The Gregorian calendar is superior to the Julian calendar because it better accounts for the actual duration of the Earth's orbit around the sun.

“It's a kind of a whole complicated system, but we still use this today because it's okay. It's better than the Julian calendar.”

The choice of January 1st as the beginning of the year is an administrative decision rather than one based on natural or seasonal cycles.

“So basically the reason why it's the first of January, it's um it's admin. It's admin is the father of this modern holiday.”