BA 777 then MF 2922 at Heathrow
Stockholm → London → Xiamen
Timetable, London time
14:15BA 777 from Stockholm at the gate
14:00MF 2922 to Xiamen leaves the gate
23 h 45 apart on the timetable, overnight
MF 2922 leaves 23 h 45 after BA 777 arrives on the timetable: more than half a day, so not a connection we count.