Daylight saving time 2025: Why do we spring forward and is it ending? What to know.
Most people in the U.S. will soon face the first the twice-annual hourly disruptions as daylight saving time will sweep into effect in under a week.
The practice of springing the clocks ahead an hour started in 1918 as a World War I era measure but was repudiated in 1919 after farmers, a group commonly cited as a reason for the practice, rejected it.
“The sun, not the clock, dictated farmers’ schedules, so daylight saving was very disruptive,” according to History.com. “Farmers had to wait an extra hour for dew to evaporate to harvest hay, hired hands worked less since they still left at the same time for dinner and cows weren’t ready to be milked an hour earlier to meet shipping schedules.”
Daylight savings was reimplemented when time zones in the nation were standardized with the Uniform Time Act in 1966.
Here’s what you need to know about the start of daylight saving time in 2025.
Daylight saving time begins on Sunday, March 9 at 2 a.m. local time.
Daylight saving time is the time between March and November when most Americans adjust their clocks ahead by one hour.
We lose an hour in March (as opposed to gaining an hour in the fall) to make for more daylight in the summer evenings. In the Northern Hemisphere, the vernal, or spring equinox, is on March 20, marking the start of the spring season.
Daylight saving time ends on Sunday, Nov. 2.
Hawaii and most of Arizona do not observe daylight saving time. Because of its desert climate, Arizona doesn’t follow daylight saving time (with the exception of the Navajo Nation). After most of the U.S. adopted the Uniform Time Act, the state figured that there wasn’t a good reason to adjust clocks to make sunset occur an hour later during the hottest months of the year.
President Donald Trump declared in December that “the Republican Party will use its best efforts to eliminate daylight saving time,” on Truth Social, the social media platform he owns.
The change would require an act of Congress, which has not seen a major push on the issue.
Bills to switch to daylight saving time as the national year-round standard in both houses of Congress have languished in committee after being introduced in January.
Trump has also not issued any executive orders, a favored method in his second term, on the issue.
Contributing: Alexis Simmerman, Jana Hayes, The Oklahoman, Emily DeLetter, Jennifer Sangalang, USA TODAY Network.
When does daylight saving time start?
What is daylight saving time?
When does daylight saving time end?
Who doesn’t observe daylight saving time?
Trump has made no moves so far to end daylight saving time
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