SN 2556 then EC 1746 at Brussels
Warsaw → Brussels → Nice
Timetable, Brussels time
20:10SN 2556 from Warsaw at the gate
13:30EC 1746 to Nice leaves the gate
17 h 20 apart on the timetable, overnight
EC 1746 leaves 17 h 20 after SN 2556 arrives on the timetable: more than half a day, so not a connection we count.