Get off work before 4: 00 ~ 4: 30 pm. Official website of Hainan University School shows that the Academic Affairs Office is the functional department in charge of teaching, and the Academic Affairs Office of Hainan University closes before 4: 00 ~ 4: 30 pm. HainanUniversity, also known as Haida University, was founded in 2007. Hainan University was jointly established by the former South China University of Tropical Agriculture and the former Hainan University. Hainan University is a comprehensive key university in Hainan Province, jointly established by the Ministry of Education and the People's Government of Hainan Province.