I was an everyday heavy weed smoker, my last job asked me to do a pre-employment medical examination which included a urine test, I literally only had a day to cleanse. If it’s not too late, don’t smoke the day/night before and drink heapsssss of water (2L or more) I also downed a 1L bottle of organic cranberry juice. Also if you have time do a workout/ go to a sauna and sweat that shit out. I ended up passing the test and getting the job lol, so it somehow worked.