QR 3641 then FR 9913 at Barcelona
Catania → Barcelona → Tallinn
Timetable, Barcelona time
20:55QR 3641 from Catania at the gate
15:30FR 9913 to Tallinn leaves the gate
18 h 35 apart on the timetable, overnight
FR 9913 leaves 18 h 35 after QR 3641 arrives on the timetable: more than half a day, so not a connection we count.