Rated 5 out of 5 stars

Thanks for looking into the calculations!!!
I noticed it has been fixed in the Display Notification Preview, but not yet in the Sun Colt Calendar Window.
Thanks your your prompt reply and solution.

This review is for a previous version of the add-on (1.3.20111118.1-signed).  This user has a previous review of this add-on.

Good spot.
I'll fix it soon...

UPDATE 2012-03-05: Now fixed and available in a new release - 1.3.20120301