Ours is May 1st to May1st. This happen to me the first year I was eligable for personal days. I got a sepretate check for the 2 optionals not used. (I didn't even know opt. days existed).
I'm actually waiting for to see if I get a check this month, since I applied for an optional day earlier this year and it was granted, but I didn't get paid for it. I work tues.-sat. I took it on a saturday and the supervisor "forgot" to put it in. Becuase "saturday is a non operating day" was her excuse.