8：11-21：11。 According to the public information of Xilaishun official website, the business hours of Xilaishun are 8: 11-21: 11. Xilaishun, an old Beijing restaurant brand, was founded in the 19th year of the Republic of China (1931). It is a representative of Beijing Muslim restaurants. Its dishes are luxurious and elegant, and it is good at stir-frying, and it is very rich in varieties. It is unique among many Muslim restaurants in Beijing.