It's a clock that shows you the time of the day, not some arbitrary number.
Natural clock is an “analog” clock that instead of showing hours and minutes, the two hands show the position of the Sun and Moon in the sky. Meaning that the Sun hand would take 24 hours to make a full rotation, and at “12”, it will always be high noon, and at “6” it will always be true midnight.
It uses neoPixels around the face to visualize the length night and day and the horizon.
It uses GPS coordinates to calibrate itself and you can set it to show the time of day anywhere else in the world.