depends how much u smoke..but average is 32-38 days 2 months however is a good safety zone..especialy when it comes to probation if the risk is jail..its best to assume 2 months and be sure your completely clean also..just being near smoking can cause u to fail you can appear clean in 2 weeks or less however with some precautions, like diluting urine (guzzle as much water as possible) and using garlic and goldenseal to clean your system also vinagar cleans u out fast as well, but maybe detectable
I had to quit this past summer for a piss test at a probation office. I was a heavy smoker (weed only) for a couple years before I quit for the test. I stopped cold turkey, and passed the piss test less than a month later. I think it was 29 maybe 30 days. I have a good maybe a little above average metabolism and I diluted my piss on the way to take the test. Other than that I didn't do anything in terms of cleansing pills of any weird drinks. So I'd say a month with exercise will do the trick. -Mike