At that age i honestly dont think it matters. Jesse was went to be that late until around 4 months then i just started getting him in the habbit of going around 8pm.. i also cut down a feed at that time too. Now at nearly 6 months hes in bed by 7.30pm but he's established that bit earlier time himself.
Just do what works for you.. dont listen to what other people are telling you to do as they know nothing.. every baby is different.