You don't have to wait the day of. You can get a pass online. When you do it online the pass is good for a week. When you come to 715 gate ask the guard for a QR code. You use your phone to scan the code. Once the page comes up hit visitors pass and fill in all your information it ask for. When you get to the end just close it out. It will say to wait on a email. You don't have to wait on a email. So don't panic if you don't get one. Once you've closed it out the process is already done. When you go to the gate let the guard know you did it online an he will then ask for your drivers license so he scan the baroda on the back. Your picture should show up. If all is good you will have access to the base. Like I said before when you do it online your pass is good for a week.
I don't know how early you can get a pass for a specific day but I know you can go the day of and get a pass.
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