On January 1st, 2020, my Lifetime Years incremented by one. In March, 2020 my lifetime years incremented a second time. At that point, I had 1 more Lifetime year than I should have had. I did attain LTG in 2020. In early 2021 Lifetime Years did not increment again so I figured it had balanced itself out.
Today my Lifetime Years incremented again. The best I can tell is that it is for 2021 since I had two years added in 2020. In about two weeks, I will attain AE status & then by the end of the month, I will cross 600 nights. If neither of those trigger another Lifetime Year then the increment today was for 2021.
James