EI 403 then FR 30 at Dublin
Rome → Dublin → London Stansted
Timetable, Dublin time
13:35EI 403 from Rome at the gate
06:55FR 30 to London Stansted leaves the gate
17 h 20 apart on the timetable, overnight
FR 30 leaves 17 h 20 after EI 403 arrives on the timetable: more than half a day, so not a connection we count.