The device only supports the 24-hour mode 1. In standby mode, press and hold DISPLAY/CLOCK SET on the front panel. 2. Turn the VOLUME -/+ control (or press VOL +/- on the remote) to set the hour. 3. Press DISPLAY/CLOCK SET to confirm the setting. 4. Repeat steps 2-3 to set the minutes. Notes: The clock setting will be erased when the system is disconnected from the power supply.