FR 9612 then FR 142 at Dublin
Rome → Dublin → London Gatwick
Timetable, Dublin time
13:20FR 9612 from Rome at the gate
11:20FR 142 to London Gatwick leaves the gate
22 h apart on the timetable, overnight
FR 142 leaves 22 h after FR 9612 arrives on the timetable: more than half a day, so not a connection we count.