Where is my resume? I usually have to fill it out from primary school, at least two. Generally speaking, it is enough to fill in primary school and junior high school. If the time is, it is the time to start and finish school every year. For example, junior high school usually starts in September and ends in June. Then the time is the year when you start school, the year when you graduate, that is, three years. For example, 20 12.9-20 15.6 is almost a complete semester.
Then, in other places, fill in the position of the student. In other places, just fill in the name of the school, and in the case of references, fill in the name of your class teacher. Just count the time yourself, that's all.