strip NC

...this may have already been covered but, i still need help. i bought some "strip NC" (it was recommended) for an upcoming drug test. only...i don't know when would be the best time to use it. if i have a drug test at 9AM on any particular day they choose, when should i eat the 4 pills and drink the orange solution? the directions on the box are quite vague. i smoke pot at least once a day so, should i take something else? and should i take a vitamin for color as well? i know i'll have to pass a THC exam before i get hired. or maybe sometime after i get hired. i'm not postive for sure about "when" it is. i only know it's going to happen...it's just pot for christ sake!

Ole