The Sunshine Protection Act, legislation designed to establish daylight saving time permanently across most of the United States, has gained support from lawmakers in both major political parties. The proposal passed the House of Representatives in July 2026, but its progress in the Senate remains uncertain. President Donald Trump has repeatedly urged Congress to approve the measure, arguing that Americans should no longer have to adjust their clocks twice a year.
The legislation would make daylight saving time the year-round standard, allowing the sun to set later according to local clock time during the winter months. States would retain the option to remain on standard time throughout the year, provided they chose to do so before the legislation took effect. Under existing federal rules, states can opt out of daylight saving time, but they cannot independently adopt permanent daylight saving time.
Public opinion suggests considerable dissatisfaction with the current system. An Associated Press-NORC poll conducted in 2025 found that 47% of respondents opposed changing clocks twice a year, compared with 12% who supported the practice. On the question of which time system should operate throughout the year, 56% favoured permanent daylight saving time, while 42% preferred permanent standard time.
Supporters argue that eliminating seasonal clock changes would simplify schedules and provide more daylight during evening hours. They contend that later sunsets could encourage outdoor activities, give families more opportunities to spend time together and reduce the disruption associated with adjusting sleep and work routines twice annually.
Florida Republican Senator Rick Scott has been among the prominent supporters of the proposal. Democratic Senator Patty Murray and Senator Ed Markey have also expressed support, presenting the issue as a practical reform with potential benefits for families, communities and economic activity.
However, opposition in the Senate centres on the consequences of darker winter mornings. Republican Senator Tom Cotton of Arkansas has emerged as one of the legislation’s most vocal critics, arguing that permanent daylight saving time could leave children travelling to school before sunrise. Senator Roger Wicker of Mississippi has also raised safety concerns, particularly for people in northern and rural communities who begin their journeys early in the morning.
The effects would vary across the country because sunrise times differ significantly within time zones. In some locations, permanent daylight saving time could push winter sunrise well into the morning commute. This creates a difficult trade-off between additional evening daylight and the availability of natural light at the start of the day.
Health considerations further complicate the debate. Some sleep researchers and medical organisations favour permanent standard time, arguing that it aligns more closely with the body's circadian rhythms. They contend that greater consistency in morning light exposure may support sleep patterns and overall health. Supporters of permanent daylight saving time, meanwhile, emphasise the inconvenience of seasonal clock changes and the benefits of later sunsets.
The United States has attempted permanent daylight saving time before. In 1974, the country adopted the system during an energy-related initiative, but public dissatisfaction contributed to its repeal only months later. That experience continues to influence concerns about whether a nationwide change would work equally well across different regions.
The current legislative impasse reflects these competing priorities. Senate Majority Leader John Thune said in October that lawmakers had not reached a consensus and that there was no clear path forward for the bill. Despite bipartisan support and public frustration with clock changes, disagreements over winter daylight remain a substantial obstacle.
The future of the Sunshine Protection Act will depend on whether lawmakers can reconcile these concerns and agree on a system that serves communities across the country. Until then, Americans are expected to continue observing the existing seasonal schedule, illustrating how even a familiar change to the clock can become a complex national policy debate.
