CZ 3379 then CZ 3263 at Guangzhou
Changsha → Guangzhou → Dazhou
Timetable, Guangzhou time
14:00CZ 3379 from Changsha at the gate
10:25CZ 3263 to Dazhou leaves the gate
20 h 25 apart on the timetable, overnight
CZ 3263 leaves 20 h 25 after CZ 3379 arrives on the timetable: more than half a day, so not a connection we count.