What time does the supermarket security guard go to work and get off work? Is there a day shift and a night shift? What is the salary?

Supermarket security guards go to work at 8: 00, arrive at their posts at 7: 30, and get off work at night 10. Generally, supermarkets get off work in summer 10, and in winter 10, and then go to work as usual in the evening shift, taking a day off the day before and changing shifts once a week. I said, the salary is about 1800. Wages in these areas are basically the same.