The downtime will be happening from 5:00 a.m. PDT / 8:00 a.m. EDT until 11:00 a.m. PDT / 1:00 p.m. EDT. Unlike previous weeks, there are no additional "special" battlegroups that are being taken offline for an extended period.
If there are unexpected going ons with this maintenance, you'll see additional information posted here. And for those of you wondering, we're not expecting Patch 3.2 to drop just yet.
Pic for this article is unrelated, but I wanted an excuse all day to use it – and now seemed like the right opportunity.