15:00,15:20,15:40,16:00,16:20,16:40,17:00,17:30,18:00,18:30,19:00...21:00,21:30,22:00,22:30,23:00,23:30,24:00,00:30,01:00,01:30,02:00시차가 있습니다^^
당신은 어느 그룹입니까?