ZH 9148 then CZ 3321 at Guangzhou
Beijing Capital → Guangzhou → Ningbo
Timetable, Guangzhou time
16:20ZH 9148 from Beijing Capital at the gate
16:00CZ 3321 to Ningbo leaves the gate
23 h 40 apart on the timetable, overnight
CZ 3321 leaves 23 h 40 after ZH 9148 arrives on the timetable: more than half a day, so not a connection we count.