FR 559 then FR 306 at Dublin
Manchester → Dublin → London Gatwick
Timetable, Dublin time
21:05FR 559 from Manchester at the gate
20:40FR 306 to London Gatwick leaves the gate
23 h 35 apart on the timetable, overnight
FR 306 leaves 23 h 35 after FR 559 arrives on the timetable: more than half a day, so not a connection we count.