From 9 o'clock to 24 o'clock. Official website of Nanjing Forestry University shows that Nanjing Forestry University stipulates that the educational administration network management system will be open at 9 am and closed at 24 pm. Nanjing Forestry University, referred to as "Lin Nan", is located in Nanjing, Jiangsu Province. It is a provincial key university jointly established by the State Forestry and Grassland Bureau and the People's Government of Jiangsu Province, and jointly established by the Ministry of Education and the People's Government of Jiangsu Province.