U2 7900 then KL 1803 at Schiphol
Valencia → Amsterdam → Düsseldorf
Timetable, Amsterdam time
17:50U2 7900 from Valencia at the gate
17:10KL 1803 to Düsseldorf leaves the gate
23 h 20 apart on the timetable, overnight
KL 1803 leaves 23 h 20 after U2 7900 arrives on the timetable: more than half a day, so not a connection we count.