Baby has days and nights mixed up

I have a 3 week old baby and I think he’s got his days and nights mixed up. During the day I’ll change him feed him and he’ll fall right asleep afterwards and sometimes even during his bottle. We open up all the curtains and have the tv going and do our normal day to day stuff to encourage him to know that it’s day time. And at night we have the sound machine/night light on, we change him, swaddle him up, feed him and then rock him to sleep. It usually takes him about 20 minutes to eat his bottle at night and is awake the whole time and then it usually takes him 20-30 minutes to fall asleep before placing him in his bassinet. He usually sleeps anywhere between 1-2 hours, sometimes 3 if we are lucky. Does anyone have any tips on how to keep him up more during the day so he’s sleeps more at night?