KL 1968 then U2 2172 at Schiphol
Zagreb → Amsterdam → Manchester
Timetable, Amsterdam time
18:45KL 1968 from Zagreb at the gate
14:55U2 2172 to Manchester leaves the gate
20 h 10 apart on the timetable, overnight
U2 2172 leaves 20 h 10 after KL 1968 arrives on the timetable: more than half a day, so not a connection we count.