is montana mountain time
The Mountain Time Zone includes the states of Arizona*, Colorado, part of Idaho, part of Kansas, Montana, part of Nebraska, New Mexico, part of North Dakota, part of Oregon, part of South Dakota, part of Texas, Utah, and Wyoming. Most of Arizona does not observe daylight saving time. The Navajo Indian Nation in northeastern Arizona does observe daylight saving time. Five states are in both the Mountain and Central Time Zones. Those are Kansas, Nebraska, North Dakota, South Dakota and Texas. View the boundary line between Central and Mountain Time Zones.