The school rules and regulations are different. Official website, Dalian University of Technology, inquired that the school will have a summer vacation on July 17, 2023 and start school on August 17, 2023. However, Dalian Maritime University and Dalian University of Technology are not the same school, and the school rules and disciplines are different, resulting in the summer holidays of Dalian Maritime University being July 18 and August 2 1 2023.