FR 612 then FR 156 at Dublin
Killarney → Dublin → Leeds
Timetable, Dublin time
11:30FR 612 from Killarney at the gate
11:20FR 156 to Leeds leaves the gate
23 h 50 apart on the timetable, overnight
FR 156 leaves 23 h 50 after FR 612 arrives on the timetable: more than half a day, so not a connection we count.