Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Telling Time



Jonathan E. Hardis


In Low-Tech Blues [June], you note that we are surrounded by clocks, but lament the lack of systems to set them automatically. Our job is to help fix that. Your readers can use our time servers (www. to automatically set the clocks on their Internet-connected products. Thank you for pointing out that more and more clodks and watches receive the time broadcast from our radio station WWVB. Looking to the future, as AM and FM broadcast radio goes digital, we've asked the FCC to include time data in the bit stream. Strong local signals will engender even more self-setting clocks.
Popular Science


clocks, time, time servers


Hardis, J. (2017), Telling Time, Popular Science (Accessed May 29, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created February 19, 2017