Index: vsftpd-3.0.2/postlogin.c
===================================================================
--- vsftpd-3.0.2.orig/postlogin.c	2017-04-06 12:40:37.413294178 +0200
+++ vsftpd-3.0.2/postlogin.c	2017-04-06 12:40:37.610294876 +0200
@@ -1639,7 +1639,7 @@ handle_mdtm(struct vsf_session* p_sess)
     else
     {
       retval = vsf_sysutil_setmodtime(
-        str_getbuf(&p_sess->ftp_arg_str), modtime, tunable_use_localtime);
+        str_getbuf(&p_sess->ftp_arg_str), modtime, 0);
       if (retval != 0)
       {
         vsf_cmdio_write(p_sess, FTP_FILEFAIL,
@@ -1664,7 +1664,7 @@ handle_mdtm(struct vsf_session* p_sess)
       static struct mystr s_mdtm_res_str;
       str_alloc_text(&s_mdtm_res_str,
                      vsf_sysutil_statbuf_get_numeric_date(
-                       s_p_statbuf, tunable_use_localtime));
+                       s_p_statbuf, 0));
       vsf_cmdio_write_str(p_sess, FTP_MDTMOK, &s_mdtm_res_str);
     }
   }
Index: vsftpd-3.0.2/vsftpd.conf.5
===================================================================
--- vsftpd-3.0.2.orig/vsftpd.conf.5	2017-04-06 12:40:37.496294472 +0200
+++ vsftpd-3.0.2/vsftpd.conf.5	2017-04-06 12:41:50.271557442 +0200
@@ -556,9 +556,11 @@ may be found within the _current_ chroot
 Default: NO
 .TP
 .B use_localtime
-If enabled, vsftpd will display directory listings with the time in your
-local time zone. The default is to display GMT. The times returned by the
-MDTM FTP command are also affected by this option.
+If enabled, vsftpd will display directory listings with the time in your local
+time zone. The default is to display GMT. Note that this setting will NOT
+affect the times returned by the MDTM FTP command in this version of the
+daemon. This behavior deviates from the upstream version, which violated
+RFC3659 and subsequently caused problems with popular FTP clients.
 
 Default: NO
 .TP