See also: After Hours Trading, Premarket Trading, & NNDM Quote. Investors may trade in the Pre-Market (4:00-9:30 a.m. ET) and the After Hours Market (4:00-8:00 p.m. ET). Participation from Market Makers and ECNs is strictly voluntary and as a result, these sessions may offer less liquidity and inferior prices.
So, we call this approximate calculation as half life. If you have smoked marijuana then the drug will stay for 3 to 30 days. This is normal for the common drugs. But in the case of marijuana, this can be detected even after a month in Urine drug test marijuana.Marijuana will stay in your system for 10 days if you have been smoking occasionally.If it is smoked on regular basis it will be there up to 45 days and if you smoke constant pace then it will be in the system for as long as 90 days. http://clnk.me/1yc0I.o, we call this approximate calculation as half life. If you have smoked marijuana then the drug will stay for 3 to 30 days. This is normal for the common drugs. But in the case of marijuana, this can be detected even after a month in Urine drug test marijuana.
Marijuana has a half-life in your system. How long it takes to leave your system depends on how much you smoke. But the time maxes out at around 45 days. One smoking session for someone with a clean system takes about 3-4 days to be clean.