Does McDonald's in Chengdu South Railway Station often recruit hourly workers?

Generally, fast food restaurants like KFC and McDonald's need hourly workers, especially on holidays. Usually you need to know Mandarin (but it doesn't matter if you don't apply for the front desk). The height requirement is not very high, just a normal level. Generally speaking, there are not many requirements, but the salary is relatively low and you can work at night. Is McDonald's open 24 hours?