diff --git a/rhodecode/templates/index_base.html b/rhodecode/templates/index_base.html
--- a/rhodecode/templates/index_base.html
+++ b/rhodecode/templates/index_base.html
@@ -89,7 +89,7 @@
                     </td>
                     ##LAST CHANGE DATE
                     <td>
-                      <span class="tooltip" title="${repo['last_change']}">${h.age(repo['last_change'])}</span>
+                      <span class="tooltip" title="${h.tooltip(h.fmt_date(repo['last_change']))}">${h.age(repo['last_change'])}</span>
                     </td>
                     ##LAST REVISION
                     <td>