Bohai university Economic Development Building closes at 23: 00. Bohai University of Economics and Law was formerly the Department of International Economics and Trade, the Department of Finance and the Department of Law of bohai university University of Economics and Law. 20 1 1 After the integration of disciplines, the school was renamed the School of Economics and Law. The school has strict requirements on the closure of the dormitory library, while bohai university University of Economics and Law closes at 23 o'clock.