Index: branches/5.3.x/core/units/promo_blocks/promo_block_eh.php
===================================================================
diff -u -N -r16519 -r16531
--- branches/5.3.x/core/units/promo_blocks/promo_block_eh.php	(.../promo_block_eh.php)	(revision 16519)
+++ branches/5.3.x/core/units/promo_blocks/promo_block_eh.php	(.../promo_block_eh.php)	(revision 16531)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: promo_block_eh.php 16519 2017-01-20 20:21:46Z alex $
+* @version	$Id: promo_block_eh.php 16531 2017-01-21 18:52:57Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2011 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -197,11 +197,12 @@
 		/** @var kDBItem $object */
 		$object = $event->getObject();
 
-		$date_from = $object->GetDBField('ScheduleFromDate_date');
-		$date_to = $object->GetDBField('ScheduleToDate_date');
+		$object->UpdateFormattersMasterFields();
+		$date_from = $object->GetDBField('ScheduleFromDate');
+		$date_to = $object->GetDBField('ScheduleToDate');
 
 		if ( $date_from && $date_to && $date_from >= $date_to ) {
-			$object->SetError('ScheduleFromDate_date', 'wrong_date_interval');
+			$object->SetError('ScheduleFromDate', 'wrong_date_interval');
 		}
 
 		$object->setRequired('CategoryId', $object->GetDBField('LinkType') == PromoBlockType::INTERNAL);