Twins born right near midnight could have different birthdays

TIL they never had a year 0. So the whole damn calendar is an off by one error 🤯

Seems easier to be like everyone else and just say it starts at 0 and just accept the first millennium is missing a year.

Wow I learned something new. I had to search it after reading your comment and it is indeed 2001. https://www.timeanddate.com/counters/mil2000.html