FR 2191 then FR 120 at Dublin
Zagreb → Dublin → London Gatwick
Timetable, Dublin time
18:50FR 2191 from Zagreb at the gate
11:40FR 120 to London Gatwick leaves the gate
16 h 50 apart on the timetable, overnight
FR 120 leaves 16 h 50 after FR 2191 arrives on the timetable: more than half a day, so not a connection we count.