Re: Synchronize via command line: how to adjust timestamp?
For synchronization, preserving timestamp is enabled always.
Please post a log file showing synchronization of a single file.
Oh, that's embarrassing for me, because the test today didn't work with "put -preservetime" either. But it works actually with "Total Commander". This fact was the reason about one month ago to test it per script with WinSCP on that FTP server. You must believe me, that it worked there. Unlucky I didn't notice the "log" switch then.
For now you can take a look on the logs: winscp-test.7z (<invalid hyperlink removed by admin>) (you need the recent 7Zip or Peazip).
(Please be so kind and delete the link here after downloading the file.)