EW 7520 then KL 1512 at Barcelona
Hamburg → Barcelona → Amsterdam
Timetable, Barcelona time
16:20EW 7520 from Hamburg at the gate
11:15KL 1512 to Amsterdam leaves the gate
18 h 55 apart on the timetable, overnight
KL 1512 leaves 18 h 55 after EW 7520 arrives on the timetable: more than half a day, so not a connection we count.