20 15 The estimated graduation time from high school is none. According to relevant data, there is no specific time for graduation from university, and the graduation time will be different in different schools, and the same school will be different in different years. 20 15 high school graduation time is not counted. High school is short for high school. Middle schools in China are divided into junior high schools and senior high schools (generally referred to as junior high schools and senior high schools), both of which belong to the category of secondary education. High school is a higher education institution after the end of nine-year compulsory education in junior high school in China. Generally, it is a three-year system, that is, one year of high school, two years of high school and three years of high school.