CZ 6739 then CZ 3263 at Guangzhou
Sanya → Guangzhou → Dazhou
Timetable, Guangzhou time
14:45CZ 6739 from Sanya at the gate
10:25CZ 3263 to Dazhou leaves the gate
19 h 40 apart on the timetable, overnight
CZ 3263 leaves 19 h 40 after CZ 6739 arrives on the timetable: more than half a day, so not a connection we count.