- Most of the United States will “fall back” on Sunday, Nov. 1 at 2 a.m. (ET) as daylight saving time ends, meaning Americans will get an extra hour of sleep after Halloween.
- The clock change is a hotly contested issue in the states, though legislative efforts to halt it for good have failed for years.
- A study from Stanford University found that switching clocks back and forth twice a year is the worst option for human health, supporting long-standing calls from major medical groups to adopt permanent standard time.
- Researchers say standard time aligns more naturally with human biology and circadian rhythms by providing essential morning sunlight, which resets the internal clock and synchronizes key organ systems.
- Even a single hour shift can disrupt sleep schedules and worsen chronic sleep deprivation, with spring changes specifically linked to spikes in car crashes, heart attacks and mood disruptions.
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