Long flights play tricks with your internal clock in ways that make you hazy, tired, and out of sync with the world. Your body believes it’s 3 AM when the sun is hot, or you’re awake at midnight, ...

Your circadian rhythm is a flexible internal clock that shifts with age and life changes, guiding your sleep, wake, and eating patterns. To realign your rhythm after disruptions like jet lag or late ...

When do clocks change? Daylight saving time ends at 2 a.m. on Sunday, Nov. 2, as clocks fall back one hour. It will mean most people in the U.S. and Canada gain an extra hour of sleep as standard time ...

A large England study found fewer NHS visits for sleep, heart, and mental health issues after clocks moved back in autumn.

Disruptions to our circadian clocks—the internal molecular timekeepers "ticking" in nearly every cell of our body throughout ...

Daylight saving time will end for 2025 in the first week of November, when clocks will "fall back" one hour. Congress has not yet passed legislation to make daylight saving time permanent, despite ...

Wondering when to change your clocks? Daylight Saving Time in Utah ends Sunday, Nov. 2. Find out if Utah will ever get rid of it and tips for adjusting to the new time. (zephyr_p, Adobe Stock) Get ...

The week after the autumn clock change is associated with a modest reduction in demand for NHS services for sleep disorders, cardiovascular disease ...

Time change! We set wall clocks behind 1 hour or "fall back" at 2 am ET Sunday, Nov. 2, 2025. DST starts (spring forward) March 8, 2026. New Year's Eve is Wednesday, Dec. 31, 2025. New Year's Day, a ...