CZ 3264 then ZH 8993 at Guangzhou
Dazhou → Guangzhou → Haikou
Timetable, Guangzhou time
23:15CZ 3264 from Dazhou at the gate
20:20ZH 8993 to Haikou leaves the gate
21 h 05 apart on the timetable, overnight
ZH 8993 leaves 21 h 05 after CZ 3264 arrives on the timetable: more than half a day, so not a connection we count.