Board Thread:Chapter and Episode Discussions/@comment-4704473-20141106114903/@comment-25632268-20141106220109

Elveonora wrote: We don't know exactly how long the timeskip of chapter 700 is, but The Last takes place 2 years after 699 and if Kishi follows parallels, then Naruto's children should be about the same age as he was in Chapter 1,

Bolt may be, but Himawari is younger, she refers to her brother as "big" so he must be older than her.