Republican Representative Vern Buchanan of Florida, who introduced the bill in January 2025, said on Tuesday that clock changes disrupt schedules “for no good reason”.

Now that the House has passed the legislation, the Senate could soon take up its version of the bill. However, its future there is uncertain.

“We’ll see what happens when it gets here,” Senator John Barrasso, the number-two Republican whose party holds a slim majority in the upper chamber, said on Tuesday.

Florida Republican Senator Rick Scott introduced an identical piece of legislation, also called the Sunshine Protection Act, in January 2025.

Since World War One, the US has set its clocks forward during the summer to have more daylight in the afternoon and to conserve electricity. The time-change is known as Daylight Saving Time (DST). Clocks roll back in the autumn each year to then follow standard time.

DST, which also helped conserve fuel during the World War One, was unpopular with farmers and was repealed after the war. It returned during World War Two, and legislation standardising clock-changing across the country passed in 1966, although some states, including Hawaii and Arizona, and US territories Puerto Rico and the Virgin Islands, have opted out.