FR 6839 then FR 1917 at Manchester
Prague → Manchester → Dublin
Timetable, Manchester time
16:40FR 6839 from Prague at the gate
08:30FR 1917 to Dublin leaves the gate
15 h 50 apart on the timetable, overnight
FR 1917 leaves 15 h 50 after FR 6839 arrives on the timetable: more than half a day, so not a connection we count.