FR 4777 then FR 553 at Manchester
Shannon → Manchester → Dublin
Timetable, Manchester time
13:45FR 4777 from Shannon at the gate
06:00FR 553 to Dublin leaves the gate
16 h 15 apart on the timetable, overnight
FR 553 leaves 16 h 15 after FR 4777 arrives on the timetable: more than half a day, so not a connection we count.