Originally Posted by Jennifer
Ha, that actually flew right over my head. You're right that the modern calendar starts at 1 AD. ...
Looks like you live in the wrong century.
The modern calendar as defined in ISO 8601 does have the year 0 (which incidentally is what people stuck in the distant past would call 1 BC.)
Of course that ISO standard is from 1988, so a point could be made that Doc couldn't have known about it.
But since that is the only form of a calendar that coincidences with modern dates and allows to give a date to any day in the history, he might have been an early adopter.
(Especially as all you have to do is not
implementing special handling for calendar changes)