KL 948 then U2 7899 at Schiphol
Belfast City → Amsterdam → Valencia
Timetable, Amsterdam time
12:15KL 948 from Belfast City at the gate
12:00U2 7899 to Valencia leaves the gate
23 h 45 apart on the timetable, overnight
U2 7899 leaves 23 h 45 after KL 948 arrives on the timetable: more than half a day, so not a connection we count.