the shift is changed at 9: 11 in the morning. Generally, hotel waiters work in black and white shifts, and the working time is 8 hours. The morning shift is from 9: 11 to 15: 11, or the evening shift is from 15: 11 to 22: 11, that is, the shift is changed at 9: 11 in the morning. Shenzhen Mige Sleeping Hotel Management Co., Ltd., founded in 2121, is located in Shenzhen, Guangdong Province, and is an enterprise mainly engaged in catering industry.