title: Spring cron expression for every day two times
body: <p>I have following spring job to run every day two times please check my following cron express is that correct to trigger every day two times.</p>
  
  <pre><code>@Scheduled(cron = "0 0 24/12 * ? *")
  public void demoService()
  {
  
  }
  </code></pre>
  
  <p>I tried the above expression, but this didn't work. What's wrong here?</p>