CA 1838 then CZ 3263 at Guangzhou
Shanghai Hongqiao → Guangzhou → Dazhou
Timetable, Guangzhou time
14:55CA 1838 from Shanghai Hongqiao at the gate
10:25CZ 3263 to Dazhou leaves the gate
19 h 30 apart on the timetable, overnight
CZ 3263 leaves 19 h 30 after CA 1838 arrives on the timetable: more than half a day, so not a connection we count.