Labor law does not provide for catering industry over four hours by half a shift, but if the employer arranges for workers to work overtime, should be paid in accordance with the law.

Related laws and regulations: "The Chinese People's **** and the State Labor Law"

Article 44 In one of the following cases, the employer shall pay the wage compensation higher than the wage of the worker's normal working hours in accordance with the following standards:

(a) Arrange for the worker to extend the working hours, pay the wage compensation of not less than one hundred and fifty percent of the wage;

(2) If a worker is assigned to work on a rest day and no compensatory time off can be arranged, a wage remuneration of not less than two hundred percent of the wage is paid;

(3) if a worker is assigned to work on a statutory vacation, a wage remuneration of not less than three hundred percent of the wage is paid.