Index: clock.js
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/clock/clock.js,v
retrieving revision 1.9.2.7
diff -u -p -r1.9.2.7 clock.js
--- clock.js	21 Sep 2010 22:36:43 -0000	1.9.2.7
+++ clock.js	22 Nov 2010 16:20:55 -0000
@@ -222,12 +222,16 @@ function formatDate(date, dateFormat, ti
   var dayLeadingZero = ((day < 10) ? '0' + day : day);
   switch (day) {
     case 1:
+    case 21:
+    case 31:
       var dayOfMonthAppend = Drupal.t('st');
       break;
     case 2:
+    case 22:
       var dayOfMonthAppend = Drupal.t('nd');
       break;
     case 3:
+    case 23:
       var dayOfMonthAppend = Drupal.t('rd');
       break;
     default: