FR 121 then FR 4518 at Dublin
London Gatwick → Dublin → Athens
Timetable, Dublin time
20:05FR 121 from London Gatwick at the gate
18:20FR 4518 to Athens leaves the gate
22 h 15 apart on the timetable, overnight
FR 4518 leaves 22 h 15 after FR 121 arrives on the timetable: more than half a day, so not a connection we count.