Daylight Saving Time rule and exception
Mountain Standard Time
Mountain Standard Time (MST) = GMT-7
What time zone is Arizona is?
Does Arizona observe Daylight Saving Time?
Arizona does not observe Daylight Savings Time (DST) and remains on Mountain Standard Time all year, with the exception of the Navajo Nation >, which uses DST.
The effect of this is that Arizona is on the same time zone as Mountain Time states during the winter months. In the summer months is on the same time as Pacific Daylight Time states
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