
Lot of characters use "summers" as their time measurement as well for years. One of mine does that (as in, "I've been in Eorzea proper for at least three summers now") and there's an NPC in... Costa, I think, that uses it as "I've been around for fifty summers and I know how to make a lady smile" or however he says it. Kind of an alternate to how you'd say years, depending on your character.