FR 7543 then FR 7546 at Manchester
Barcelona → Manchester → Poznan
Timetable, Manchester time
13:10FR 7543 from Barcelona at the gate
06:45FR 7546 to Poznan leaves the gate
17 h 35 apart on the timetable, overnight
FR 7546 leaves 17 h 35 after FR 7543 arrives on the timetable: more than half a day, so not a connection we count.