CA 4165 then OM 224 at Beijing
Guiyang → Beijing → Ulaanbaatar
Timetable, Beijing time
19:50CA 4165 from Guiyang at the gate
11:30OM 224 to Ulaanbaatar leaves the gate
15 h 40 apart on the timetable, overnight
OM 224 leaves 15 h 40 after CA 4165 arrives on the timetable: more than half a day, so not a connection we count.