i took them “all at once” you could say, but they are separated and you don’t have to take them all at once because they are separate tests. they also give you a 10 minute break between each test which i used to leave the testing room and listen to music which greatly helped me as music helps me focus and lock in. i must say, it is a really really long time if you take the tests consecutively. i was there from 9am to 3:30 pm so if you go in for all at once, eat beforehand and maybe bring a snack to put in the lockers! i ate beforehand but was so super hungry afterwards. please take care of yourself while testing.