Index: wp-admin/includes/template.php
===================================================================
--- wp-admin/includes/template.php	(revision 16602)
+++ wp-admin/includes/template.php	(working copy)
@@ -577,6 +577,8 @@
 function touch_time( $edit = 1, $for_post = 1, $tab_index = 0, $multi = 0 ) {
 	global $wp_locale, $post, $comment;
 
+	if ( empty ( $post ) ) { return; }
+	
 	if ( $for_post )
 		$edit = ! ( in_array($post->post_status, array('draft', 'pending') ) && (!$post->post_date_gmt || '0000-00-00 00:00:00' == $post->post_date_gmt ) );