I would say no more than like 3 - 4 days.. I have to say it depends on the person... When I was being drug tested once a week I also took 4 hits a week after every test and came out clean the next week again and 4 hits would actually get me high because of tolerance being so low. but ive seen some other ppl do this and fail.. So i would say some ppl are different and get thc out of thier body faster than other ppl do.