EI 3551 then FR 204 at Dublin
Edinburgh → Dublin → London Stansted
Timetable, Dublin time
10:50EI 3551 from Edinburgh at the gate
08:20FR 204 to London Stansted leaves the gate
21 h 30 apart on the timetable, overnight
FR 204 leaves 21 h 30 after EI 3551 arrives on the timetable: more than half a day, so not a connection we count.