FR 21 then FR 822 at Dublin
Newcastle → Dublin → Edinburgh
Timetable, Dublin time
23:55FR 21 from Newcastle at the gate
23:50FR 822 to Edinburgh leaves the gate
23 h 55 apart on the timetable, overnight
FR 822 leaves 23 h 55 after FR 21 arrives on the timetable: more than half a day, so not a connection we count.