On your screen you can see both sides of the puzzle at the same time. You can rotate the hands in the desired direction clicking on the arrow buttons. This will do a one twelfth (one hour) rotation in the desired direction. Click the yellow buttons to change their position. If you push back one button you will see it coming out on the other side of the Rubik's Clock. The position of the four buttons determines which hands will turn when you scroll a gear.