FR 5204 then FR 7072 at Dublin
Sofia → Dublin → Porto
Timetable, Dublin time
19:20FR 5204 from Sofia at the gate
17:00FR 7072 to Porto leaves the gate
21 h 40 apart on the timetable, overnight
FR 7072 leaves 21 h 40 after FR 5204 arrives on the timetable: more than half a day, so not a connection we count.