Timezones are misconfigured

[Turtleb01]

/etc/localtime should be symlinked to /usr/share/zoneinfo/Europe/Helsinki instead of /usr/share/zoneinfo/Etc/UTC

/etc/timezone is already set to Europe/Helsinki, but Debian requires both timezone and localtime to be set. This change could allow the desktop clock to be re-enabled, as Xfce4 (like most modern applications) reads the timezone from localtime.

There is no common standard between Windows and *NIX systems for the BIOS RTC clock timezone. In my experience, adding the clock to xfce4 panel and setting the timezone manually (2 for winter, 3 for summer) will display the correct time on my Linux computer and on Windows computers. More testing should be done before the clock can be enabled.