title: CRON: Run job on particular hours
body: <p>I have a spring batch application and i am using CRON to set how often this application runs. But the problem i am running into is that i want to run the job on specific hours</p>
  
  <pre><code>3 am
  7 am
  11 am
  3 pm
  7 pm
  11 pm
  </code></pre>
  
  <p>As you can see it is every 4 hours but starts at 3 am so i cannot use <code>*/4</code> in the hours section of the timing format as this would start the job at 4am</p>
  
  <p>I have also tried <code>'3,7,11,15,19,23'</code> in the hours section but this does not work either (guessing it only works in the minutes section). Does someone know how i can do this?</p>