HU 7814 then HU 4321 at Beijing
Guangzhou → Beijing → Haikou
Timetable, Beijing time
23:15HU 7814 from Guangzhou at the gate
22:30HU 4321 to Haikou leaves the gate
23 h 15 apart on the timetable, overnight
HU 4321 leaves 23 h 15 after HU 7814 arrives on the timetable: more than half a day, so not a connection we count.