EI 3257 then FR 156 at Dublin
Edinburgh → Dublin → Leeds
Timetable, Dublin time
17:40EI 3257 from Edinburgh at the gate
14:55FR 156 to Leeds leaves the gate
21 h 15 apart on the timetable, overnight
FR 156 leaves 21 h 15 after EI 3257 arrives on the timetable: more than half a day, so not a connection we count.