Game Update Version 2.13
Thank you for your daily patronage of ‘MapleStory.’
There will be a maintenance conducted in the following schedule.
Maintenance Time and Date : Wednesday, May 30th, from 8:00 until 15:00 JST (That is Tuesday, May 29th from 7:00 PM until Wednesday, May 30th at 2:00 AM EDT (GMT -5))
Affected Worlds : All Worlds
Maintenance Content : Version 2.13 Update
Please be aware that you will not be able to log into the game during the maintenance.
We apologize to everyone for the inconvenience and we ask for your understanding and cooperation.
Please continue to play ‘MapleStory.’
Source : http://maplestory.nexon.co.jp/support/info/view.asp?no=712760