EI 3253 then FR 120 at Dublin
Edinburgh → Dublin → London Gatwick
Timetable, Dublin time
13:40EI 3253 from Edinburgh at the gate
11:40FR 120 to London Gatwick leaves the gate
22 h apart on the timetable, overnight
FR 120 leaves 22 h after EI 3253 arrives on the timetable: more than half a day, so not a connection we count.