Whickerman, no, there wasn't a Year 0. Counting starts atzero but not withzero.
A batsman starts with 0 runs and, at the end of his first run, he has scored 1, not zero. At the end of his 99th run he starts on his 100th, but he has not reached a century until he has completed that 100th run.
Similarly our calendar started at zero but the first second, minute, hour and day were the first second, minute, hour and day of the 1st Century. That century was not complete until the end of its 100th year.
I'm amazed that this tedious "argument" still continues.