CA 1336 then CA 1491 at Beijing
Nanning → Beijing → Zunyi
Timetable, Beijing time
15:25CA 1336 from Nanning at the gate
09:30CA 1491 to Zunyi leaves the gate
18 h 05 apart on the timetable, overnight
CA 1491 leaves 18 h 05 after CA 1336 arrives on the timetable: more than half a day, so not a connection we count.