9 am to 24 am on Saturday and Sunday. According to the information sharing and exchange platform of Kyushu drunk high-quality catering, it is learned that the use time of 69% discount for college students in Haidilao is from 14: 11 pm to 17: 11 pm from Monday to Friday and from 22: 11 pm to 7: 11 the next day; The use time of the 28% discount is from 9: 11 am to 24: 11 am on Saturday and Sunday. Not only do you need to enter the venue within the preferential time, but you also need to pay the bill within the preferential time to enjoy the discount, but you can also pay the bill in advance.