i think yr baby has not understand the differences between day and night. casue when yr baby is in your womb, the day is night for him due to constant rocking (from our movement). one way you can try is talk to him and let him know that it is night that, by 7 evening , you should tone down the activites such as dim light, music, tv must off.... then by 9am, light off and kiss him good night. hope this work. slowly give yr baby times. i have this porblem for first baby but thank God after some time he can slowly adjust.