GOULI,
and others.
Given that I have the "pleasure " (sorry, lets call it "insurance") to work for a company that has an alcohol test mandated before commencing EVERY duty (due to a major "indiscretion" by "ex" colleagues last year ) lets try to get some figures straight here.
A Bottle (750ml ) of wine at 14.5% takes 10.9 hrs to eliminate from the body from 1st sip (regardless of other factors such as BMI/ weight/ sex or whatever. Poncy French wine "@ 12% only needs 9hr. A 500ml glass of Beer at 6% = 3hr.
Don't drink spirits, so I haven't done the Maths, but, I do the calculations on a fairly regular basis for the Vino Collapso, as I like to drink it , & don't wanna get busted/sacked. . . all you need to know is "out there" on t'internet, use & respect to enjoy both your tipple & your job
Use this, timing from 1st sip, to keep your conscience clear & your licence intact
http://www.cleavebooks.co.uk/scol/ccalcoh2.htm