Click the pencil icon (not pictured) and then providers on the left-hand side (also not pictured) and then find yourself
On the right-hand side of your profile, scroll down to "service provider's special days"
Click "customize special days"
Find the specific day you want to modify
Select the time frames you want to open up
If you want to add a meeting outside of the exhibit hours, follow the previous steps and then add the meeting to your calendar by double clicking the day (...you know dinner meetings and stuff)
Fill in the meeting details including client (the university contact)
And service provider...yourself