316 roland> diff -uw modules/event/event.module.~1~  modules/event/event.module
--- modules/event/event.module.~1~	2009-06-28 12:53:58.000000000 -0400
+++ modules/event/event.module	2010-11-12 17:57:05.981040704 -0500
@@ -176,7 +176,7 @@
       // Lookup TZ ID based on TZ offset
       $timezone_id = event_timezone_map($user->timezone);
       // Update all users with the same offset.
-      db_query('UPDATE {users} SET timezone_id = %d WHERE timezone = %d AND timezone_id = 0', $timezone_id, $user->timezone);
+      db_query('UPDATE {users} SET timezone_id = %d WHERE timezone = \'%d\' AND timezone_id = 0', $timezone_id, $user->timezone);
     }
   }
 }
@@ -2317,7 +2317,7 @@
         $offset = explode(':', $zone->offset);
       }
       $offset = $offset[0] * 3600 + $offset[1] * 60 + $offset[2];
-      db_query('UPDATE {users} SET timezone = %d WHERE timezone_id = %d', $offset, $zone->timezone);
+      db_query('UPDATE {users} SET timezone = \'%d\' WHERE timezone_id = %d', $offset, $zone->timezone);
       if ($site_timezone == $zone->timezone) {
         variable_set('date_default_timezone', $offset);
       }
@@ -2736,7 +2736,7 @@
  */
 function event_extra_user_form_submit($form_id, &$form_values){
   $values = explode('|', $form_values['timezone']);
-  db_query('UPDATE {users} SET timezone = %d, timezone_id = %d WHERE uid = %d', $values[1], $values[0], arg(1));
+  db_query('UPDATE {users} SET timezone = \'%d\', timezone_id = %d WHERE uid = %d', $values[1], $values[0], arg(1));
 }

 /**