Yes. Check-in time is usually 3 pm in Japan. If you fly in C/F you could just go straight to sightseeing by starting off with a (sushi) breakfast at the fish market.

In Y, it might get rather complicated. Last time I had an early arrival (8 am) on a long haul to Japan, I couldn't get one minute of sleep on the plane (2/3 flights were turbulences). As a result I was walking around like a zombie.