EC 7108 then QR 3503 at Barcelona
Geneva → Barcelona → Santander
Timetable, Barcelona time
18:35EC 7108 from Geneva at the gate
11:20QR 3503 to Santander leaves the gate
16 h 45 apart on the timetable, overnight
QR 3503 leaves 16 h 45 after EC 7108 arrives on the timetable: more than half a day, so not a connection we count.