You can set the clock time or change the time format by following the belw steps. 1. Press the POWER button to switch the device to Standby mode when it is in active mode. 2. Press and hold the TIME SET/AUTO SCAN button until the hour digits are displayed and begin to blink. 3. Press the TUNING +/- buttons to set the hour. 4. Press the TIME SET/AUTO SCAN button to confirm. 5. Repeat steps 2-3 to set the minute, year, month, day and 12/24 hour format.