FR 555 then FR 7078 at Dublin
Manchester → Dublin → Porto
Timetable, Dublin time
19:45FR 555 from Manchester at the gate
11:25FR 7078 to Porto leaves the gate
15 h 40 apart on the timetable, overnight
FR 7078 leaves 15 h 40 after FR 555 arrives on the timetable: more than half a day, so not a connection we count.