QF 428 then QF 2121 at Sydney
Melbourne → Sydney → Griffith
Timetable, Sydney time
11:00QF 428 from Melbourne at the gate
06:05QF 2121 to Griffith leaves the gate
19 h 05 apart on the timetable, overnight
QF 2121 leaves 19 h 05 after QF 428 arrives on the timetable: more than half a day, so not a connection we count.