I apologize we are still setting up the calendar for a more user friendly mode of viewing these courses. but yes they are at a certain time and that is in the desciption for each class in dark green
main shopping cart page
http://www.sbbytes.com/x-cart/customer/home.php?cat=8
above **click on 'see details'....** and Our Price
here is an exerpt,...
"Making Your Words Worthwhile
Brush up on your writing skills in this four week in depth study of journaling with DTM LeeAndra!
Tuesday, August 24, 2004; 8:30pm EST."
When clicking on this to view it's details you will see that this is a 4 week course as all the $20 courses are. and you would need to be available for 4 tuesdays from aug 24th at 8:30 pm est however if you are unable to make every course there will be a way for you to get what you missed and prepare before the next class.
Tanya