An atomic clock is a time keeping device.

Atomic Clock Ensemble in Space science project a clock updated by radio signals which is sometimes called an "atomic clock" Radio clock the clock as a measure for risk of catastrophic destruction Doomsday Clock NIST-F1, the United States' primary time and frequency standard

Music Atomic Clock, nickname of Zimmers Hole drummer Gene Hoglan Atomic Clock (musician), solo name of The Earlies keyboardist Giles Hatton

Albums Atomic Clock (Zion I album), 2010 Atomic Clock, an album by Gene Hoglan Atomic Clock, an album by Mark Helias, 2006 The Atomic Clock DVD, by Gene Hoglan

Songs "Atomic Clock", a song by Mark Helias "Atomic Clock", a song by Monster Magnet from Powertrip