0940 with the nearest towns within 15.2 km · open in OpenStreetMap

Postal codes

59632 Boulder — 9.3 km away

Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.

Jefferson County in numbers

Coordinates: 46.1485, -112.0940
Region: Montana
Country: United States, North America
Capital: Washington, D.C. — 2958 km away
Same name: 24 more places in the world share this name

Largest cities in Montana

Billings 117 116
Missoula 71 022
Great Falls 59 638
Bozeman 43 405
Butte 34 190
Helena 32 091

Other places named Jefferson County

Jefferson County Alabama, United States
Jefferson County Arkansas, United States
Jefferson County Colorado, United States
Jefferson County Florida, United States
Jefferson County Georgia, United States

Same time zone — America/Denver

Denver United States
El Paso United States

Nearby places

Big Foot (historical) — 5.1 km
Sunset Trailer Court — 9.8 km
Mountain Valley Trailer Court — 9.9 km
Boulder — 10.0 km
Blazing Place — 12.7 km
Rieder — 13.3 km

About the time in Jefferson County

Jefferson County has 1 postal code in total.

The time standard for Jefferson County is America/Denver at UTC−6. Daylight saving time applies here: Yes.

The day begins at Jefferson County with sunrise at 7:49 AM and ends with sunset at 6:40 PM. Daylight totals 10 h 51 min.

Jefferson County, Big Foot (historical) and Sunset Trailer Court all run on one and the same time.

Questions and answers

What time zone is used by Jefferson County?: Jefferson County uses the America/Denver time zone, which has an offset of −6.
Is a seasonal hour added to the clock in Jefferson County?: Yes.
What is the local sunset time in Jefferson County?: Local sunset is 6:40 PM.