CA 1840 then CA 1491 at Beijing
Ningbo → Beijing → Zunyi
Timetable, Beijing time
14:25CA 1840 from Ningbo at the gate
09:30CA 1491 to Zunyi leaves the gate
19 h 05 apart on the timetable, overnight
CA 1491 leaves 19 h 05 after CA 1840 arrives on the timetable: more than half a day, so not a connection we count.