CA 1492 then CA 1611 at Beijing
Zunyi → Beijing → Harbin
Timetable, Beijing time
23:55CA 1492 from Zunyi at the gate
17:30CA 1611 to Harbin leaves the gate
17 h 35 apart on the timetable, overnight
CA 1611 leaves 17 h 35 after CA 1492 arrives on the timetable: more than half a day, so not a connection we count.