U2 2104 then U2 703 at Manchester
Nice → Manchester → Belfast International
Timetable, Manchester time
21:30U2 2104 from Nice at the gate
11:55U2 703 to Belfast International leaves the gate
14 h 25 apart on the timetable, overnight
U2 703 leaves 14 h 25 after U2 2104 arrives on the timetable: more than half a day, so not a connection we count.