The distance between A and B is 48km. The express train departs from Station A to Station B at 5:00 in the morning, and the local train departs from Station B to Station A at the same time. The two trains meet at 11:00 in the morning, and the express train arrives at Station B at 3:00 in the afternoon. What time does it arrive at Station A?
甲、乙两站相距48km，快车凌晨5：00从甲站开往乙站，慢车同时从乙站开往甲站，两车在上午11：00相遇，下午3：00快车到达乙站，慢车到达甲站是什么时刻？
<result>20</result>