Southern California gained an extra hour early Sunday when clocks rolled back and daylight saving time ended.
At 2 a.m., clocks returned to 1 a.m., restoring Pacific Standard Time and making Sunday a 25-hour day.
Most smartphones, computers and other internet-connected devices adjusted automatically. Traditional clocks and some vehicle and appliance clocks needed to be reset manually.
The time change will bring earlier sunrises and sunsets.
Daylight saving time is observed in most of the United States. Hawaii and most of Arizona remain on standard time throughout the year.
Fire officials also recommend using the time change to test smoke and carbon monoxide alarms. Replaceable batteries should be changed at least once a year, while alarms with sealed 10-year batteries should be replaced at the end of their service life.
California voters approved Proposition 7 in 2018, but the measure did not end the twice-yearly clock changes. It gave the Legislature authority, with a two-thirds vote, to change the state’s daylight saving time schedule if the change complies with federal law.
Under the federal Uniform Time Act, California could remain on standard time throughout the year. The state cannot independently adopt permanent daylight saving time. Such a change would require congressional action.
The House voted 308-117 July 14 to approve the Sunshine Protection Act, which would make daylight saving time permanent in states that currently observe it and end the spring and fall clock changes.
The measure, H.R. 139, was sent to the Senate Committee on Commerce, Science and Transportation, where it has stalled. A Senate companion measure, S. 29, also has not reached the Senate floor.
An earlier version of the Sunshine Protection Act passed the Senate by unanimous consent in 2022 but stalled in the House.
President Donald Trump has pressured senators to approve the current House bill.
“The United States Senate is letting the Daylight Saving Bill die, when a vast Majority of the Country want it,” Trump wrote Monday on Truth Social. He also said most people want more evening daylight and no longer want to change their clocks.
Trump’s position has shifted. In December 2024, he called for eliminating daylight saving time. He described the issue as “50-50” in March 2025 but later endorsed permanent daylight saving time.
Several senators oppose the House bill, arguing that permanent daylight saving time would leave children and commuters traveling before sunrise during the winter. The Senate is unlikely to vote on the measure before the end of the year.
The United States tried permanent daylight saving time in 1974 during an energy crisis, but Congress ended the experiment early amid complaints about dark winter mornings and children traveling to school before sunrise.
Absent a change in federal law, daylight saving time will return at 2 a.m. March 14, 2027, when clocks will move forward one hour.
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