> inconsistent rule Imho, it is not inconsistent and it is not a rule. It is a fact (as long as one uses the Gregorian calendar where there is no year zero[1])

> inconsistent rule Imho, it is not inconsistent and it is not a rule. It is a fact (as long as one uses the Gregorian calendar where there is no year zero[1]). [1] http://en.wikipedia.org/wiki/0_%28year%29 http://en.wikipedia.org/wiki/0_%28year%29