FR 341 then FR 1978 at Dublin
London Luton → Dublin → Lodz
Timetable, Dublin time
21:25FR 341 from London Luton at the gate
16:20FR 1978 to Lodz leaves the gate
18 h 55 apart on the timetable, overnight
FR 1978 leaves 18 h 55 after FR 341 arrives on the timetable: more than half a day, so not a connection we count.