Switching days and nights?

Babies at that age should be sleeping about 20 hours per day. At this point, it's too early to try and force them to eat or sleep at a certain time. However, to encourage proper sleep patterns, I would have my kids take naps in the living room where it was bright and sunny and still around everyday noise and sleep at night in the dark. It wasn't until about 7-8 weeks were they sleeping through the night and up a little bit more during the day. Be patient, they will be awake and more fun during the day soon enough and then you'll realize how nice it was when they slept most of the time.