- To all of you in Arizona, we have heard you and Arizona’s time zone has been added!
And for those of you curious, yes the Arizona time zone is the Mountain Standard Time (MST) zone. However Arizona does not observe Daylight Saving Time (mid-March through early November). During Daylight Saving Time (DST) most of Arizona is at the same time as California (Pacific Daylight Time or PDT).
The only exception in Arizona is the Navajo Nation, in northeastern Arizona, which does observe Daylight Saving Time.