CA 1723 then 8L 9988 at Beijing
Hangzhou → Beijing → Kunming
Timetable, Beijing time
20:25CA 1723 from Hangzhou at the gate
20:158L 9988 to Kunming leaves the gate
23 h 50 apart on the timetable, overnight
8L 9988 leaves 23 h 50 after CA 1723 arrives on the timetable: more than half a day, so not a connection we count.