So i got a wild idea in my head and figured it out because... well just because... there's no real reason that I needed to do this but i wanted to prove that i could... I tried something similar long ago i think, but this time it's more 'elegant' :)
=LOOKUP(MOD(DAY(A1)+(QUOTIENT((MONTH(A1)+IF(MONTH(A1)<3,12,0)+1)*26,10)+MOD(YEAR(A1)+IF(MONTH(A1)<
(
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