You can buy all kinds of conventional clocks that have hands and numbers for easy reading. Or, like [Fabio Ricci], you could build yourself something a little more esoteric, like this neat shadow ...

The RTD police department uses virtual reality training to prepare officers for high-stress scenarios and mental health crises.

The problematic WWVB radio receiver inside an atomic clock is removed and replaced with an ESP8266 Module and an Arduino sketch which synchronize the clock using the Network Time Protocol. Although ...