Daylight saving time ends on November 2 and starts again in early March 2026. Here's why we change our clocks after fall starts.

DALLAS — Once again, most Americans had their clocks set forward by one hour this weekend, losing perhaps a bit of sleep but gaining more glorious sunlight in the evenings as the days warm into ...

DALLAS — Once again, most Americans had their clocks set forward by one hour this weekend, losing perhaps a bit of sleep but gaining more glorious sunlight in the evenings as the days warm into ...

Two states, Arizona and Hawaii, choose not to observe daylight saving time. Prepare to set your clocks as the country "springs forward" on Sunday. The clocks fall back again on Sunday, Nov. 2.

Wake up early to witness the year's most dazzling planetary pairing as Venus and Jupiter close in for a celestial rendezvous.

For more about Holly's Optical Atomic Strontium Ion Clock, check out the OASIC project on NASA's website.- For more about the Longitude Problem, check out Dava Sobel's book, Longitude.