Someone replied that it’s a quartz clock because it’s digital and therefore not getting its timing from mains. I certainly could have been wrong. I only assumed it was tied to mains frequency ...

This clock is the first thing that [Kevin] ever made, way back before the Arduinofication of making, and long before the open hardware community exploded, and before the advent of cheap, ...

However, you can tell the time without saying am and pm. To do this you can use the 24-hour clock. The 24-hour clock always uses 4 digits. You see this most often on digital clocks. Complete this ...

What is AM and PM Meaning in Time? Ever wondered where AM and PM came from? Discover the fascinating history behind the 12-hour clock format and these terms, from ancient timekeeping to modern usage.