Sleeping Question!!!

My lil man is 3 weeks old and he sleeps around 11pm. He sleeps good these days (thank god, finally getting some sleep).

My question is, before final long stretch of night sleeping, for how long your lil one is awake?

I recently noticing my baby’s schedule and he takes his last nap at 4 and get up at 6-6:30 pm. Then he goes to sleep around 10 or 11pm.

Sometimes I feel he is over tired.. but no matter how much I try, he is not ready to sleep.

Is 4 hours awake time is too much for almost 4 weeks old baby?