How does the timer function work?

1. Press the TIMER button.
2. Press the M/UNIT button briefly to add 1 minute, and press for 2 seconds to increase the time by intervals of 10 minutes.
3. Press the S button briefly to add 1 second, then press it for 2 seconds to increase the time by intervals of 10 seconds.
4. After having set the time, press the TIMER button to start the timer.
5. Press TIMER to pause the timer and change the time, then press TIMER to restart.