Arizona Time is the Mountain Time Zone of the United
States of America (USA). Mountain Standard Time (MST) is 7 hours behind Greenwich
Mean Time (GMT-7).
Does Arizona observe Daylight Saving Time?
Arizona does not observe Daylight Savings Time (DST) and
remains on Mountain Standard Time all year.
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