CA 1492 then CA 823 at Beijing
Zunyi → Beijing → Chiang Mai
Timetable, Beijing time
23:55CA 1492 from Zunyi at the gate
17:45CA 823 to Chiang Mai leaves the gate
17 h 50 apart on the timetable, overnight
CA 823 leaves 17 h 50 after CA 1492 arrives on the timetable: more than half a day, so not a connection we count.