The first semester lasts from the end of February to July. Last semester of university: from early September to early October, about four months; Freshman semester: from the end of February to the beginning of July, about four months; During the university period, the class time is calculated on a weekly basis, and the school curriculum is set to 17 weeks. Enter the exam week after 17 weeks, and enter the holiday stage after the exam week. So the next semester is from the end of February to July. Different universities have different holidays and vacation time, and each semester is controlled at four months.