U2 712 then FR 555 at Manchester
Belfast City → Manchester → Dublin
Timetable, Manchester time
08:55U2 712 from Belfast City at the gate
06:00FR 555 to Dublin leaves the gate
21 h 05 apart on the timetable, overnight
FR 555 leaves 21 h 05 after U2 712 arrives on the timetable: more than half a day, so not a connection we count.