FR 15 then FR 2614 at Athens
London Stansted → Athens → Katowice
Timetable, Athens time
21:45FR 15 from London Stansted at the gate
18:00FR 2614 to Katowice leaves the gate
20 h 15 apart on the timetable, overnight
FR 2614 leaves 20 h 15 after FR 15 arrives on the timetable: more than half a day, so not a connection we count.