BA 907 then BA 1498 at Heathrow
Frankfurt am Main → London → Glasgow
Timetable, London time
21:20BA 907 from Frankfurt am Main at the gate
21:00BA 1498 to Glasgow leaves the gate
23 h 40 apart on the timetable, overnight
BA 1498 leaves 23 h 40 after BA 907 arrives on the timetable: more than half a day, so not a connection we count.