User blog comment:IamJakuhoRaikoben/Chapter 393: Silver Memories, Review./@comment-24784846-20140717171813/@comment-7418318-20140717182032

What do you mean with setting? The time-frame?

For Zero that's 112 years before the current story and Trail of Ice is at some unspecified point after Ur's sacrifice, but before Gray arrives at Fairy Tail, which leaves a time-frame of two years if I'm not mistaken, between X774 and X776, since he was already in Fairy Tail when Erza arrived eight years before FT started.