click on the lever or press number keys 0-8 to change the timespeed and click on the switch next to the timespeed display to set it forwards or backwards in time and press the red button to set the timespeed to 0 instantly UPDATE: @psalm0ne added many many more years so you should check those out, plus check out his games! also if you press space you can instantly go to the year you want to go to
thanks to @psalm0ne
