QR 21 then FR 557 at Manchester
Doha → Manchester → Dublin
Timetable, Manchester time
06:00QR 21 from Doha at the gate
18:15FR 557 to Dublin leaves the gate
12 h 15 apart on the timetable
FR 557 leaves 12 h 15 after QR 21 arrives on the timetable: more than half a day, so not a connection we count.