How long does it take for oxycontin to not show up in a urine test?

oxycodone is not an opiate ...i kno it sounds strange but it is an opiod..which is a synthetic opiate . an opiate consists of heroin,morphine,an codiene oxycodone has zero morphine levels an oxycodone is very hard to detect because it has 100 nl/ml which makes it nearly impossible to detect unless its a special test that is testin for especially for that. I know because i have taken drug tests after takin them an past for an opiates hope this helps someone