2-5 years. The in-service graduate school of Tianjin University of Technology allows students to postpone graduation for 2-5 years. During this period, they can graduate smoothly. According to the requirements of the school, they can complete all the courses within the specified time, take relevant exams and defenses, and only when they meet the requirements can they apply for graduation. Tianjin University of Technology, located in Tianjin, is a multidisciplinary university with work as the center, combining work with theory, and the coordinated development of engineering, science, management, literature and art.