CA 1492 then CA 1641 at Beijing
Zunyi → Beijing → Harbin
Timetable, Beijing time
23:55CA 1492 from Zunyi at the gate
19:15CA 1641 to Harbin leaves the gate
19 h 20 apart on the timetable, overnight
CA 1641 leaves 19 h 20 after CA 1492 arrives on the timetable: more than half a day, so not a connection we count.