Index: branches/unlabeled/unlabeled-1.4.2/core/units/general/helpers/search_helper.php
===================================================================
diff -u -r6849 -r6895
--- branches/unlabeled/unlabeled-1.4.2/core/units/general/helpers/search_helper.php	(.../search_helper.php)	(revision 6849)
+++ branches/unlabeled/unlabeled-1.4.2/core/units/general/helpers/search_helper.php	(.../search_helper.php)	(revision 6895)
@@ -415,9 +415,11 @@
 					
 					$day_seconds = 23 * 60 * 60 + 59 * 60 + 59;
 					if ($from !== false && $to === false) {
+						$from = strtotime(date('Y-m-d', $from).' 00:00:00', $from); // reset to morning
 						$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;
 					}
 					
@@ -463,19 +465,20 @@
 			}
 			
 			$lang_current =& $this->Application->recallObject('lang.current');
-			$dt_separator = getArrayValue($object->GetFieldOptions($search_field), 'date_time_separator');
-			if (!$dt_separator) {
-				$dt_separator = ' ';
-			}
+			$options = $object->GetFieldOptions($search_field);
+			$dt_separator = isset($options['date_time_separator']) ? $options['date_time_separator'] : ' ';
 			
-			$time = ($type == 'from') ? adodb_mktime(0, 0, 0) : adodb_mktime(23, 59, 59);
-			$time = adodb_date($lang_current->GetDBField('InputTimeFormat'), $time);
-			
-			$full_value = $value[$type].$dt_separator.$time;
+			$tmp_value = explode($dt_separator, $value[$type], 2);
+			if (count($tmp_value) == 1) {
+				// time is missing, then guess it and add to date
+				$time = ($type == 'from') ? adodb_mktime(0, 0, 0) : adodb_mktime(23, 59, 59);
+				$time = adodb_date($lang_current->GetDBField('InputTimeFormat'), $time);
+				$value[$type] .= $dt_separator.$time;
+			}
 
 			$formatter =& $this->Application->recallObject($object->Fields[$search_field]['formatter']);
 
-			$value_ts = $formatter->Parse($full_value, $search_field, $object);
+			$value_ts = $formatter->Parse($value[$type], $search_field, $object);
 			$pseudo = getArrayValue($object->FieldErrors, $search_field, 'pseudo');
 			if ($pseudo) {
 				unset($object->FieldErrors[$search_field]); // remove error!