Undergraduate students can't, because they are international students, American law only allows international graduate students to work outside the school. If it is winter and summer vacation, you can basically be full-time. The time limit is during school, that is, during the semester, because students must ensure good grades to continue to hold the F 1 visa, but you can work part-time.

Many American students work part-time to relieve economic pressure. According to the regulations of the American government, foreign students do not need to apply for special permission to work on campus, but they must register to maintain their full-time student status. The weekly working hours are generally limited to 20 hours in the semester and 40 hours at most on holidays, so it is not necessary to limit them to the campus. So, what ways do American students work inside and outside the school? Please see the introduction below. The way and salary of American students working outside school (the data is for reference only) help supermarket salespeople pack and deliver, 4-5 dollars/hour. Go to the restaurant to wash dishes, clean the table, etc. And you can eat it for free. Clean the room, 15 USD/hour. As a waiter at a large banquet, 10 USD/hour (uniform required). Run errands for people, queue up, go to the post office or dry cleaners, and look after pets. 10- 15 USD/hour. As a nanny, 5- 10 dollars/hour. Typing, 3-5 dollars/page. Clean and trim the garden for others. ...