U2 8286 then U2 8313 at Gatwick
Catania → London → Milan
Timetable, London time
20:45U2 8286 from Catania at the gate
19:55U2 8313 to Milan leaves the gate
23 h 10 apart on the timetable, overnight
U2 8313 leaves 23 h 10 after U2 8286 arrives on the timetable: more than half a day, so not a connection we count.