[mason55]

No, because there was no year zero. The first century started in the year 1 AD.

[labster]

There was an astronomical year zero, it’s mainly historians who don’t want the year zero to happen.

[croemer]

And there is a year zero in the ISO 8601:2004 system, the interchange standard for all calendar numbering systems (where year zero coincides with the Gregorian year 1 BC; see conversion table). [via Wikipedia]