title: show a notification on a particular date and time
body: <p>I need to show a notification on a particular date and time (27-06-2015 13:00). Initially I am showing a toast message. I have created a broadcast receiver to do that. I am calling the pending intent like this - </p>
  
  <p><strong>Activity Code -</strong></p>
  
  <pre><code>Calendar cal=Calendar.getInstance();
  cal.set(Calendar.MONTH,(5));
  cal.set(Calendar.YEAR,2015);
  cal.set(Calendar.DAY_OF_MONTH, 27);
  cal.set(Calendar.HOUR_OF_DAY,13);
  cal.set(Calendar.MINUTE,00);
  
  Intent myIntent1 = new Intent(this, AlarmBroadCustReciver.class);
  PendingIntent pendingIntent1 = PendingIntent.getBroadcast(this, 1253, myIntent1,
          PendingIntent.FLAG_UPDATE_CURRENT);
  
  AlarmManager alarmManager1 = (AlarmManager) getSystemService(ALARM_SERVICE);
  alarmManager1.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pendingIntent1);
  </code></pre>
  
  <p><strong>Broadcust Receiver Code -</strong></p>
  
  <pre><code>public class AlarmBroadCustReciver extends BroadcastReceiver {
      public AlarmBroadCustReciver() {
      }
  
      public void onReceive(Context context, Intent intent) {
          Toast.makeText(context, "Alarm worked.", Toast.LENGTH_LONG).show();
      }
  }
  </code></pre>
  
  <p>I am trying to check that by changing the time of my phone.I am changing the phone time to 12:59. But When I am calling the Broadcast Receiver it instantly giving the toast message it should show when the time is 13:00 as per my logic. Am I doing anything wrong?</p>