CN 7140 then CA 4166 at Beijing
Harbin → Beijing → Guiyang
Timetable, Beijing time
22:30CN 7140 from Harbin at the gate
21:20CA 4166 to Guiyang leaves the gate
22 h 50 apart on the timetable, overnight
CA 4166 leaves 22 h 50 after CN 7140 arrives on the timetable: more than half a day, so not a connection we count.