1 month old son sleeps through day and awake at night. how to make him sleep at night and awake during day. please help?

Change it: Never allow more than 2 hours of sleep in a single segment during the day,waking up the baby to feed.Change then and stimulate them until tired, then put to crib to sleep another 2 hr segment. At night, allow baby to sleep any length of time, feeding only if they wake, then back to bed. Babies are capable of only one deep sleep period of 4 hours/day. Let it happen during the day and this happens