Mesa, United States · UTC-7
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Mesa is Arizona’s third-largest city and one of the fastest-growing cities in the United States, sitting in the Phoenix metropolitan area. It runs on Mountain Standard Time, UTC-7, year-round. Arizona does not observe daylight saving time.
Arizona’s case against daylight saving
The reasoning is practical and climatic. Arizona summers are brutally hot. When California and Nevada spring forward in March, Arizona stays put. The result is that for half the year, Mesa runs on the same time as California (Pacific Daylight Time is also UTC-7). For the other half, it’s one hour ahead. Arizona residents and businesses keep a mental calendar of which offset applies on any given day.
The exception: the Navajo Nation, which occupies a large portion of northeastern Arizona, does observe DST, creating an island of changing time within a fixed-clock state.
Mesa’s desert heat means the social schedule shifts seasonally anyway. Outdoor activity happens at dawn and dusk, not midday in July. The absence of DST means the long summer days extend deep into the evening by the clock, with sunset after 8pm.
Phoenix to the west shares this timezone. 9am in Mesa is 4pm in London during European winter, and 5pm during European summer.
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Questions about time in Mesa
- What timezone is Mesa in?
- Mesa uses the IANA timezone
America/Phoenix. The UTC offset is always UTC-7 - this timezone does not observe daylight saving time. - Does Mesa observe daylight saving time?
- No. Mesa does not observe daylight saving time. The UTC offset remains UTC-7 all year round.
- What is the current UTC offset for Mesa?
- Mesa is currently at UTC-7.
- What is the time difference between Mesa and New York?
- Mesa is currently 3 hours behind New York.
- What is the time difference between Mesa and London?
- Mesa is currently 8 hours behind London.
- What is the time difference between Mesa and Tokyo?
- Mesa is currently 16 hours behind Tokyo.
- What is the IANA timezone name for Mesa?
- The IANA timezone database identifier for Mesa is
America/Phoenix. Use this string in programming languages and APIs: JavaScript (`new Intl.DateTimeFormat('en-US', { timeZone: 'America/Phoenix' })`), Python (`pytz.timezone('America/Phoenix')`), or any IANA-compatible library.