FR 7138 then EC 8512 at Lisbon
Dublin → Lisbon → London Gatwick
Timetable, Lisbon time
20:05FR 7138 from Dublin at the gate
16:20EC 8512 to London Gatwick leaves the gate
20 h 15 apart on the timetable, overnight
EC 8512 leaves 20 h 15 after FR 7138 arrives on the timetable: more than half a day, so not a connection we count.