EW 2520 then KL 1512 at Barcelona
Stuttgart → Barcelona → Amsterdam
Timetable, Barcelona time
14:25EW 2520 from Stuttgart at the gate
11:15KL 1512 to Amsterdam leaves the gate
20 h 50 apart on the timetable, overnight
KL 1512 leaves 20 h 50 after EW 2520 arrives on the timetable: more than half a day, so not a connection we count.