About 86 minutes. According to the relevant information of subway operation, dongjiakou subway adopts the intersection mode, with a one-way running time of about 72 minutes and a departure interval of 14 minutes and 50 seconds, so the bus runs for about 86 minutes. Qingdao Metro 13 line starts from Jialingjiang Road Station, passes through the eastern urban area, western urban area and dongjiakou Economic Zone of Qingdao West Coast New District, and ends at dongjiakou Railway Station, with a general northeast-southwest trend.