Thanks for the prompt reply Tom. I have a number of unit tests that test the business time duration functionality. The unit test class as well as the new BusinessTime class (that contains the methods used to calculate the business time duration) are ready for review/ contribution. I will email you to obtain further instructions. Regards, Steven View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4078597#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...