U2 8638 then U2 8307 at Gatwick
Munich → London → Milan
Timetable, London time
16:55U2 8638 from Munich at the gate
12:15U2 8307 to Milan leaves the gate
19 h 20 apart on the timetable, overnight
U2 8307 leaves 19 h 20 after U2 8638 arrives on the timetable: more than half a day, so not a connection we count.