broadcastreceiver - Android: AlarmManager called my Broadcast Receiver even though the trigger time not reached yet -

i having trouble alarm manager , broadcast. code schedule task in hour.

var preference = preferencemanager.getdefaultsharedpreferences (application.context);         var alarmmanager = (alarmmanager)application.context.getsystemservice (application.alarmservice);           var intent = new intent (application.context, typeof(scheduleusagelogreceiver));         var schedule = new logschedule (1);         var serializer = new datacontractjsonserializer (typeof(logschedule));          if (preference.contains (scheduleusagelogreceiver.share_preference_usage_name))             return;           using (memorystream ms = new memorystream())         {             serializer.writeobject(ms, schedule);             var json = encoding.default.getstring(ms.toarray());             var editor = preference.edit ();             editor.putstring (scheduleusagelogreceiver.share_preference_usage_name, json);             editor.commit ();         }          var pendingintent = pendingintent.getbroadcast (application.context, 0, intent, 0);         alarmmanager.set (alarmtype.rtc, schedule.numbermillisecondtolog, pendingintent); 

the broadcast receiver receiving schedule is

[broadcastreceiver] [intentfilter (new string[] { android.content.intent.actionshutdown, "com.htc.intent.action.quickboot_poweroff", android.content.intent.actionbootcompleted } )] public class scheduleusagelogreceiver : broadcastreceiver {     public const string share_preference_usage_name = "scheduleusagelogreceiver";       public override void onreceive (context context, intent intent)     {         toast.maketext (context, "received intent!", toastlength.short).show ();}} 

i have bootcomplete action , shutdown action breakpoint intent didn't contain these action don't think problem.

i have checked trigger time 3600000 don't know why trigger when compiled , run application.

if creating pendingintent of alarm past time fired immediately. check , confirm time providing not passed/current time.