Click on the arrows to turn the dials, click on pins to move them up and down, if the pin is green its in, if its red its out. Click the flip over button to flip the clock over. I you want to know how to solve the clock go here: https://www.youtube.com/watch?v=5OerYjT0pGg
I only made this project as a challenge so that I could get a clock myself... I am now making a solver for this.