Some bodily activities, sleeping, for instance, mostly occur once every 24 hours; they follow a circadian rhythm. Other bodily functions, such as body temperature, cognitive performance and blood ...

Armies started using the 24-hour method of timekeeping as standard military time because, much like police, fire, and medical departments, every branch of the armed services is in continuous operation ...

A seemingly broken clock, though non-functional, accurately displays the correct time twice daily due to the 12-hour cycle. This familiar adage offers a profound lesson: accidental correctness doesn't ...

The 24 Hours exhibition at Milan design week features 24 weird and wonderful clocks, all by different designers. We look at seven of the most imaginative examples. On show at Riviera, 24 Hours was ...