FR 3040 then SN 3704 at Barcelona
Prague → Barcelona → Brussels
Timetable, Barcelona time
21:15FR 3040 from Prague at the gate
17:40SN 3704 to Brussels leaves the gate
20 h 25 apart on the timetable, overnight
SN 3704 leaves 20 h 25 after FR 3040 arrives on the timetable: more than half a day, so not a connection we count.