BA 371 then BA 191 at Heathrow
Toulouse → London → Austin
Timetable, London time
13:15BA 371 from Toulouse at the gate
12:10BA 191 to Austin leaves the gate
22 h 55 apart on the timetable, overnight
BA 191 leaves 22 h 55 after BA 371 arrives on the timetable: more than half a day, so not a connection we count.