--- announcements.module.orig	2008-10-03 16:52:43.000000000 -0700
+++ announcements.module	2008-10-05 12:50:15.000000000 -0700
@@ -754,8 +778,8 @@
   $month = $drupal_date["month"];
   $day   = $drupal_date["day"];
   
-  // Making the hour 12 helps prevent the date from adjusting due to GMT offset.
-  return mktime(12, 0, 0, (int)$month, (int)$day, (int)$year);
+  // compute time in UTC since time() returns UTC.
+  return gmmktime(0, 0, 0, (int)$month, (int)$day, (int)$year);
 }
 
 function _announcements_unixtime2drupaldate($unixtime) {