Have a look at this blog post for setting the timezone:
http://www.turnkeylinux.org/blog/configuring-timezone
As for a client I'd check the Ubuntu server guide and/or forums for info
More information about text formats
By default TKL appliances use UTC IIRC
Have a look at this blog post for setting the timezone:
http://www.turnkeylinux.org/blog/configuring-timezone
As for a client I'd check the Ubuntu server guide and/or forums for info