FR 559 then FR 255 at Dublin
Manchester → Dublin → London Stansted
Timetable, Dublin time
15:10FR 559 from Manchester at the gate
08:30FR 255 to London Stansted leaves the gate
17 h 20 apart on the timetable, overnight
FR 255 leaves 17 h 20 after FR 559 arrives on the timetable: more than half a day, so not a connection we count.