World's most precise clock keeps time to 1 second in 3.7 billion years

Physicists at the National Institute of Standards and Technology (NIST) have built an enhanced version of an experimental atomic clock based on a single aluminum atom that would neither gain nor lose one second in about 3.7 billion years. That makes it the world’s most precise clock, more than twice as precise as the previous pacesetter based on a mercury atom.

« Back to World's most precise clock keeps time to 1 second in 3.7 billion years