This phrase can be translated to "Who could it be at this hour?" and you can hear this phrase in Korean dramas in situations where someone is visited by another person very late at night or gets an unexpected phone call either very late or very early. 이 = this시간 = time, moment-에 = at누구 = whoThanks for studying with us!Shop for Korean textbooks, e-books, clothes, and more!http://MyKoreanStore.comWrite sentences. Get corrections from native speakers. Be awesome.http://Harukorean.com/