The package wu-ftpd-2.4.2b18-2.1 references the time zone with: /var/lib/zoneinfo/localtime Redhat, stores the timezone in /etc/localtime. So if you ftp into a machine, and do an "ls", it will show time as referenced by GMT, rather than showing the appropriate system time. A link needs to be made or the package needs to be changed, so that the correct timestamp is displayed by wu-ftpd. The timestamps of course are correct from within the operating system, by doing an "ls".
This has been corrected in the wu-ftpd and/or glibc combination shipped with Red Hat Linux 5.2. I have verified that the time reported by "ls" and the time reported by "dir" after ncftping into a host are identical. This is wu-ftpd-2.4.2b18-2, glibc-2.0.7-29.