Re: How long till weed exits the system (thc)
It depends on the means of ingesting. I'm presuming you smoked it so abut 2-3 weeks for it to be cokmpletely gone.* The lenght of time it remains in your system depends on how you ingested. With eating it can remain as long as 2 months.
*However you should be able to pass a drug test a week later. If you mean for how long until you are completely sober, about 90 minutes.