MH 185 then ID 7251 at Kuala Lumpur
Kolkata → Kuala Lumpur → Surabaya
Timetable, Kuala Lumpur time
06:25MH 185 from Kolkata at the gate
19:00ID 7251 to Surabaya leaves the gate
12 h 35 apart on the timetable
ID 7251 leaves 12 h 35 after MH 185 arrives on the timetable: more than half a day, so not a connection we count.