Overview
- Daylight saving time ends at 2 a.m. Sunday, Nov. 2, when most Americans set clocks back one hour and return to standard time with earlier sunsets.
- An effort to fast‑track the Sunshine Protection Act to make daylight saving time permanent was blocked by Sen. Tom Cotton this week, so federal rules remain unchanged.
- Nineteen states have passed laws to adopt year‑round daylight saving time but cannot implement them without Congressional approval, while Arizona and Hawaii stay on standard time all year.
- Recent Stanford/PNAS research and guidance from sleep and medical groups indicate permanent standard time best aligns with circadian health, and the biannual switch carries short‑term risks like more crashes and heart events.
- Polling shows strong opposition to changing clocks twice a year, with preferences split over which single time to keep, and experts suggest easing the transition by shifting bedtimes gradually and seeking morning light.