6 days ago · March 9, 2025 starts Daylight Saving Time for most of the United States. But unlike almost everywhere else, Arizona doesn't observe DST and hasn't done so for about the last 40 years.

The state capital Phoenix and most of Arizona added 1 hour to Mountain Standard Time (MST) to what today is known as Mountain Daylight Time (MDT). When the War Time period ended, most of Arizona, including Phoenix, returned to MST.

5 days ago · The rest of the country, including parts of the Navajo Nation within Arizona, observes daylight saving time. On Sunday at 2 a.m., clocks moved forward one hour to 3 a.m., a change that will remain ...

5 days ago · Sunday, March 9, 2025, 3:00:00 am local daylight time instead. Sunrise and sunset will be about 1 hour later on Mar 9, 2025 than the day before. There will be more light in the evening and less light in the morning.

Mar 4, 2025 · But people in Arizona have a different daylight saving time phrase: "3 hours in the summer, 2 in the winter." It's very similar to “longer days in the summer, shorter days in the...

5 days ago · DST started when “war time” was established in the U.S. in 1918. The concept was supposed to help save fuel during World War I. While the rest of the country agreed, Maricopa County ...

Mar 5, 2025 · Many states will observe daylight saving time on March 9, but Arizona will not. Arizona has opted out of observing it since 1967.

Sep 22, 2024 · The official start of fall on Sept. 22 signals the approaching end of daylight saving time, when most clocks will "fall back" an hour. Arizona, however, has its quirks. Here's what to know.

Feb 13, 2025 · Arizona, including Tucson, went on Daylight Saving Time on April 30,1967 for the first time since World War II. Daylight Saving Time was rejected by the Arizona legislature in 1968. Arizona was exempted from the time change during the energy crisis in …

Dec 14, 2024 · By staying on standard time year-round, Arizona avoids extending daylight hours into the summer evenings when temperatures peak. This is intended to help reduce energy consumption for air...