CA 4141 then HU 7297 at Beijing
Chongqing → Beijing → Lanzhou
Timetable, Beijing time
17:00CA 4141 from Chongqing at the gate
15:45HU 7297 to Lanzhou leaves the gate
22 h 45 apart on the timetable, overnight
HU 7297 leaves 22 h 45 after CA 4141 arrives on the timetable: more than half a day, so not a connection we count.