HU 7234 then HU 7213 at Guangzhou
Ningbo → Guangzhou → Nanjing
Timetable, Guangzhou time
22:15HU 7234 from Ningbo at the gate
14:15HU 7213 to Nanjing leaves the gate
16 h apart on the timetable, overnight
HU 7213 leaves 16 h after HU 7234 arrives on the timetable: more than half a day, so not a connection we count.