BA 636 then EW 2685 at Athens
London Heathrow → Athens → Stuttgart
Timetable, Athens time
19:00BA 636 from London Heathrow at the gate
11:40EW 2685 to Stuttgart leaves the gate
16 h 40 apart on the timetable, overnight
EW 2685 leaves 16 h 40 after BA 636 arrives on the timetable: more than half a day, so not a connection we count.