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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.
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Generalized Time Zone in Arizona Time Zone Abbreviation & Name 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. 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. However, because the Navajo Nation observes Daylight Saving Time (DST), the corresponding DST designation, Mountain Daylight Time (MDT) is also listed here. Most of Arizona observes Mountain Standard Time (MST) all year.
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Time Zones Currently Being Used in Arizona Offset
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