Board Thread:General Discussion/@comment-24304025-20140602194616/@comment-15736398-20140603203851

I don't see why it's so disconcerting that in-universe time isn't in sync with out-of-universe time, but that's beside the point.

Getting back to the discussion of Henry's age, I don't think it's out of the question for Regina to have listed a different birthdate on his certificate of adoption than was on his birth certificate, as evidence points to him having been born in November or December but celebrating his birthday in late July/early August (since he was already 10 by the time Snow gave him the storybook, which we know happened in August of 2011 - two months before he took off to go find Emma).