DY 3513 then DY 5511 at Copenhagen
London Gatwick → Copenhagen → Barcelona
Timetable, Copenhagen time
14:05DY 3513 from London Gatwick at the gate
11:35DY 5511 to Barcelona leaves the gate
21 h 30 apart on the timetable, overnight
DY 5511 leaves 21 h 30 after DY 3513 arrives on the timetable: more than half a day, so not a connection we count.