Author: TI84CalcWiz
Apps & Programs > Other Programs
A stopwatch and a countdown timer in one program. The stopwatch runs on the Enter key: press it to start, again to pause, and again to pick up where you left off. The zero key resets it.
The countdown asks for minutes and seconds, then flashes on screen when it reaches zero.
Both show hours, minutes, and seconds, and the timing comes off the calculator’s own clock, so a long run stays accurate. Quit the stopwatch and your time stays on the home screen as a plain number of seconds, ready for your next calculation.