diff --git a/web/includes/lang.php b/web/includes/lang.php
index 3e1957391..94ebba530 100644
--- a/web/includes/lang.php
+++ b/web/includes/lang.php
@@ -43,4 +43,18 @@ function loadLanguage( $prefix="" )
 if ( $langFile = loadLanguage() )
     require_once( $langFile );
 
+
+//
+// Date and time formats fallback, if not set up by the language file already
+//
+defined("DATE_FMT_CONSOLE_LONG") or define("DATE_FMT_CONSOLE_LONG", "D jS M, g:ia");		// This is the main console date/time, date() or strftime() format
+defined("DATE_FMT_CONSOLE_SHORT") or define( "DATE_FMT_CONSOLE_SHORT", "%H:%M" );		// This is the xHTML console date/time, date() or strftime() format
+
+defined("STRF_FMT_DATETIME") or define( "STRF_FMT_DATETIME", "%c" );				// Strftime locale aware format for dates with times
+defined("STRF_FMT_DATE") or define( "STRF_FMT_DATE", "%x" );					// Strftime locale aware format for dates without times
+defined("STRF_FMT_TIME") or define( "STRF_FMT_TIME", "%X" );					// Strftime locale aware format for times without dates
+
+defined("STRF_FMT_DATETIME_SHORT") or define( "STRF_FMT_DATETIME_SHORT", "%y/%m/%d %H:%M:%S" );	// Strftime shorter format for dates with time, not locale aware
+defined("STRF_FMT_DATETIME_SHORTER") or define( "STRF_FMT_DATETIME_SHORTER", "%m/%d %H:%M:%S" );// Strftime shorter format for dates with time, not locale aware, used where space is tight
+
 ?>