User blog comment:Mr. Xemnas/What year does 616 take place?/@comment-5473242-20130330022714/@comment-1751305-20130330034356

It does make sense. The 60's events move slower, so that characters can actually age. Otherwise Peter would still be 15. The comics released within the last four years would presumably be time-slided into 2013, the four years before that into 2012, the four before that 2011, etc.