DL 256 then DY 3541 at Schiphol
Boston → Amsterdam → Copenhagen
Timetable, Amsterdam time
08:15DL 256 from Boston at the gate
21:20DY 3541 to Copenhagen leaves the gate
13 h 05 apart on the timetable
DY 3541 leaves 13 h 05 after DL 256 arrives on the timetable: more than half a day, so not a connection we count.