FR 5307 then FR 7121 at Dublin
Killarney → Dublin → Tenerife South
Timetable, Dublin time
18:50FR 5307 from Killarney at the gate
15:30FR 7121 to Tenerife South leaves the gate
20 h 40 apart on the timetable, overnight
FR 7121 leaves 20 h 40 after FR 5307 arrives on the timetable: more than half a day, so not a connection we count.