9C 6726 then HU 7231 at Guangzhou
Ningbo → Guangzhou → Shanghai Pudong
Timetable, Guangzhou time
22:159C 6726 from Ningbo at the gate
20:40HU 7231 to Shanghai Pudong leaves the gate
22 h 25 apart on the timetable, overnight
HU 7231 leaves 22 h 25 after 9C 6726 arrives on the timetable: more than half a day, so not a connection we count.