I drank about 1/2 pint of liquor by 6 o'clockpm on Wednesday. Ive got to take a urine test by 9 o'clock Thursday morn. I've taken niacin also, will it show up still?

From what I understand, it's the type of test you're being given. Just a regular urine test I hear is 24 hours and if it's ETG test it's 80 hours plus... do some research

I just failed a probation/parole drug test & hadn't drank any alcohol for about 108 hours. I had drank a couple fifths of vodka during da previous week and a half, but had stopped drinking 108 hours before the piss test.