Is it legal to pay the salary in June in August?

This is illegal. The employing unit shall, in accordance with the provisions of the labor contract, pay the laborers' labor remuneration in full and on time, and shall not delay or deduct the labor remuneration without reason. In this case, the laborer can negotiate with the employer. If negotiation fails, the laborer may complain to the labor inspection brigade or apply for labor arbitration. Legal basis: Article 50 of the Labor Law of People's Republic of China (PRC) shall be paid to the laborer himself on a monthly basis in the form of currency. The wages of workers shall not be deducted or delayed without reason. Article 91 Where an employing unit infringes upon the lawful rights and interests of laborers in any of the following circumstances, the labor administrative department shall order it to pay the laborers' wages and economic compensation, and may also order it to pay compensation: (1) Deducting or delaying the laborers' wages without reason; (2) Refusing to pay overtime wages to laborers; (3) Paying workers' wages below the local minimum wage standard; (4) Failing to give economic compensation to the laborer in accordance with the provisions of this Law after the termination of the labor contract.