CN 7140 then SC 2128 at Beijing
Harbin → Beijing → Xiamen
Timetable, Beijing time
23:00CN 7140 from Harbin at the gate
21:30SC 2128 to Xiamen leaves the gate
22 h 30 apart on the timetable, overnight
SC 2128 leaves 22 h 30 after CN 7140 arrives on the timetable: more than half a day, so not a connection we count.