BA 2202 then U2 8285 at Gatwick
Cancún → London → Catania
Timetable, London time
09:00BA 2202 from Cancún at the gate
07:25U2 8285 to Catania leaves the gate
22 h 25 apart on the timetable, overnight
U2 8285 leaves 22 h 25 after BA 2202 arrives on the timetable: more than half a day, so not a connection we count.