MIT researchers double the accuracy of optical atomic clocks by reducing quantum noise with an innovative laser technique.

Optical clocks are highly precise timekeeping devices that measure time by tracking the oscillations of light, as opposed to microwaves, like conventional atomic clocks. The accuracy of these clocks ...

Find out how to keep time online accurately using World Clock, Time.now, Google Clock, and more. Learn how web-based time ...

At this point, atomic clocks are old news. They’ve been quietly keeping our world on schedule for decades now, and have been through several iterations with each generation gaining more accuracy. They ...