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Researchers have demonstrated a new optical atomic clock that uses a single laser and doesn't require cryogenic temperatures.

Those mesmerizing blue and orange hues in the sky at the start and end of a sunny day might have an essential role in setting humans' internal clocks. A novel LED light that emits alternating ...

Questing for a truly constant “tick,” scientists have zoomed in on the atomic world, where the minuscule scales and ...

F OR THE discerning timekeeper, only an atomic clock will do. Whereas the best quartz timepieces will lose a millisecond every six weeks, an atomic clock might not lose a thousandth of one in a decade ...

A recent breakthrough has paved the way for timekeeping even more precise than the measurements performed by atomic clocks.

Summer is almost over and that means fall will be here soon. If you're looking forward to our clocks "falling back" to get an extra hour of sleep, here's when daylight saving time ends ...

This marks the return to standard time. When local time reaches 2 a.m., clocks will turn backward an hour to 1 a.m. Your smartphones, computers and smart watches will automatically adjust to the ...

This marks the return to standard time. When local time reaches 2 a.m., clocks will turn backward an hour to 1 a.m. Your smartphones, computers and smart watches will automatically adjust to the time ...

But a new study from researchers in Denmark may help you avoid the dreaded paper cut – a painful experience for office workers and book readers alike. Thanks to their lab experiments ...

While the end of summer is less than a month away, we’re still more than 10 weeks from the end of Daylight Saving Time and turning our clocks back an hour. Daylight Saving Time ends at 2 a.m. on ...