What Is Arizona's Time Zone and Daylight Saving Time Policy?

Learn about Arizona's unique time zone practices, including its year-round Mountain Standard Time and exception for the Navajo Nation's DST observance.

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Arizona follows Mountain Standard Time (MST) year-round. It does not observe Daylight Saving Time, except for the Navajo Nation, which follows DST. This means Arizona is aligned with Pacific Daylight Time (PDT) during the summer months.

FAQs & Answers

  1. Does Arizona observe daylight saving time? Arizona does not observe daylight saving time and remains on Mountain Standard Time year-round, except for the Navajo Nation which follows DST.
  2. What time zone is Arizona in during the summer? Although Arizona remains on Mountain Standard Time, it effectively aligns with Pacific Daylight Time during summer months due to not observing DST.
  3. Why does the Navajo Nation observe daylight saving time in Arizona? The Navajo Nation observes daylight saving time to maintain consistency with its territory that extends into states that follow DST, unlike the rest of Arizona.

Watch More

For more insights on U.S. time zones and daylight saving practices, check out our guides on how different states handle time changes and why some regions opt out of DST.

  1. How Does Arizona Time Work Without Daylight Saving Time? Learn why Arizona mostly stays on Mountain Standard Time year-round and how the Navajo Nation observes Daylight Saving Time.
  2. Does Arizona Have Its Own Time Zone or Follow Mountain Standard Time? Discover if Arizona has its own time zone and learn how it observes Mountain Standard Time and Daylight Saving Time exceptions.
  3. Why Does Arizona Follow Mountain Standard Time Year-Round? Learn why Arizona stays on Mountain Standard Time all year and how this affects its time alignment with the Pacific Time Zone.
  4. Why Is Arizona an Hour Behind Mountain Standard Time (MST)? Learn why Arizona does not observe Daylight Saving Time and how it affects its time zone alignment with MST and PST.
  5. 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.
  6. Why Does Arizona Have a Different Time Zone? Explanation of Arizona’s Time Difference Discover why Arizona’s time differs from other states due to its unique non-observance of Daylight Saving Time, except for the Navajo Nation.
  7. Is Arizona on MST or PST During Daylight Saving Time? Learn why Arizona stays on Mountain Standard Time (MST) year-round and how the Navajo Nation observes Daylight Saving Time.
  8. Why Doesn't Arizona Observe Daylight Saving Time? Learn why Arizona stays on Mountain Standard Time year-round and avoids the bi-annual Daylight Saving Time changes.
  9. What Time Zone Is Arizona In? Understanding MST and Navajo Nation Exceptions Learn about Arizona's time zone, its year-round use of MST, and the Navajo Nation's daylight saving time observance.
  10. 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.