3U 8205 then MU 2302 at Guangzhou
Kunming → Guangzhou → Xi'an
Timetable, Guangzhou time
19:503U 8205 from Kunming at the gate
13:40MU 2302 to Xi'an leaves the gate
17 h 50 apart on the timetable, overnight
MU 2302 leaves 17 h 50 after 3U 8205 arrives on the timetable: more than half a day, so not a connection we count.