title: Automatic Script to turn off and on
body: <p>I would like to know how to create a script that Automatically stop and start a Google Compute Engine instance. and how can I configure him to run every day and choose to run it only 5 days a week?</p>
  
  <p>because we are not using the server it nights so i can save 9 hours a day.</p>
  
  <p>can it be done?</p>
  
  <p>thank you.</p>