EK 238 then HY 3254 at Dubai
Boston → Dubai → Moscow Vnukovo
Timetable, Dubai time
19:20EK 238 from Boston at the gate
12:00HY 3254 to Moscow Vnukovo leaves the gate
16 h 40 apart on the timetable, overnight
HY 3254 leaves 16 h 40 after EK 238 arrives on the timetable: more than half a day, so not a connection we count.