9C 6726 then CZ 3296 at Guangzhou
Ningbo → Guangzhou → Nanning
Timetable, Guangzhou time
22:159C 6726 from Ningbo at the gate
20:50CZ 3296 to Nanning leaves the gate
22 h 35 apart on the timetable, overnight
CZ 3296 leaves 22 h 35 after 9C 6726 arrives on the timetable: more than half a day, so not a connection we count.