A3 994 then HH 576 at Istanbul
Athens → Istanbul → Tashkent
Timetable, Istanbul time
21:00A3 994 from Athens at the gate
19:20HH 576 to Tashkent leaves the gate
22 h 20 apart on the timetable, overnight
HH 576 leaves 22 h 20 after A3 994 arrives on the timetable: more than half a day, so not a connection we count.