title: Problem in scheduling repeating local notification every hour
body: <p>Im trying to schedule local notification every hour. The problem is that im getting the notification in such irregular time. Sometime in 10 minutes, or in second, or 30 minutes. Sometime i get like 10 notifications in the same second suddenly. I have no idea what is the mistake im doing here. I apologize in advance, i just started learning swift. </p>
  
  <p>This is my code. </p>
  
  <pre><code>@objc func LocalNotificationHour() {
  
      let user = UNUserNotificationCenter.current()
      user.requestAuthorization(options: [.alert,.sound]) { (granted, error) in}
  
      let content = UNMutableNotificationContent()
      content.title = "Local Notification"
      content.body = "Test."
  
      let trigger = UNTimeIntervalNotificationTrigger(timeInterval: (60*60), repeats: true)
  
      let uuid = UUID().uuidString
      let request = UNNotificationRequest(identifier: uuid, content: content, trigger: trigger)
  
      user.add(request) { (error) in print("Error")}
  }
  </code></pre>