As an international student in Japan, you can typically work up to 28 hours per week during school terms and up to 40 hours per week (full-time) during long vacations (summer, winter, spring breaks), provided you have a “Permission to Engage in Activity Other Than That Permitted” (資格外活動許可) and your studies remain your priority. This permit must be obtained from the Immigration Bureau, often when you first arrive in Japan.
