Originally Posted by
Veloran
To start with we have Gosetsu coming to Eorzea, two months. We then have the trip to the Far East which is two months, but then Carvallain basically says he's going to make a round trip with all the goods he's picked up and come back afterwards. So that's at least four months of the Scions doing the Doma thing and him sailing around before he picks everyone up again, and it is indeed his ship seen doing so. Then that's another two months back. Then Y'shtola books passage there on her own, another two months. Setting aside the probability of the twins also having there again in 5.2, around this time the Doman refugees also travel back by boat, another two months. And then Alphinaud's body is necessarily shipped back over another two months. And then, because for some reason it was written this way, another two months for Tataru to sail back, which was after Alphinaud had already arrived at the Rising Stones.
That's like 12-18 months of boating just from the beginning to end of Stormblood depending on how you count it. And I'm pretty sure I've missed quite a bit, without even getting into other stated passages of time or side content.