KL 972 then HV 6867 at Schiphol
Grimsby → Amsterdam → Athens
Timetable, Amsterdam time
11:55KL 972 from Grimsby at the gate
07:00HV 6867 to Athens leaves the gate
19 h 05 apart on the timetable, overnight
HV 6867 leaves 19 h 05 after KL 972 arrives on the timetable: more than half a day, so not a connection we count.