Application Deadlines explained

Regular Deadline: Regular deadline for majority of students, usually in January/February

Priority Deadline: Early date by which applications given the most consideration by the University, usually November 1 or November 15

Early Action Deadline: You will both apply earlier than the regular deadline and find out earlier whether or not you got accepted. The most common deadlines for early action are November 1 and November 15 

Early Decision Deadline: This deadline is earlier, usually November 1 or 15 and you can only apply to one University for ED. It is binding, if you are accepted, you are committed to their University