FR 893 then FR 7542 at Manchester
Knock → Manchester → Barcelona
Timetable, Manchester time
15:10FR 893 from Knock at the gate
07:40FR 7542 to Barcelona leaves the gate
16 h 30 apart on the timetable, overnight
FR 7542 leaves 16 h 30 after FR 893 arrives on the timetable: more than half a day, so not a connection we count.