EW 9750 then FR 1645 at Vienna
Düsseldorf → Vienna → Rome
Timetable, Vienna time
08:50EW 9750 from Düsseldorf at the gate
06:10FR 1645 to Rome leaves the gate
21 h 20 apart on the timetable, overnight
FR 1645 leaves 21 h 20 after EW 9750 arrives on the timetable: more than half a day, so not a connection we count.