Install the timer so you can begin using the time tracking features of QuickBooks. When you install the timer, you can track time on your computer and use the timer to bill time to clients and record time for payroll purposes. You can also install the timer on computers that aren't running QuickBooks. The timer program is found on the QuickBooks program disk, or you can copy the timer program files from one computer to another. You won't need any password or registration number to install the timer program on any computer.