QF 1555 then QF 2073 at Melbourne
Canberra → Melbourne → Launceston
Timetable, Melbourne time
14:45QF 1555 from Canberra at the gate
11:50QF 2073 to Launceston leaves the gate
21 h 05 apart on the timetable, overnight
QF 2073 leaves 21 h 05 after QF 1555 arrives on the timetable: more than half a day, so not a connection we count.