Nice to meet you!!
Typical of Japan holiday are New year day,National Foundation day(2/11), Health Sports Day(10/10), Culture Day(11/3), Labor Thanksgiving Day(11/23), Senior Citizens's Day(9/15), Coming of Age Day(1/15) etc・・・

Student's holiday is summer vacation(July 3rd week～September 1st)and winter vacation(Xmas～January 8)
there is a lot of holiday.