CZ 3264 then 9C 8856 at Guangzhou
Dazhou → Guangzhou → Shanghai Hongqiao
Timetable, Guangzhou time
23:15CZ 3264 from Dazhou at the gate
18:059C 8856 to Shanghai Hongqiao leaves the gate
18 h 50 apart on the timetable, overnight
9C 8856 leaves 18 h 50 after CZ 3264 arrives on the timetable: more than half a day, so not a connection we count.