1. Look at the time the job ran in the system log.
2. Look at the time the FTP step ran in the job output.
3. For my FTP batch jobs, there is a date and time stamp on the first line of the FTP output so look at the FTP output.
4. Issue a LIST (or DIR) command after the PUT and before the QUIT to get the file information, which usually includes a date and time stamp.
If you are looking for an FTP command that will tell you this, there is no such thing. Furthermore, if you're sending a file across 5 time zones, are you wanting the time on the sending side or the receiving side?