VA 855 then QF 1990 at Sydney
Melbourne → Sydney → Townsville
Timetable, Sydney time
16:55VA 855 from Melbourne at the gate
11:10QF 1990 to Townsville leaves the gate
18 h 15 apart on the timetable, overnight
QF 1990 leaves 18 h 15 after VA 855 arrives on the timetable: more than half a day, so not a connection we count.