Build Sheet/Build Date Questions

[-=Jeff=-]

okay I had gotten a build Sheet for my car from the NCM..

the Date shows 90/016 and the time is 6:56

now I assumed that was the 16th day of 1990 which was a Tuesday, but while I was working on the seats I got with the car I found some tags with dates.. One of the seats had a label Jan 24 1990, color was listed as flame red. now my car was born flame red and some owner along the way changed it to black. I found that the rear seat shells were painted black from the red, as it was a quick/poor job. So my best guess is the seats were built or delivered around that date and I am thinking the seats are original.

So here are my questions:

is it possible the 90/016 is the 16th weekday of 1990? which would move the build to 1-22-1990

Also how long did it take to build a C4 start to finish in 1990?

Who else can I bug for this information