U2 8028 then U2 8013 at Gatwick
Mahón → London → Valencia
Timetable, London time
20:10U2 8028 from Mahón at the gate
17:20U2 8013 to Valencia leaves the gate
21 h 10 apart on the timetable, overnight
U2 8013 leaves 21 h 10 after U2 8028 arrives on the timetable: more than half a day, so not a connection we count.