FR 553 then EI 3554 at Dublin
Manchester → Dublin → Edinburgh
Timetable, Dublin time
21:25FR 553 from Manchester at the gate
15:30EI 3554 to Edinburgh leaves the gate
18 h 05 apart on the timetable, overnight
EI 3554 leaves 18 h 05 after FR 553 arrives on the timetable: more than half a day, so not a connection we count.