But not every 100 years except every 400 years so year 2000 is a special case which caused a bunch of issues: https://en.wikipedia.org/wiki/Year_2000_problem#Af

But not every 100 years except every 400 years so year 2000 is a special case which caused a bunch of issues: https://en.wikipedia.org/wiki/Year_2000_problem#After_January_2000 https://en.wikipedia.org/wiki/Year_2000_problem#After_Januar...