Arizona does not observe daylight saving time, remaining on Mountain Standard Time year-round and avoiding the annual shift ...

When time adjusts an hour, setting your clock the night before allows you to wake up with the adjusted time, which prevents ...

Clocks had to "spring forward" one hour at 2 a.m. on Sunday, March 9, 2025, causing most people to lose an hour of sleep. We won't "fall back" to standard time again until Nov. 2, the first Sunday of ...

A poster from 1918 encourages citizens to write a postcard and lobby Congress in support of daylight saving time. Credit: ...

How we came to move the clock forward in the spring and then push it back in the fall is a tale that spans over more than a ...

Daylight saving time is forcing a lot of people to move their clocks forward by an hour. But people who live here won't have ...

Daylight Saving Time for 2025 begins in most parts of the United States at 2 a.m. on Sunday, with Americans losing an hour of sleep but gaining one of daylight.

Arizona doesn't participate in Daylight Saving Time, which means that we won't have to adjust our clocks or worry about our sleep.

The Navajo Nation in the northeast quarter of the state does observe daylight saving time. The Hopi Nation, fully surrounded ...

Thinking of calling friends or family in the East this weekend? Remember as of Sunday they are an extra hour ahead.

At 2 a.m., clocks in most parts of the United States will spring forward one hour as daylight saving time begins.