FR 6839 then EI 3617 at Manchester
Prague → Manchester → Belfast City
Timetable, Manchester time
17:25FR 6839 from Prague at the gate
13:45EI 3617 to Belfast City leaves the gate
20 h 20 apart on the timetable, overnight
EI 3617 leaves 20 h 20 after FR 6839 arrives on the timetable: more than half a day, so not a connection we count.