Arizona · AZ · Time & calendar
Arizona: Does the state observe daylight saving time?
No DST (standard time all year)
Arizona does not observe daylight saving time and stays on Mountain Standard Time all year.
Arizona law rejects daylight saving time and keeps the state on standard time, as federal law allows. The big exception is the Navajo Nation in northeastern Arizona, which does observe daylight saving time. The statute says the legislature can change this in the future.
What the law says
C. Notwithstanding any other provision of law to the contrary by the United States government relating to adoption of daylight saving time by all of the states, the state of Arizona elects to reject such time and elects to continue in force the terms of subsection A, relating to standard time in Arizona.
Sources
- A.R.S. 1-242 Official · azleg.gov
- NIST, Daylight Saving Time Official · nist.gov
Confirm with the state
- Agency
- Arizona State Legislature
- Phone
- 602-926-5998
- Website
- azleg.gov
How bordering states compare
- California Observes DSTCalifornia observes daylight saving time; a 2018 ballot measure lets lawmakers change that, but no change has been enacted.
- Colorado Observes DST, law to go year-roundColorado observes daylight saving time, but a 2022 law would make it year-round if Congress allows and four other Mountain states agree.
- Nevada Observes DSTNevada observes daylight saving time; bills to exempt the state or change its time have not become law.
- New Mexico Observes DSTNew Mexico observes daylight saving time and has not enacted a law to change it.
- Utah Observes DST, law to go year-roundUtah observes daylight saving time and has a 2020 law to stay on it all year if Congress and four western states act.