CA 1512 then CA 1455 at Beijing
Nanchang → Beijing → Mianyang
Timetable, Beijing time
18:15CA 1512 from Nanchang at the gate
17:35CA 1455 to Mianyang leaves the gate
23 h 20 apart on the timetable, overnight
CA 1455 leaves 23 h 20 after CA 1512 arrives on the timetable: more than half a day, so not a connection we count.