Less than 15 days.
smoking it only once, it will completely leave your system within a week of smoking
it stays in your system for 2 to 3 months, depending how much you smoked.
couple of days
a week
Doesn't matter how long since you last smoked. Weed stays in your system from 2 weeks to a month.
3 days max
3 days
It's traceable for weeks, maybe months, by professionals.
If you were a daily smoker, up to 6 months.
a month if you dont smoke all the time but if you smoke alot then it could take up to two months
There are many ways to get weed out of your system, there are cleansing pills that get it out of your system water also helps, but pretty much its all luck.
Weed can stay in your system up to 90 days. It's all dependent on your metabolism, body fat, etc.