<p>No. </p>
<p>CalSO is a program for admitted students that takes place over the summer. It includes orientation, meeting with advisors and registering for your first semester classes.</p>
<p>Cal Day is in a couple of weeks, before the deadline to choose a school. It is a huge event open to the local community, to students, to alumni, to prospective students, to parents, with something for everyone. </p>
<p>In addition to these two, which are sometimes confused, there are the overnight stay programs that allow students to spend a night at Cal, ask questions, meet students, drop into live classes, with the aim of helping them make that decision of which university they will attend come fall. One of the overnight program dates is the evening before Cal Day, thus one could combine the two, but neither of those are a substitute for CalSO. Students who already know they want to attend Cal may not go to Cal Day or the overnight programs, but they too will go to CalSO.</p>