Portion-time hours can be anywhere from a few hours a week, appropriate up to 35 hours. https://kuicy.net/%EB%8B%A8%EA%B8%B0%EA%B5%AC%EC%A7%81-%EC%97%AC%EC%84%B1-%EA%B5%AC%EC%9D%B8%EA%B5%AC%EC%A7%81%EC%9D%98-%EC%83%88%EB%A1%9C%EC%9A%B4-%EA%B8%B0%ED%9A%8C/
