title: Having issue with repeatinterval every 30 minutes
body: <p>I am trying to repeat a local notification every 30 minutes but my code does not work fine ... I would be grateful if you help me and find the solution , here is my code :</p>
  
  <pre><code>UILocalNotification *reminderNote = [[UILocalNotification alloc]init];
  reminderNote.fireDate = [NSDate dateWithTimeIntervalSinceNow:60 * 30];
  reminderNote.repeatInterval = NSHourCalendarUnit;
  reminderNote.alertBody = @"some text";
  reminderNote.alertAction = @"View";
  reminderNote.soundName = @"sound.aif";
  [[UIApplication sharedApplication] scheduleLocalNotification:reminderNote];
  </code></pre>