HU 7234 then ZH 9869 at Guangzhou
Ningbo → Guangzhou → Nanjing
Timetable, Guangzhou time
22:15HU 7234 from Ningbo at the gate
13:40ZH 9869 to Nanjing leaves the gate
15 h 25 apart on the timetable, overnight
ZH 9869 leaves 15 h 25 after HU 7234 arrives on the timetable: more than half a day, so not a connection we count.