Index: branches/5.2.x/core/kernel/utility/formatters/date_formatter.php
===================================================================
--- branches/5.2.x/core/kernel/utility/formatters/date_formatter.php
+++ branches/5.2.x/core/kernel/utility/formatters/date_formatter.php
@@ -373,10 +373,11 @@
 	 * @param mixed $value
 	 * @param string $field_name
 	 * @param kDBItem $object
+	 * @param string  $format Format.
 	 * @return mixed
 	 * @access public
 	 */
-	public function Parse($value, $field_name, &$object)
+	public function Parse($value, $field_name, &$object, $format = null)
 	{
 		$options = $object->GetFieldOptions($field_name);
 
@@ -385,7 +386,10 @@
 		if($value == '') return NULL;
 		//return strtotime($value);
 
-		$format = $options['input_format'];
+		if ( !isset($format) ) {
+			$format = $options['input_format'];
+		}
+
 		if ($dt_separator) $format = trim($format, $dt_separator);
 
 		$error_params = array(
Index: branches/5.2.x/core/units/helpers/search_helper.php
===================================================================
--- branches/5.2.x/core/units/helpers/search_helper.php
+++ branches/5.2.x/core/units/helpers/search_helper.php
@@ -602,18 +602,28 @@
 					$to = $this->processRangeField($object, $field_name, $field_options['submit_value'], 'to');
 
 					$day_seconds = 23 * 60 * 60 + 59 * 60 + 59;
-					if ($from !== false && $to === false) {
-						$from = strtotime(date('Y-m-d', $from) . ' 00:00:00', $from); // reset to morning
+
+					if ( is_numeric($from) && $to === null && date('H:i:s', $from) == '00:00:00' ) {
 						$to = $from + $day_seconds;
 					}
-					elseif ($from === false && $to !== false) {
-						$to = strtotime(date('Y-m-d', $to) . ' 23:59:59', $to); // reset to evening
-						$from = $to - $day_seconds;
+					elseif ( $from === null && is_numeric($to) && date('H:i:s', $to) == '00:00:00' ) {
+						$from = $to;
+						$to += $day_seconds;
+					}
+
+					if ( is_numeric($from) && $to === null || $from === null && is_numeric($to) ) {
+						$from = $from === null ? $to : $from;
+						$to = $from;
 					}
 
-					if ($from !== false && $to !== false) {
+					if ( is_numeric($from) && is_numeric($to) ) {
+						$from = strtotime(date('Y-m-d H:i', $from) . ':00', $from);
+						$to = strtotime(date('Y-m-d H:i', $to) . ':59', $to);
 						$filter_value = $table_name.'`'.$field_name.'` >= '.$from.' AND '.$table_name.'`'.$field_name.'` <= '.$to;
 					}
+					else {
+						$filter_value = 'FALSE';
+					}
 					break;
 
 				case 'equals':
@@ -669,38 +679,45 @@
 		 * @param string $search_field
 		 * @param string $value
 		 * @param string $type
+		 * @param string $format_option_prefix Format option prefix.
 		 */
-		function processRangeField(&$object, $search_field, $value, $type)
+		function processRangeField(&$object, $search_field, $value, $type, $format_option_prefix = '')
 		{
-			if ( !strlen($value[$type]) ) {
-				return false;
+			$value_by_type = $value[$type];
+
+			if ( !strlen($value_by_type) ) {
+				return null;
 			}
 
 			$options = $object->GetFieldOptions($search_field);
 			$dt_separator = array_key_exists('date_time_separator', $options) ? $options['date_time_separator'] : ' ';
-			$value[$type] = trim($value[$type], $dt_separator); // trim any
+			$value_by_type = trim($value_by_type, $dt_separator); // trim any
 
-			$tmp_value = explode($dt_separator, $value[$type], 2);
+			$tmp_value = explode($dt_separator, $value_by_type, 2);
 			if ( count($tmp_value) == 1 ) {
-				$time_format = $this->_getInputTimeFormat($options);
+				$time_format = $this->_getInputTimeFormat($options,  $format_option_prefix . 'time_format');
 				if ( $time_format ) {
 					// time is missing, but time format available -> guess time and add to date
-					$time = ($type == 'from') ? adodb_mktime(0, 0, 0) : adodb_mktime(23, 59, 59);
+					$time = adodb_mktime(0, 0, 0);
 					$time = adodb_date($time_format, $time);
-					$value[$type] .= $dt_separator . $time;
+					$value_by_type .= $dt_separator . $time;
 				}
 			}
 
 			/** @var kFormatter $formatter */
 			$formatter = $this->Application->recallObject($options['formatter']);
-
-			$value_ts = $formatter->Parse($value[$type], $search_field, $object);
+			$format = $options[$format_option_prefix . 'format'];
+			$value_ts = $formatter->Parse($value_by_type, $search_field, $object, $format);
 
 			if ( $object->GetErrorPseudo($search_field) ) {
 				// invalid format -> ignore this date in search
 				$object->RemoveError($search_field);
 
-				return false;
+				if ( $format_option_prefix == 'input_' ) {
+					return false;
+				}
+
+				return $this->processRangeField($object, $search_field, $value, $type, 'input_');
 			}
 
 			return $value_ts;
@@ -709,19 +726,21 @@
 		/**
 		 * Returns InputTimeFormat using given field options
 		 *
-		 * @param Array $field_options
+		 * @param Array  $field_options
+		 * @param string $format_option_name Format option name.
 		 * @return string
 		 */
-		function _getInputTimeFormat($field_options)
+		function _getInputTimeFormat($field_options, $format_option_name = 'input_time_format')
 		{
-			if ( array_key_exists('input_time_format', $field_options) ) {
-				return $field_options['input_time_format'];
+			if ( array_key_exists($format_option_name, $field_options) ) {
+				return $field_options[$format_option_name];
 			}
 
 			/** @var LanguagesItem $lang_current */
 			$lang_current = $this->Application->recallObject('lang.current');
+			$field_name = str_replace(' ', '', ucwords(str_replace('_', ' ', $format_option_name)));
 
-			return $lang_current->GetDBField('InputTimeFormat');
+			return $lang_current->GetDBField($field_name);
 		}
 
 		/**