Hey, Swift, don't know if it was a typo or not, but your nameday doesn't exist. ;P
Here's how the Eorzean months(moons) work, which is a little backwards from how eras are.
1 - First Astral Moon - Halone (January)
2 - First Umbral Moon - Menphina (February)
3 - Second Astral Moon - Thaliak (March)
4 - Second Umbral Moon - Nymeia (April)
5 - Third Astral Moon - Llymlaen (May)
6 - Third Umbral Moon - Oschon (June)
7 - Fourth Astral Moon - Byregot (July)
8 - Fourth Umbral Moon - Rhalgr (August)
9 - Fifth Astral Moon - Azeyma (September)
10 - Fifth Umbral Moon - Nald'Thal (October)
11 - Sixth Astral Moon - Nophica (November)
12 - Sixth Umbral Moon - Althyk (December)
Don't confuse the order of months with the order of Eras. Months follow Astral Umbral Astral Umbral. Eras follow Umbral Astral Umbral Astral.
Here's how the Eorzean months(moons) work, which is a little backwards from how eras are.
1 - First Astral Moon - Halone (January)
2 - First Umbral Moon - Menphina (February)
3 - Second Astral Moon - Thaliak (March)
4 - Second Umbral Moon - Nymeia (April)
5 - Third Astral Moon - Llymlaen (May)
6 - Third Umbral Moon - Oschon (June)
7 - Fourth Astral Moon - Byregot (July)
8 - Fourth Umbral Moon - Rhalgr (August)
9 - Fifth Astral Moon - Azeyma (September)
10 - Fifth Umbral Moon - Nald'Thal (October)
11 - Sixth Astral Moon - Nophica (November)
12 - Sixth Umbral Moon - Althyk (December)
Don't confuse the order of months with the order of Eras. Months follow Astral Umbral Astral Umbral. Eras follow Umbral Astral Umbral Astral.