MU 5287 then MF 8306 at Guangzhou
Hefei → Guangzhou → Xiamen
Timetable, Guangzhou time
10:30MU 5287 from Hefei at the gate
10:10MF 8306 to Xiamen leaves the gate
23 h 40 apart on the timetable, overnight
MF 8306 leaves 23 h 40 after MU 5287 arrives on the timetable: more than half a day, so not a connection we count.