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.

In the spring, participating states turn clocks forward one hour on the second Sunday of March, causing us to spring forward and lose an hour of sleep. Clocks "fall back" on Sunday, Nov. 2. Daylight saving time ends on the first Sunday of November each year.

The short answer is "no." Hawaii and Arizona are the only two states that don't observe daylight saving time. The U.S. territories of American Samoa, Guam, the North Mariana Islands, Puerto Rico ...