HU 7492 then HU 4321 at Beijing
Xiamen → Beijing → Haikou
Timetable, Beijing time
23:45HU 7492 from Xiamen at the gate
22:30HU 4321 to Haikou leaves the gate
22 h 45 apart on the timetable, overnight
HU 4321 leaves 22 h 45 after HU 7492 arrives on the timetable: more than half a day, so not a connection we count.