Batman (or Bruce Wayne) runs Wayne Industries and is a very active CEO going to meetings and press events. Assuming his day is as busy as any normal CEO, it's at least a full time job (<= 40-50 hours a week, but probably around 60-70 hours if he's as active a boss as the comics show).
He also fights crime, which he does nightly and would probably take up at least 5-6 hours a night.
He also checks up on the other bat-heroes (as seen in all of the Bat-Comics) which could be part of his nightly shift, but are more likely to be outside of that if the Bat-Hero is not located in Gotham.
He also needs sleep at least 4 hours a night.
Where does he get the time to do all the extensive research needed to fight the crime and gain all the knowledge of his enemies and allies?
Does Batman actually have a superpower?