Great gadget Wint. This is exactly the type of timer I want to see created, an Elemental Affinity Timer.
The categories are very well organized. Moon Polarity is just that, Astral or Umbral and they cycle through the year in six sets. Dig it. As well as the Moon's elemental affinity. Very straight forward, twelve Gods with elemental alignment representing each of the twelve moons.
The Elemental Hour though, doesn't seem to update itself with the Eorzean hours. In fact, it seems to update rather randomly. As a result, I can't tell which elemental order you chose. After reading the Eorzean Chronology, it seemed clear that the order is:
ICE > WATER > WIND > LIGHTNING > FIRE > EARTH
And this order repeats four times per Eorzea Sun (Gametime Day). Is this your interpretation also?
Also, have you considered adding the Sun Element? With an eight sun Eorzean week, I believe the order would be the same as above for sun 1 to 6. With sun 7 and 8 representing Astral and Umbral, but the order is unclear.
Anyways, great job!