(Almost) Silent Digital Clock

Edit: I've since made an improved version of this:

https://www.planetminecraft.com/project/digital-clock-v2/

An (almost) silent digital clock. The only noise is made by copper bulbs. They are barely audible and produce an oh so satisfying blinky clicky noise. This clock accurately keeps real life time. To set the time, look around back for the on/off switch. Time it with a real life clock's second hand to start the one minute timer. This will also activate a one second timer that controls the blinking of the : between numbers. Go around to the front of the clock and use the controls to set the digits. Advance one number with the right button or reset to zero with the left button. Work from right to left. Once the timer is started and the numbers are set, the clock will run accurately until you pause or exit the game.

Please:
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