... in the cell slot.B.Clock settinga. holds down “SET” the key 3 seconds, “12HR” flash on ... ”flash, if you confirme the model,please press “SET” the key 1 time, then “hour” the position ... and adjust,.If you confirme that,please press " SET” the key, then “minute” the position will glitter ... press" ADJ” key and adjust number, then press “SET” key to confirm, simultaneously “minute”position flash, press ...