4-Digit Countdown Timer (in minutes and seconds)

In this video, I'll demonstrate a slight modification to my previous Arduino TM1637 4-digit LED display code (from this video:    • LED Displays  ) so that, instead of just counting down integer values from 5000 - 0, it shows a timer counting down from one hour, displaying the value in mm:ss format. I'm using an Arduino Nano and a TM1637 4-digit 7-segment display. The Arduino code is available on my Patreon page here:   / playfultech