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Spring Forward What To Know About Daylight Saving Time 2025

Alistair Lowe
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spring forward what to know about daylight saving time 2025

The second weekend of March has arrived, and you know what that means: It's time to spring ahead for the start of daylight saving. Daylight saving happens in most U.S. states as an effort to maximize sunlight throughout warm-weather months. This year, clocks will move ahead one hour on Sunday, March 9. There has long been deliberations, however, about if daylight saving still makes sense and whether the U.S. should eliminate it.

Below, read more about that debate — plus, what time daylight saving starts, which states observe daylight saving and how daylight saving time came to be. When does daylight saving time begin in 2025? Every year, daylight saving begins the second Sunday in March and ends the first Sunday in November, according to the National Institute of Standards and Technology. In 2025, those dates are Sunday, March 9, and Sunday, Nov. 2. What time does daylight saving begin?

People living in areas observing daylight saving should move their clocks at the 2 a.m. hour, according to the NIST. So in March, 2 a.m. becomes 3 a.m., and in November, 2 a.m. becomes 1 a.m. How long does daylight saving time last? Daylight saving requires folks to change their clocks bi-annually, in March and November. In total, daylight saving time lasts about eight months. In the spring, the clocks move forward, and in the fall, clocks move back. (As the saying goes, "spring forward, fall back.") Which U.S.

states don’t observe daylight saving time? According to the U.S. Department of Transportation, which regulates time zones and daylight saving time, all but two of U.S. states don't observe daylight saving: Hawaii and most of Arizona. (The Navajo Indian Reservation does observe.) These U.S. territories also don't observe: American Samoa, Guam, Puerto Rico, Northern Mariana Islands and the Virgin Islands. What is daylight saving time?

Daylight saving time first went into effect in 1918 during World War I to allow for more daylight hours that will save on energy costs, according to the U.S. Department of Defense. It was only in effect for about a year and a half, though. Then, in 1942 during World War II, daylight saving returned when energy became a concern again. It went away once more at the war's end in 1945. There were no rules around daylight saving for the next 20 years, which caused plenty of confusion.

In 1966, Congress made daylight saving official — but the period of time was shorter, beginning the last Sunday in April and ending the last Sunday in October. President George W. Bush in 2005 extended daylight saving time to the length it is now: the second Sunday in March to the first Sunday in November. Where does the push to end daylight saving stand?

Whether daylight saving time is necessary has long been a conversation in the U.S., as that hour change can impact a person's body and routines (not to mention babies and children who can take more time to adjust.) President Donald Trump wrote on Truth Social in December that the Republican party will "use its best effort" to eliminate daylight saving. On March 8, Trump told reporters in the Oval Office that daylight saving is "is a 50-50 issue." "It's hard to get excited about," he added.

"I assume people want light earlier, but some don't want to get dark. It't something I can do. Some like it one way. It's very even."

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