Talk:Adept's Hat/@comment-66.87.117.122-20131214115747/@comment-16215584-20131214130353

I don't think so. The Description says, Sigils and Objects will last longer.

I'm pretty sure it has the "Extends duration of equipped skills" of the Bitterblack Armor Lv.3 equipped, only having another Description. For a list of the effected Skills look here.