On March 9, most people in the U.S. will set their clocks forward an hour, thanks to the start of Daylight Saving Time. But if President Donald Trump acts on what he’s said about the practice, Daylight Saving Time as we know it could change.

Daylight Saving Time has long been controversial—most countries don’t participate in it, and many Americans have said they want to stop changing the clocks twice a year. Trump has expressed support for ending the practice, but recent efforts to do so have stalled, and only two states—Hawaii and most of Arizona—don’t participate in Daylight Saving Time.

Here’s what Trump has said about Daylight Saving Time, and what changes could potentially be on the horizon.

Read More: When Do the Clocks Move Forward in the U.S.? Your 2025 Guide to Daylight Saving Time

What has Trump said so far about Daylight Saving Time?
On Dec. 13, 2024, Trump posted on his social media site, Truth Social, “The Republican Party will use its best efforts to eliminate Daylight Saving Time, which has a small but strong constituency, but shouldn’t! Daylight Saving Time is inconvenient, and very costly to our Nation.”

But more than a month into his presidency, Trump has yet to make any moves on the issue since his Truth Social post, and experts are a little unsure as to what changes could be coming.

David Prerau, author of Seize the Daylight: The Curious and Contentious Story of Daylight Saving Time and an expert on the topic, says there are three options. The first is to keep the existing system of changing the clocks twice a year; currently, most of America sets the clock forward an hour starting in March for Daylight Saving Time, and sets the clock back an hour starting in November for Standard Time. The second option is to make Daylight Saving Time permanent, and the third is to make Standard Time permanent.