5: 30pm According to the inquiry of official website of Henan Polytechnic University, the academic affairs office and administrative office of Henan Polytechnic University are always open from 8: 30am to 5: 30pm on weekdays. Henan Polytechnic University, called Henan Polytechnic for short, is located in Jiaozuo City, Henan Province. It is a key university with characteristics in Henan Province, which is jointly established by the central and local governments and mainly managed by local governments. It is a university jointly established by the Henan Provincial People's Government and the former state administration of work safety.