F9 3511 then KL 272 at Atlanta
Boston → Atlanta → Amsterdam
Timetable, Atlanta time
16:00F9 3511 from Boston at the gate
15:53KL 272 to Amsterdam leaves the gate
23 h 53 apart on the timetable, overnight
KL 272 leaves 23 h 53 after F9 3511 arrives on the timetable: more than half a day, so not a connection we count.