[질문] 평일당산에서 가양방면9호선급행시간좀알려주세요

이시간이후18:28/18:48/19:08/19:28/19:48/20:08/20:28/20:48/21:08/21:28/21:48/22:08/22:28/22:48/23:08/23:28/23:48/24:08/24:28/24:48