title: Run Cron at Minute 0 of Specific Hour Set
body: <p>What I'm trying to do is run a Cron job at specific hours such as 1,9,13,16 but only once for each of those hours. Setting it up every few hours doesn't work for me because it needs to be at specific hours.</p>
  
  <p>This is what I'm currently using but it doesn't run: <code>0 1,9,13,16   *   *   *</code></p>
  
  <p>In order to get it to run I have to use this: <code>0    *   *   *   *</code> or <code>*    *   *   *   *</code></p>
  
  <p>Any ideas?</p>