[질문] s"시간과소요시간

소요시간: 1시간 / 06~07:00,15,30,45 08:00,15,30,40,50 09:00,10,20,30,45 10:00,10,20,30,45 11~18:00,15,30,45 19:00,10,20,30,45 20~22:00,15,30,45