US Time Zone Map

Montana Time Zone Map

Mountain Time, statewide.

Your time11:38 PMSAT, OCT 31UTC+5:30
Pacific timePacific11:08 AMSAT, OCT 31UTC-7
Mountain timeMountain12:08 PMSAT, OCT 31UTC-6
Central timeCentral1:08 PMSAT, OCT 31UTC-5
Eastern timeEastern2:08 PMSAT, OCT 31UTC-4
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Time zones in Montana

ZoneIANAStandardDaylightAbbr
Mountain TimeAmerica/DenverUTC−7UTC−6MST / MDT

Montana is Mountain Time statewide (MST/MDT, UTC−7 in winter, UTC−6 in summer), with no Central areas; Great Falls, Billings, and Missoula all follow the same clock.

Crossing the state line

Montana’s western border with the Idaho Panhandle is also a time-zone line: Coeur d’Alene and the rest of northern Idaho are on Pacific Time, an hour behind Missoula. To the east, northwestern North Dakota (Williston) is on Central Time, while southwestern North Dakota and western South Dakota keep Mountain Time.

Frequently asked questions

Which zone does Montana follow?

Montana is Mountain Time, statewide.

Is Montana in a single time zone?

Yes — Montana is wholly inside Mountain Time.

What time zone is Great Falls in?

Great Falls is on Mountain Time (MST / MDT — UTC−7 in winter, UTC−6 in summer, IANA zone America/Denver).

Sources: zone boundaries from the U.S. Department of Transportation’s time zone regulations (49 CFR Part 71); offsets and daylight saving rules from the IANA time zone database. See Data Sources for how this site uses them.