U2 8390 then EC 8313 at Gatwick
Montpellier → London → Milan
Timetable, London time
19:05U2 8390 from Montpellier at the gate
18:35EC 8313 to Milan leaves the gate
23 h 30 apart on the timetable, overnight
EC 8313 leaves 23 h 30 after U2 8390 arrives on the timetable: more than half a day, so not a connection we count.