Not that the present situation and the abundance of free time that many are experiencing has anything to do with [Leo Fernekes] all-transistor digital clock build, which he started a year ago ...

We can tell the time without saying AM and PM though - for this, we use the 24 hour clock. The 24 hour clock always uses 4 digits, and we use this system most often with digital clocks.

The Colgate clock, with a 40-foot diameter, has been telling time since 1924. High atop a former soap factory in Clarksville, Indiana, is one of the world's largest clocks, a landmark that has ...