9C 6726 then ZH 9983 at Guangzhou
Ningbo → Guangzhou → Hangzhou
Timetable, Guangzhou time
22:159C 6726 from Ningbo at the gate
18:20ZH 9983 to Hangzhou leaves the gate
20 h 05 apart on the timetable, overnight
ZH 9983 leaves 20 h 05 after 9C 6726 arrives on the timetable: more than half a day, so not a connection we count.