How long would percocet show up in urine in a court drug test?

Perhaps weeks: It depends on the half life of the drug in your body. How fast you personally metabolize and excrete the drug. It can show up months later in hair analysis.

Why do you ask?: Is the Percocet prescribed to you? If not then you should not be taking it. Use of opioids is dangerous and can cause life threatening respiratory depression and death.