I'm looking at the Cranking FA Mult Stage 1 vs. Crank Time table on a 2011 ZO6 and I don't understand the X axis label.

The units are labeled "None (sec)"

Now I would assme that is seconds of time, but the colums go from 0 all the way up to 43,200, which seems to be WAY to much time for anything related to cranking fuel. So are these miliseconds? Or what?