I'm running a script on synology (NAS) that is deleting files older than x days on certain folders.The problem is that I want these files to be deleted after X days of being uploaded on the folder. So I thought of using ctime, mtime, or atime, but the problem is that these are based on file change time, file modify time or file accessed time.Accessed time doesn't work for me, and modify time doesn't work because the files that I am uploading on Synology import the modify file time from Windows (sometimes very old times).Does anyone know a solution? 
Delete files older than X days - mtime, ctime and atime doesn't work
files;find;timestamps