2시간소요-6:00 6:30 7:00 7:30 8:00 8:20 8:40 9:00 9:30 10:00 10:30 11:00..(20분간격계속)..15:00 15:30 16:00 16:30 17:00..(20분간격계속)..21:00 22:0023
당신은 어느 그룹입니까?