FR 6958 then FR 1957 at Manchester
Killarney → Manchester → Dublin
Timetable, Manchester time
16:00FR 6958 from Killarney at the gate
09:00FR 1957 to Dublin leaves the gate
17 h apart on the timetable, overnight
FR 1957 leaves 17 h after FR 6958 arrives on the timetable: more than half a day, so not a connection we count.