EC 8306 then U2 8497 at Gatwick
Milan → London → Geneva
Timetable, London time
13:45EC 8306 from Milan at the gate
11:15U2 8497 to Geneva leaves the gate
21 h 30 apart on the timetable, overnight
U2 8497 leaves 21 h 30 after EC 8306 arrives on the timetable: more than half a day, so not a connection we count.