Hi, I Would Like To Know How Long Oxycodone And

Hi, I would like to know how long oxycodone and hydrocodone stay in your system. I am prescribed both. I have an appointment with my pain clinic appointment tomorrow and am down to 1 oxycodone and 2 hydrocodone pills. I would very much like to take them as prescribed early today as I am in severe pain, but want to make sure they are in my system for my drug test tomorrow morning. As it is now I would wait and take my oxycodone at 5pm and my hydrocodone at 3am and 7am.
Thank you