As the U.S. stock market moves closer to trading “around the clock,” we need to consider when a trading day ends and the next ...

Your Circadian Rhythm is your body’s internal 24-hour clock that not only controls your sleep, but also other important parts ...

Military time, also known as the 24-hour clock, is a system the military uses to eliminate confusion between morning and afternoon hours, since the armed forces are in operation around the clock.

Countless students arrive at school sleep-deprived. Health experts say daylight saving time adds to the problem.

“I’m not surprised Nasdaq is getting into [24-hour trading]; I’m surprised they’re doing ... Outside of stocks, many ...

Nasdaq Inc. announced on March 7 that it's seeking permission from regulators to expand trading hours on the biggest stock ...