Mountain Time Zone in the United States

The Mountain Standard Time Zone, includes that part of the United States that is west of the boundary line between the central and mountain standard time zones (view) and east of the boundary line between the mountain and Pacific standard time zones (view).

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.

Current Local Time

Mountain Time Zone Map

The Current Time in
The Mountain Time Zone
is:

Friday
10/24/2014
12:47 PM
MDT


Mountain time zone map
 

Mountain Time Zone in the United States Time Details

Time Zone
Abbreviations

Mountain Standard Time - is abbreviated as MST
Mountain Daylight Time - is abbreviated as MDT

UTC - GMT
Offset

Mountain Time Zone is GMT/UTC - 7h during Standard Time
Mountain Time Zone is GMT/UTC - 6h during Daylight Saving Time

Daylight Saving
Time Usage

Daylight Saving Time is observed in the Mountain Time Zone throughout the United States except in the state of Arizona. Daylight saving time is observed in the Navajo Nation in northeastern Arizona.

Daylight Saving
Start Date

Mountain Time Zone starts Daylight Saving Time
Sunday March 9, 2014 at 2:00 AM local time.

Daylight Saving
End Date

Mountain Time Zone ends Daylight Saving Time
Sunday November 2, 2014 at 2:00 AM local time.

Time Zone Boundaries in the United States

CODE UNITED STATES TIME ZONE BOUNDARIES UTC OFFSET
AST ATLANTIC STANDARD TIME UTC - 4
EST EASTERN STANDARD TIME UTC - 5
CST CENTRAL STANDARD TIME UTC - 6
MST MOUNTAIN STANDARD TIME UTC - 7
PST PACIFIC STANDARD TIME UTC - 8
AKST ALASKA STANDARD TIME UTC - 9
HAST HAWAII-ALEUTIAN STANDARD TIME UTC - 10
WST SAMOA STANDARD TIME UTC - 11
CHST CHAMORRO STANDARD TIME UTC +10

Boundary Line Between Eastern and Central Zones
Boundary Line Between Central and Moutain Zones
Boundary Line Between Mountain and Pacific Zones

View Current Times in All United States Cities and Towns



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