title: Airflow - Run DAG three different times a day
body: <p>I am using Apache Airflow. In Airflow I can add cron like syntax but is there any way to run a DAG three different times a day? </p>
  
  <p>From cron syntax I can only add if the time is in a certain interval. But I want to run job three completely different time. </p>
  
  <p>For example I want to run a job <strong>3.50 PM</strong>, <strong>7.15 PM</strong> and <strong>11.59 PM</strong> everyday.</p>