It is important to figure out the starting/ending dates of each semester at the university you choose because you will normally want to plan a few weeks ahead to hire an intern. If you plan on offering an internship for academic credit then you also need to take into account the dates for the students to register for classes. This is because students need to register for an actual class if they want to receive academic credit for their internship. For example, if you wanted to post an internship in the spring for academic credit, then you would need to do so before the spring class registration period end.
Knowing the length of a typical internship at a university lasts will also help you when you are designing the internship program. This way when you hire an intern, you will be able to gauge how much work the intern will be able to do for you and incorporate that into the job description. The last thing you want to do is plan on your intern completing a set amount of work and then realize that the internship won’t last long enough for it to be completed.