Toddlers who take 1 nap a day, when does your wake, nap, bedtime?

My son is 2 and is a big sleeper, he goes to bed for the night at 8pm and wakes up at 8am. He takes his first nap at 10-12 then his second at 3-4. I let him play till he comes to me and says night night then I put him down.