Finals are, generally speaking, of slightly longer length than all previous unit tests. A rough guide is most final exams are twice as long as the unit exams. Still, plan ahead to allow yourself ample time to complete it. Be sure you plan to take your final exam BEFORE the due date, it is weighted and is worth a significant number of points. Some A-G students need to take a final written test as well as the computer scored final exam, so be sure to plan ahead and allow time for both.
Don't forget to use all of your Re-Take passes BEFORE you take the final exam. Once you have taken the final exam, you cannot use any passes.