LS 3170 then U2 865 at Gatwick
Barcelona → London → Glasgow
Timetable, London time
10:50LS 3170 from Barcelona at the gate
10:15U2 865 to Glasgow leaves the gate
23 h 25 apart on the timetable, overnight
U2 865 leaves 23 h 25 after LS 3170 arrives on the timetable: more than half a day, so not a connection we count.