FR 819 then FR 1030 at Dublin
Edinburgh → Dublin → London Gatwick
Timetable, Dublin time
16:55FR 819 from Edinburgh at the gate
13:30FR 1030 to London Gatwick leaves the gate
20 h 35 apart on the timetable, overnight
FR 1030 leaves 20 h 35 after FR 819 arrives on the timetable: more than half a day, so not a connection we count.