Bug in Blog Calendar

I personally think calendars are unintuitive way to surf the web, but everybody seems to be using them to navigate blogs. Anyway, here are the blog calendars for the months of September and October.

October 2001 . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 . . .

September 2001 . . . . . . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Oops, I just noticed a defect in the Kamat Blogging Engine! September 30th is missing from action in the above calendar