Key Highlights
- Daylight saving time ends on Sunday, November 2, 2025, at 2 a.m., marking the “fall back” hour.
- Americans gain one hour of sleep when clocks move back an hour as daylight saving time comes to an end.
- Experts recommend gradual adjustments for children and adults alike to ease into the new schedule.
- The potential health risks associated with daylight saving time changes include heart attacks, strokes, and disrupted sleep patterns.
Understanding Daylight Saving Time in 2025: When to ‘Fall Back’
In the upcoming months, as we prepare for the change of seasons, Americans will once again experience a shift in their daily routines due to daylight saving time. The “fall back” hour occurs on Sunday, November 2, 2025, at 2 a.m., when clocks across the United States will move back one hour.
Health Impacts and Adjustments
The transition from daylight saving time to standard time can disrupt sleep patterns and affect overall health. Dr. Darien Sutton, an ABC News Medical Correspondent, explains that this change typically results in a temporary increase in heart attacks and strokes due to the disruption of circadian rhythms.
According to research published in the Journal of Clinical Sleep Medicine, the shift is associated with increased risk factors such as abnormal heart rhythms, mood disturbances, and even suicide.
Experts recommend making gradual adjustments before the time change to help mitigate these effects. Dr. Sutton advises shifting bedtimes and wake-up times earlier by about 10 to 15 minutes each day leading up to the actual time change. This approach helps the body adapt more smoothly without experiencing significant disruption in sleep patterns.
Historical Context of Daylight Saving Time
The implementation of daylight saving time dates back to World War I, when the U.S. first established it through the Standard Time Act of 1918. Over the years, various amendments and legislation have shaped its current form. In January 2025, the Sunshine Protection Act was reintroduced in both the House of Representatives and the Senate, proposing to make daylight saving time permanent across the United States.
However, not all states participate in this practice.
Hawaii and most of Arizona are exempt from observing daylight saving time, as are certain U.S. territories like American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands.
Impact on Children’s Sleep Patterns
Younger children may struggle more with adjusting to the new schedule due to their developing circadian rhythms. Ericka Souter, a parenting expert, suggests shifting everything from meal times to nap schedules earlier by 10 to 15 minutes each day before the time change.
“To help your child’s body adjust, don’t just move bedtime,” advises Dr. Sutton. “Start moving everything – meals, naps, and wake times – earlier by about 10 to 15 minutes each day leading up to the time change.” This gradual approach can make the transition smoother for both children and adults.
Experts recommend keeping bedroom curtains drawn or lights dimmed until it’s time for a child to get up in the morning, reducing exposure to early light. This practice helps preserve natural wake-up times and reduces the risk of premature awakening due to early sunrise.
Conclusion
The “fall back” hour on November 2, 2025, marks an essential reminder for Americans to adjust their clocks and routines accordingly. While this shift brings a temporary gain in sleep, it also poses potential health risks that can be mitigated through careful planning and gradual adjustments. As the debate over whether daylight saving time should remain or become permanent continues, understanding its effects on our bodies remains crucial.
