CZ 3264 then HO 1852 at Guangzhou
Dazhou → Guangzhou → Shanghai Hongqiao
Timetable, Guangzhou time
23:15CZ 3264 from Dazhou at the gate
21:15HO 1852 to Shanghai Hongqiao leaves the gate
22 h apart on the timetable, overnight
HO 1852 leaves 22 h after CZ 3264 arrives on the timetable: more than half a day, so not a connection we count.