Police Q2388ED Manual De Instrucciones página 6

4.) Press button "A" (long press for fast turning)
to adjust the minute rotor position until the
rotor turns to "00" position.
5.) Under calibration mode, press button "B" to
to enter time adjusting mode.
6.) Press button "A" (long press for fast turning)
to adjust hour.
7.) Press button "B" to jump to
minute adjusting.
8.) Press button "A" (long press for fast turning)
to adjust minute.
9.) After adjusting ,press button "B" to confirm
and exit calibration / adjusting mode.