Index: wp-includes/pluggable.php
===================================================================
--- wp-includes/pluggable.php	(revision 23381)
+++ wp-includes/pluggable.php	(working copy)
@@ -651,9 +651,9 @@
  */
 function wp_set_auth_cookie($user_id, $remember = false, $secure = '') {
 	if ( $remember ) {
-		$expiration = $expire = time() + apply_filters('auth_cookie_expiration', 1209600, $user_id, $remember);
+		$expiration = $expire = time() + apply_filters('auth_cookie_expiration', 14 * DAY_IN_SECONDS, $user_id, $remember);
 	} else {
-		$expiration = time() + apply_filters('auth_cookie_expiration', 172800, $user_id, $remember);
+		$expiration = time() + apply_filters('auth_cookie_expiration', 2 * DAY_IN_SECONDS, $user_id, $remember);
 		$expire = 0;
 	}