Time may move forward and backward, according to new quantum physics research. Equations remain unchanged when time is ...

Atomic clocks are more accurate than those used to define the second, suggesting the definition might need to change ...

A new study reveals that the body’s internal clock plays a key role in eating behavior, influencing when and how much adolescents eat.

W e’ve all experienced the shift to and from daylight saving time—whether we like it or not. In decades past, we’d wake up to ...

Tired of driving home from a hard day's work in darkness? You're in luck because daylight saving time is slated to start next month.

Having systems in place that keep me on task are essential for my productivity, and I have an arsenal of them for my ...

Daylight saving time occurs between March and November, when most Americans adjust their clocks ahead by one hour.

Scientists have taken a bold step toward understanding dark matter, the invisible force shaping the cosmos. Using atomic ...

Abstract: High-performance atomic clocks provide the foundation for precise time measurement. Common high-performance atomic clocks in time-keeping laboratories include hydrogen masers and cesium ...

As convenient as it might be to use your phone as an alarm clock, standalone alarm clocks come with all kinds of features that can make waking up — or even going to sleep — a little less painful.

During testing, I woke up on time and felt refreshed every morning. This device is not only an effective sunrise alarm clock but also a great bedside lamp, with a great FM radio and sound quality.

Here’s a closer look at how the clock was created and how the time is determined. It’s a symbolic way of showing the public how close the Bulletin of Atomic Scientists believes the world is to ...