Secret lore time: AD is made up bullshit. Chriggers will try to tell you that's the "real dating system". It's not. The reason this is the year 2025 is because it's the 2,025th year that the sun has risen in the constellation Pisces. Chriggers are still using the old pagan calendar and lying about it.

https://en.wikipedia.org/wiki/Astrological_age?useskin=vector#Age_of_Pisces_(Piscean_Age)