Talk:Princess Twilight Sparkle - Part 2/@comment-3410511-20131203161726/@comment-26113331-20131205151747

Unfortunately, it seems episodes are not in a chronological order. The Summer Sun Celebration from S4 takes place exactly a year the one from S1 because Celestia says it'll be the first time it celebrates the return of Luna. But in-between, there were 2 winter-themed episodes (Winter Wrap-Up and Hearts' Warming Eve) which proves they're not in order.