FR 338 then FR 2192 at Dublin
London Luton → Dublin → Zagreb
Timetable, Dublin time
20:55FR 338 from London Luton at the gate
17:50FR 2192 to Zagreb leaves the gate
20 h 55 apart on the timetable, overnight
FR 2192 leaves 20 h 55 after FR 338 arrives on the timetable: more than half a day, so not a connection we count.