Dunkaccino and time

Remember that "Dunkaccino" commercial from the end of Jack and Jill?  The Adam Sandler character (I assume his name is Jack) says the commercial is 32 seconds long.  But it's clearly 49 seconds long.  You can look at the timer on YouTube.

Are we to assume the version of the commercial we (the viewers) see is not representational of what the characters in the movie see?  Do we experience the passage of time in different ways?  Or did the editors of Jack and Jill simply not bother with details like making the clip exactly 32 seconds?

I looked for answers in the YouTube comments section.  A commenter named Kraine wrote: "that wasn't 32 seconds."  Exactly, Kraine!  But what does it mean?