U2 5707 then KL 1535 at Schiphol
Southend → Amsterdam → Valencia
Timetable, Amsterdam time
21:35U2 5707 from Southend at the gate
21:00KL 1535 to Valencia leaves the gate
23 h 25 apart on the timetable, overnight
KL 1535 leaves 23 h 25 after U2 5707 arrives on the timetable: more than half a day, so not a connection we count.