Every June 9th and 10. Dingnan county No.2 Middle School official website's inquiry shows that the graduation time of dingnan county No.2 Middle School is June 10, and those who have exams on July 7, 8 and 9 will graduate on June 10. If they don't take other exams on September 9th, or they don't have exams in their province that day, then they will graduate on June 9th, so the graduation time of dingnan county No.2 Middle School is June 9th and 10 every year.