As autumn progresses, many Americans are preparing for the end of daylight saving time. This year, clocks will "fall back" one hour on Sunday, November 2, 2025, at 2 a.m. This change means that people will gain an extra hour of sleep, as the time will revert to 1 a.m. Daylight saving time, which began in the U.S. in 1918, was established to make better use of daylight and conserve energy. The practice involves moving clocks forward one hour in March and back one hour in November. The Uniform Time Act of 1966 standardized the start and end dates for daylight saving time across the country. While many welcome the extra hour of rest, the time change can disrupt natural sleep patterns. Experts suggest that the biannual clock shift can lead to health issues, including increased risks of stroke and obesity. A study from Stanford Medicine indicated that the biannual clock change is detrimental to circadian rhythms, which regulate sleep-wake cycles and other bodily functions. "Changing clocks twice a year disrupts circadian rhythms, leading to higher rates of stroke and obesity," said Dr. Jamie Zeitzer, a researcher involved in the study. The findings suggest that maintaining a permanent standard time could prevent an estimated 300,000 strokes and 2.6 million cases of obesity annually. Parents may also need to help children adjust to the time change. Parenting expert Ericka Souter recommends gradually shifting children's schedules in the days leading up to the change. "Start moving everything – meals, naps, and wake times – earlier by about 10 to 15 minutes each day leading up to the time change," Souter advised. Currently, Hawaii and most of Arizona do not observe daylight saving time. Additionally, five U.S. territories, including Puerto Rico and Guam, also do not participate in the time change. In January 2025, the Sunshine Protection Act was reintroduced in Congress, aiming to make daylight saving time permanent across the U.S. However, the legislation has not yet been voted on. As the end of daylight saving time approaches, many are reminded of the potential health impacts and the ongoing debate about the necessity of this time change. The next opportunity to adjust clocks will be in March 2026, when daylight saving time begins again on the second Sunday of the month.