The First Umbral Eras

[NoloeTazier]

I must of missed that part, it doesn't say we'll begin in the 7AE, only that it will ar--- BLAH BLAH BLAH you get the gist of what I'm going to say at this point so I'll shut up and give you the point here =^-^= ~Nyaa

It'll either be year 1 of the 7A.E. or year 5 7A.E. it depends on when they say Bahamut's destruction "stopped."

[Kayokane]

It'll either be year 1 of the 7A.E. or year 5 7A.E. it depends on when they say Bahamut's destruction "stopped."

more so how long it took to clean up the initial mess after Bahamut was teleported to his labyrinth by Louisoix.

...his devastating rampage marking the beginning of the Seventh Umbral Era. In the midst of the chaos, however, Bahamut was enveloped in a blinding white light and abruptly disappeared from the skies. None claim to have seen the primal in the five years since.

it can be any # between 1-5 but most likely 1 or 5 as you say :3 we'll have to wait for the info on the story to truly say either/or