When and how long is the summer vacation for students in Japan?

Question:

how long and what month does the vacation start and end for elementary, middle school, high school and college students start and end. and how old do you start high school and college in japan?

Answer:

Oh, no one is giving a correct answer.

On elementary, junior high and high schools, it's between July 20th (or so) and the end of August. It means the new semester starts on September 1st or so.

For colleges, each college has their own schedule. Generally, it's longer than other levels. They have summer vacation until September 20th or so.

You start high school at 15 and college at 18.