This program is made to countdown, and run a timer to see your fastest lap time, and run a timer to refer to whenever you want to, but you don't need the calculator on, to run run the timer, so start the timer and turn the calulator off, or run something else. It also includes a binary clock and a digital clock. Also to see your age or to a certain date, 1) hit 2 (timer) 2) 2 (cont. Timer) 3) enter 4) Type two and hit enter 5) type year and others in the correct catagory. 6) now it will display the differance from now