title: Index movie duration
body: <p>I'm trying to figure out how I'm intended to store my movies duration field (e.g. 02:20:13 for a movie that is 2 hrs, 20min, and 13 sec long) so that users searching the index can facet on movie duration. </p>
  
  <p>Like in the facet they can select from 01:00:00 to 02:00:00 for movies that are between 1 to 2 hours long. I tried to store duration as a DateTime value and have that indexed but that includes dates which don't seem relevant to what I'm trying to achieve. </p>