IB 934 then FR 3614 at Madrid
Dubrovnik → Madrid → Prague
Timetable, Madrid time
15:40IB 934 from Dubrovnik at the gate
06:10FR 3614 to Prague leaves the gate
14 h 30 apart on the timetable, overnight
FR 3614 leaves 14 h 30 after IB 934 arrives on the timetable: more than half a day, so not a connection we count.