Ashley,
Clarizen makes a distinction between resource availability and default work day hours. In the former, your resource is only available to work on a project for 75% of the time. This will not change the default work day hours (8) in a project.
If you would like to change the amount of default work day hours for this particular user, you can change this setting in the user's properties (Settings -> User Management -> choose Properties -> right click on Resource -> choose Properties -> choose Calendar tab -> Schedule Settings -> Adjust work day hours accordingly).
If you would like to change the amount of default work day hours for an entire project, you can change this setting in the project's properties (right click on the project -> choose Properties -> choose Calendar tab -> Schedule Settings -> Adjust work day hours accordingly).
[quote=Ashley Hoyt]Hi,
For one of our resources, I changed his availability from 100% to 75%. However, when he is building his projects, the default work hours for 1 day is still 8 hours? Is this a bug?
Thanks!