3 min
With Sunshine Protection Act Under Consideration, Villanova Sleep Expert Speaks to the Pros and Cons of Changing the Clocks
Twice a year, Americans are made to gain or lose one hour of sleep to accommodate an age-old custom of dubious origins. But that may soon change. On July 14, 2026, Democrats and Republicans in the U.S. House of Representatives joined together to approve the Sunshine Protection Act, a bill that would effectively eliminate seasonal clock adjustments and institute permanent daylight saving time. Currently, this legislation is stalled in the Senate, but pressure is steadily mounting for the act’s passage before clocks once again “fall back” at the beginning of November. Amid the push, many researchers who specialize in sleep science and medicine hope Congressional lawmakers continue biding their time—and time in general—and weigh a different approach to the nation’s wakeup call conundrum. “Both the general public and the medical and scientific communities seem to largely support eliminating the practice of changing the clocks twice a year,” says Elizabeth Pantesco, PhD, assistant professor of Psychological and Brain Sciences and head of the Sleep and Heart Health Lab at Villanova University. “However, while political and public opinion often seem to slightly favor permanent daylight saving time, the sleep medicine and circadian science communities generally support permanent standard time.” As Dr. Pantesco explains, this support largely stems from experts’ understanding of circadian health. Permanent standard time would produce earlier morning light and earlier evening darkness, which is generally considered more favorable for optimizing the body’s 24-hour internal rhythms, than permanent daylight saving time. “Under permanent daylight saving time, reduced morning light and increased evening light exposure could shift the circadian clock later, while work, school and other social schedules remain fixed,” says Dr. Pantesco. “This can result in more difficulty falling asleep at night while still needing to get up at the same time in the morning, increasing the likelihood of circadian misalignment, poorer-quality sleep and shorter sleep.” Based on research and historical evidence, the consequences of this restlessness could extend far beyond bleary eyes and midday yawns. While permanent daylight saving time has never been analyzed in controlled trials, the existing literature on sleep restriction and circadian misalignment indicates that the policy change could have significant health and safety ramifications over an extended period. “Circadian misalignment and insufficient sleep have been associated with increased risks for cardiovascular and metabolic disease, as well as depression and other psychiatric outcomes. Long-term circadian disruption, particularly in research on shift work, has also been linked with certain cancers. More immediate consequences can include daytime sleepiness, impaired attention, reduced productivity and an increased risk of errors and motor vehicle crashes.” Dr. Pantesco also notes the possibility of some drawbacks with permanent standard time, which would shift an hour of daylight from evening to morning during the months currently on daylight saving time. Among the resultant pitfalls are that it could limit “opportunities for outdoor and social activities after work, affect businesses that benefit from evening activity and potentially increase risks for certain types of crime and for evening pedestrian or cyclist accidents.” Still, while the communal and societal effects of a permanent standard time have yet to be fully understood, the health benefits are strongly supported by circadian biology. As the American Academy of Sleep Medicine (AASM) contends, its institution could eliminate the chronic sleep disruption caused by seasonal clock changes while creating a “natural synchrony [optimal] for health, mood, performance and safety.” Among U.S. lawmakers, there is a contingent that wholeheartedly agrees, working to enshrine permanent standard time through a Sunshine Protection Act alternative—the Sunshine for Our Kids Act. Whether they will be able to convince their Congressional cohorts of the benefits of permanently “springing forward” over permanently “falling back” remains to be seen, however. As with most things, only time will tell.





