CA 1370 then CA 1491 at Beijing
Sanya → Beijing → Zunyi
Timetable, Beijing time
16:25CA 1370 from Sanya at the gate
09:30CA 1491 to Zunyi leaves the gate
17 h 05 apart on the timetable, overnight
CA 1491 leaves 17 h 05 after CA 1370 arrives on the timetable: more than half a day, so not a connection we count.