Size: 11.1 x 6.61 inches; Times zones: 7; This atomic alarm clock has chic faux wood siding and not only shows the date and day of the week, but it also the moon phases. It requires two AA ...

The time stamp is regulated by an atomic clock. But a 2019 budget proposal for NIST would close WWV, WWVH in Hawaii and WWVB, which syncs up the time for about 50 million radio-controlled clocks ...

China will soon send a trio of atomic clocks to its Tiangong space station, to establish a space-based timekeeping system of exceptional accuracy. The clocks can work together to measure time with ...

China’s new space station could soon have the most precise clock in orbit if it passes a technical evaluation next week, according to a scientist familiar with the project.