OM 223 then CA 867 at Beijing
Ulaanbaatar → Beijing → Shenzhen
Timetable, Beijing time
19:30OM 223 from Ulaanbaatar at the gate
18:30CA 867 to Shenzhen leaves the gate
23 h apart on the timetable, overnight
CA 867 leaves 23 h after OM 223 arrives on the timetable: more than half a day, so not a connection we count.