MF 8339 then 8L 9976 at Guangzhou
Beijing Daxing → Guangzhou → Kunming
Timetable, Guangzhou time
21:35MF 8339 from Beijing Daxing at the gate
21:158L 9976 to Kunming leaves the gate
23 h 40 apart on the timetable, overnight
8L 9976 leaves 23 h 40 after MF 8339 arrives on the timetable: more than half a day, so not a connection we count.