Having an appt is a game changer for sure. If you do not have an appt go in around 4pm or whenever they last allow people in. That is when most of the windows are open and the line moves much faster.
The best time is when you have an appointment. Otherwise, you will end up waiting for at least 3 hours if you just walk in at any time of the week. You can schedule an appointment on their website. https://dmvnv.com/dashpass.htm
Thanks! Your answer is awaiting moderation.