diff --git a/rhodecode/templates/admin/users/users.html b/rhodecode/templates/admin/users/users.html
--- a/rhodecode/templates/admin/users/users.html
+++ b/rhodecode/templates/admin/users/users.html
@@ -44,6 +44,7 @@
           {key: "firstname"},
           {key: "lastname"},
           {key: "last_login"},
+          {key: "last_login_raw"},
           {key: "active"},
           {key: "admin"},
           {key: "ldap"},
@@ -78,7 +79,8 @@
       },
       {key:"firstname",label:"${_('firstname')}",sortable:true,},
       {key:"lastname",label:"${_('lastname')}",sortable:true,},
-      {key:"last_login",label:"${_('last login')}",sortable:true,},
+      {key:"last_login",label:"${_('last login')}",sortable:true,
+    	  sortOptions: { sortFunction: lastLoginSort }},
       {key:"active",label:"${_('active')}",sortable:true,},
       {key:"admin",label:"${_('admin')}",sortable:true,},
       {key:"ldap",label:"${_('ldap')}",sortable:true,},