alt Hacker NewsISO 8601, one of the most common date notations, does have year zero. It really depends on what specific calendar you use. Gregorian calendar itself only starts at 1582, anything before that is some sort of extension.
ISO 8601, one of the most common date notations, does have year zero. It really depends on what specific calendar you use. Gregorian calendar itself only starts at 1582, anything before that is some sort of extension.