::Found it (though it maybe a stretch). In Chapter 386 (Page 11) Itachi says that the Nine-Tailed-Fox attack happened "16 years ago." And the first chapters of "Part II" (Chp. 245-250 onward) states that Naruto, Sakura, etc. were age 15 and that 2 1/2 years have passed. Also, Oro trying to get Sasuke's body was suppose to happen exactly three years from the end of "Part I"; and that happened several chapters back.