Here’s what you’ll learn when you read this story: Our biological clock, or circadian rhythm, is immensely important to our health, and scientists are now unpacking the process’s secrets at the ...

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 ...

Researchers say the current protocol to both “fall back” and “spring forward” is the worst choice for our bodies.

Daylight saving time in 2025, when clocks change by an hour, has begun. Here's a look at when exactly we "spring forward" and how daylight saving time works. What time exactly does the time change for ...

The clock going back for winter is far less disruptive than the spring shift, which has been linked to spikes in heart attacks and traffic accidents. Every year, as clocks go back in October, millions ...