Thc Detection Times In Urine 2024 Calendar. Thc is detectable in urine testing for anywhere from 3 days to 30 days or longer. The duration of thc detection in urine varies significantly among individuals and depends on several factors:

Marijuana stays in urine for up to 72 hours. Tests can detect thc in urine for up to 30 days in a heavy user who uses weed at least once per day.