R5 271 then A3 993 at Istanbul
Amman → Istanbul → Athens
Timetable, Istanbul time
19:15R5 271 from Amman at the gate
16:45A3 993 to Athens leaves the gate
21 h 30 apart on the timetable, overnight
A3 993 leaves 21 h 30 after R5 271 arrives on the timetable: more than half a day, so not a connection we count.