You can spot how the logic spreads beyond the military. Hospitals, emergency services, airlines, and broadcasters use the 24-hour clock because their work also punishes ambiguity. If a nurse writes ...

Do clocks fall back for an extra hour of sleep this weekend? What to know about the time change and when 2025 daylight saving ...

When do clocks fall back for an extra hour of sleep? Here's what to know about the time change and 2025 daylight saving time ...

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 ...

Daylight saving time ends across most of the United States on the first Sunday of November, according to Time and Date, an ...

Shorter days and (slightly) cooler temperatures mean fall is around the corner. With the change of seasons comes another milestone – the end of daylight saving time. The official end of summer is Sept ...

Different time formats might seem baffling at first, but the 12-hour and 24-hour clocks each tell fascinating stories about how we've measured our days throughout history. The familiar 12-hour system, ...

Correction & clarification: A prior version of this story misstated the origin of the U.S. law on daylight saving time. Many countries around the world and most of the U.S. still turn the clocks ...

Sunsets are earlier, the nights getting longer and the leaves are turning — signs that the clocks are about to fall back for the time change. Here's what to know about the end of daylight saving time ...