DY 5502 then DY 4459 at Arlanda
Barcelona → Stockholm → London Gatwick
Timetable, Stockholm time
18:25DY 5502 from Barcelona at the gate
18:20DY 4459 to London Gatwick leaves the gate
23 h 55 apart on the timetable, overnight
DY 4459 leaves 23 h 55 after DY 5502 arrives on the timetable: more than half a day, so not a connection we count.