Does Arizona Observe Daylight Saving Time or Stay on Standard Time Year-Round?

Learn why Arizona stays on Mountain Standard Time year-round and the exception of the Navajo Nation's Daylight Saving Time observance.

57 views

Arizona does not observe Daylight Saving Time, staying on Mountain Standard Time (MST) year-round.** The exception is the Navajo Nation, located in northeastern Arizona, which does observe Daylight Saving Time.

FAQs & Answers

  1. Why doesn’t Arizona observe Daylight Saving Time? Arizona remains on Mountain Standard Time year-round to avoid the hotter temperatures during extended daylight evenings, resulting in less energy consumption.
  2. Does any part of Arizona observe Daylight Saving Time? Yes, the Navajo Nation in northeastern Arizona does observe Daylight Saving Time, unlike the rest of the state.
  3. What time zone is Arizona in during winter and summer? Arizona stays in the Mountain Standard Time (MST) zone year-round, except the Navajo Nation which switches to Mountain Daylight Time (MDT) during DST.

Watch More

If you found this explanation about Arizona's time observance helpful, check out our related content on time zone differences across U.S. states and how Daylight Saving Time impacts various regions.

  1. What Time Zone is Arizona in? Understanding MST and GMT-7 Explore Arizona's time zone - primarily MST and its year-round GMT-7 status, with exceptions within the Navajo Nation.