diff --git a/core/js/Utilities.js b/core/js/Utilities.js
index 9384441..bedf9d6 100644
--- a/core/js/Utilities.js
+++ b/core/js/Utilities.js
@@ -2,12 +2,13 @@
 //-- TiddlyWiki-specific utility functions
 //--
 
-function formatVersion(v)
+function formatVersion(v,dateFormat)
 {
 	v = v || version;
 	return v.major + "." + v.minor + "." + v.revision +
 		(v.alpha ? " (alpha " + v.alpha + ")" : "") +
-		(v.beta ? " (beta " + v.beta + ")" : "");
+		(v.beta ? " (beta " + v.beta + ")" : "") +
+		(dateFormat ? " (" + v.date.formatString(dateFormat) + ")" : "");
 }
 
 //# Compares two TiddlyWiki version objects