BA 1497 then VS 3 at Heathrow
Glasgow → London → New York JFK
Timetable, London time
09:35BA 1497 from Glasgow at the gate
09:05VS 3 to New York JFK leaves the gate
23 h 30 apart on the timetable, overnight
VS 3 leaves 23 h 30 after BA 1497 arrives on the timetable: more than half a day, so not a connection we count.