CA 1512 then OM 224 at Beijing
Nanchang → Beijing → Ulaanbaatar
Timetable, Beijing time
16:10CA 1512 from Nanchang at the gate
11:30OM 224 to Ulaanbaatar leaves the gate
19 h 20 apart on the timetable, overnight
OM 224 leaves 19 h 20 after CA 1512 arrives on the timetable: more than half a day, so not a connection we count.