Arizona and Daylight Saving Time
Arizona does not observe daylight saving time. Most of the state stays on Mountain Standard Time year-round, so clocks do not spring forward or fall back with the rest of the country.
When Does Arizona Leave the Time Change
Arizona effectively "leaves" daylight saving time each spring when other states move clocks forward. The state remains on standard time during summer months, aligning with Pacific Daylight Time for part of the year.
Exceptions Within Arizona
The Navajo Nation in northeastern Arizona does observe daylight saving time, following the same schedule as other U.S. regions. The Hopi Reservation, which is surrounded by the Navajo Nation, does not observe daylight saving time, creating a complex time zone patchwork.
For more details on U.S. time zone rules, see the timeanddate.com Arizona time zone page.
