Index: wp-admin/includes/class-wp-ms-sites-list-table.php
===================================================================
--- wp-admin/includes/class-wp-ms-sites-list-table.php	(revision 22322)
+++ wp-admin/includes/class-wp-ms-sites-list-table.php	(working copy)
@@ -281,9 +281,9 @@
 					case 'lastupdated':
 						echo "<td valign='top' class='$column_name column-$column_name'$style>";
 							if ( 'list' == $mode )
-								$date = 'Y/m/d';
+								$date = __( 'Y/m/d' );
 							else
-								$date = 'Y/m/d \<\b\r \/\> g:i:s a';
+								$date = __( 'Y/m/d g:i:s A' );
 							echo ( $blog['last_updated'] == '0000-00-00 00:00:00' ) ? __( 'Never' ) : mysql2date( $date, $blog['last_updated'] ); ?>
 						</td>
 					<?php
Index: wp-admin/includes/class-wp-ms-users-list-table.php
===================================================================
--- wp-admin/includes/class-wp-ms-users-list-table.php	(revision 22322)
+++ wp-admin/includes/class-wp-ms-users-list-table.php	(working copy)
@@ -206,9 +206,9 @@
 
 					case 'registered':
 						if ( 'list' == $mode )
-							$date = 'Y/m/d';
+							$date = __( 'Y/m/d' );
 						else
-							$date = 'Y/m/d \<\b\r \/\> g:i:s a';
+							$date = __( 'Y/m/d g:i:s A' );
 
 						echo "<td $attributes>" . mysql2date( $date, $user->user_registered ) . "</td>";
 					break;