Arizona does not observe Daylight Saving Time. As a result, while most of the United States will set their clocks back one hour on the last Sunday of October, NAPM headquarters will remain on Mountain Standard Time, as it does year-round. NAPM office hours are 7:30 a.m. to 4:30 p.m. MST. Those of you in the Midwestern and Eastern United States will be one to two hours ahead of Arizona, while those of you on the West Coast will be one hour behind.
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