Board Thread:Questions and Answers/@comment-25422312-20140915034820/@comment-5398287-20140915035939

Generally, they release Wednesdays at around 3 AM on the West Coast and 6 AM on the East Coast. However, both scanlation groups have been known to release on Tuesdays and Thursdays instead, and they generally release it earlier hours-wise if another member of the Big 3 (Naruto or One Piece) is on break for that week, so it's not an exact science. Hope that helps.