FR 6596 then IB 5170 at Barcelona
Manchester → Barcelona → Bilbao
Timetable, Barcelona time
23:40FR 6596 from Manchester at the gate
15:35IB 5170 to Bilbao leaves the gate
15 h 55 apart on the timetable, overnight
IB 5170 leaves 15 h 55 after FR 6596 arrives on the timetable: more than half a day, so not a connection we count.