OM 223 then ZH 9106 at Beijing
Ulaanbaatar → Beijing → Shenzhen
Timetable, Beijing time
19:30OM 223 from Ulaanbaatar at the gate
17:00ZH 9106 to Shenzhen leaves the gate
21 h 30 apart on the timetable, overnight
ZH 9106 leaves 21 h 30 after OM 223 arrives on the timetable: more than half a day, so not a connection we count.