Whirlpool RB220PXB Use And Care Manual page 8

Setting the clock
Push in and turn the Minute Timer Knob to
set the clock.
2. Let the Minute Timer Knob pop out.
Turn clockwise until Minute Timer hand
points to OFF. The clock setting will
change if you push in the knob when
turning.
Using the Minute Timer
The Minute Timer does not start or stop the
oven. It works like a kitchen timer. Set it in
minutes up to an hour. You will hear a
buzzer when the set time is up.
NOTE: Do not push in the knob when setting
the Minute Timer or when stopping the
buzzer. Pushing in and turning the Minute
Timer Knob changes the clock setting.
1. Without pushing it in, turn the Minute
Timer Knob counterclockwise until the
timer hand passes the setting you want.
2. Without pushing it in, turn the knob
back to the setting you want. When the
time is up, a buzzer will sound. To stop
the buzzer, turn the Minute Timer hand
to OFF.