QR 3733 then SN 3704 at Barcelona
Mahón → Barcelona → Brussels
Timetable, Barcelona time
19:25QR 3733 from Mahón at the gate
17:40SN 3704 to Brussels leaves the gate
22 h 15 apart on the timetable, overnight
SN 3704 leaves 22 h 15 after QR 3733 arrives on the timetable: more than half a day, so not a connection we count.