I have been taking notes on videos, and need a relative clock function,
starting when I start the film.  Each note should start with a time stamp
HH:MM indicating the time relative to the beginning of the film.  I need to
use these notes to prepare study guides for my students.

It is probably easy to do, but I could not see an easy way to do it, in the
docs.

Thank you,

Alan

-- 
Alan Davis

"It's never a matter of liking or disliking ..."
      ---Santa Ynez Chumash Medicine Man