EK 571 then PK 204 at Dubai
Kolkata → Dubai → Lahore
Timetable, Dubai time
13:00EK 571 from Kolkata at the gate
07:10PK 204 to Lahore leaves the gate
18 h 10 apart on the timetable, overnight
PK 204 leaves 18 h 10 after EK 571 arrives on the timetable: more than half a day, so not a connection we count.