Time Zones in Arizona, United States

Time Zone Currently Being Used in Arizona

How Many AZ Time Zones Are There?

Most of Arizona observes Mountain Standard Time (MST) all year. However, because the Navajo Nation observes Daylight Saving Time (DST), the corresponding DST designation, Mountain Daylight Time (MDT) is also listed here.

There is a common misconception that Arizona is on Pacific Daylight Time (PDT) during the summer and on Mountain Standard Time (MST) during the winter. Because MST and PDT have the same UTC offset of minus 7 hours (UTC-7), Arizona has the same local time as neighboring states California and Nevada during the summer season.

Mountain Time in Arizona

The time zones in the contiguous United States are often referred to by their generic name, without making a difference between standard time and DST designations. For example, Mountain Time (MT) refers to Mountain Standard Time (MST) or Mountain Daylight Time (MDT), depending on which is currently in use.

Note: Local time in these time zones changes when Daylight Saving Time begins and ends.

Time Zone Not Currently Being Observed in Arizona

The above time zone is used during other parts of the year. It will become active again after the next clock change as Daylight Saving Time begins or ends.

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Arizona

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Wednesday, December 11, 2024