W4 6021 then FR 9045 at Barcelona
Rome → Barcelona → London Stansted
Timetable, Barcelona time
14:30W4 6021 from Rome at the gate
11:10FR 9045 to London Stansted leaves the gate
20 h 40 apart on the timetable, overnight
FR 9045 leaves 20 h 40 after W4 6021 arrives on the timetable: more than half a day, so not a connection we count.