title: Xamarin Android Alarm Manager Issue
body: <p>I have an <code>AlarmManager</code> in my Xamarin Android App. I'm configuring it using <code>SetExact()</code> with the time of 5 minutes. But it is being started after only five seconds. And no matter what time i'm configuring it with, it will always trigger after 5 seconds.
  I've used the exact same code in Java, and it worked perfectly fine.</p>
  
  <p>The code:</p>
  
  <pre><code>[BroadcastReceiver]
      public class AlarmReceiver : BroadcastReceiver
      {
          public override void OnReceive(Context context, Intent intent)
          {
              Log.Info("AlarmReceiver", "Triggered");
          }
  
          public static void Start(Context context, long triggerAfterMilis)
          {
              var type = AlarmType.RtcWakeup;
              var alarmManager = (AlarmManager) context.GetSystemService(Context.AlarmService);
  
              var timerIntent = PendingIntent.GetBroadcast(context, 0, new Intent(context, typeof(AlarmReceiver)), PendingIntentFlags.CancelCurrent);
  
              alarmManager.Cancel(timerIntent);
              if (Build.VERSION.SdkInt &gt;= BuildVersionCodes.M)
                  alarmManager.SetAndAllowWhileIdle(type, triggerAfterMilis, timerIntent);
              else if (Build.VERSION.SdkInt &gt;= BuildVersionCodes.Lollipop)
                  alarmManager.SetExact(type, triggerAfterMilis, timerIntent);
              else
                  alarmManager.Set(type, triggerAfterMilis, timerIntent);
              Log.Info("AlarmReceiver", $"Started, tigger after {triggerAfterMilis} miliseconds.");
          }
      }
  </code></pre>
  
  <p>How I'm using the <code>AlarmReceiver</code>:</p>
  
  <pre><code>AlarmReceiver.Start(Activity,(long)TimeSpan.FromMinutes(10).TotalMilliseconds)
  </code></pre>
  
  <p>The output window:</p>
  
  <blockquote>
    <p>14:14:20.217 5393-5393/AlarmReceiver: Started, tigger after 600000
    miliseconds. 14:14:25.218 5393-5393/AlarmReceiver: Triggered</p>
  </blockquote>