3U 8101 then CA 1915 at Beijing
Chongqing → Beijing → Zhengzhou
Timetable, Beijing time
09:103U 8101 from Chongqing at the gate
21:15CA 1915 to Zhengzhou leaves the gate
12 h 05 apart on the timetable
CA 1915 leaves 12 h 05 after 3U 8101 arrives on the timetable: more than half a day, so not a connection we count.