The test is 6 hours, but if you done with the first part earlier, you must still take a1 hour break. After the break you should go on with the 2 nd part of the test.
My personal opinion, you should spend more time while reading the questions, NASD implements and include a lot of do's,do not's,and tricks in to the test, therefore when you choosed your answer , just double check it.
If you are in NY, I may sponsor you, just contact me.......