9C 6726 then KN 5830 at Guangzhou
Ningbo → Guangzhou → Beijing Daxing
Timetable, Guangzhou time
22:159C 6726 from Ningbo at the gate
20:45KN 5830 to Beijing Daxing leaves the gate
22 h 30 apart on the timetable, overnight
KN 5830 leaves 22 h 30 after 9C 6726 arrives on the timetable: more than half a day, so not a connection we count.