KL 856 then U2 2170 at Schiphol
Seoul → Amsterdam → Manchester
Timetable, Amsterdam time
05:20KL 856 from Seoul at the gate
21:40U2 2170 to Manchester leaves the gate
16 h 20 apart on the timetable
U2 2170 leaves 16 h 20 after KL 856 arrives on the timetable: more than half a day, so not a connection we count.