QR 3546 then EC 7173 at Barcelona
Bilbao → Barcelona → Berlin
Timetable, Barcelona time
12:05QR 3546 from Bilbao at the gate
07:20EC 7173 to Berlin leaves the gate
19 h 15 apart on the timetable, overnight
EC 7173 leaves 19 h 15 after QR 3546 arrives on the timetable: more than half a day, so not a connection we count.