diff --git a/SeedDMS_Core/Core/inc.DBAccessPDO.php b/SeedDMS_Core/Core/inc.DBAccessPDO.php
index 9f15e6129..166f5e00b 100644
--- a/SeedDMS_Core/Core/inc.DBAccessPDO.php
+++ b/SeedDMS_Core/Core/inc.DBAccessPDO.php
@@ -432,6 +432,26 @@ class SeedDMS_Core_DatabaseAccess {
 		}
 		return false;
 	} /* }}} */
+
+	/**
+	 * Return sql statement for extracting the date part from a field
+	 * containing a unix timestamp
+	 *
+	 * @param string $fieldname name of field containing the timestamp
+	 * @return string sql code
+	 */
+	function getDateExtract($fieldname) { /* {{{ */
+		switch($this->_driver) {
+			case 'mysql':
+				return "from_unixtime(`".$fieldname."`, '%Y-%m-%d')";
+				break;
+			case 'sqlite':
+				return "date(`".$fieldname."`, 'unixepoch')";
+				break;
+		}
+		return '';
+	} /* }}} */
+
 }
 
 ?>