title: How to set Local Notification repeat interval to custom time interval?
body: <p>I am making an iPhone app, which has a requirement of Local Notifications.</p>
  
  <p>In local notifications there is <strong>repeatInterval</strong> property where we can put the unit repeat intervals for mintute, hour, day,week,year, etc.</p>
  
  <p>I want that repeat interval should be 4 hours.</p>
  
  <p>So every <strong>4 hours</strong> the local notification comes.</p>
  
  <p>I dont want the user to set seperate notifications for each.</p>
  
  <p>I want the user to be able to set repeatInterval as 4 hours.</p>
  
  <p>How do I do that?</p>