Source: http://bbs.black.game.daum.net/gaia/do/black/notice/read?bbsId=BN001&articleId=388
Black Desert has just announced that this weeks maintenance will be a day late and will instead be on Friday, 29th May. Delays are due to them releasing the Wizard/Witch class with this update. The maintenance will last 5 hours and be between 7AM and 12PM (UTC+9).
