9 o'clock to 2 1 point. MacKay is a department store brand, which originated in Japan and developed in Dalian. It belongs to the big business group. Its business hours are Monday to Sunday from 9: 00 to 2 1. Opening the door at 9 am is convenient for consumers to have enough time to shop during the day, and closing the door at night 2 1 can meet the shopping needs of consumers after work or at night.