The company is privately-held and based in Norway. The site also offers links to something called Znake, "the Java game", with which I had no ability whatsoever!
The Personal World Clock is available in Java applet form and with a standard customization tool, as a free or fee-based service depending on usage requirements.
There are strict usage restrictions, which I adhered to in producing one version of their date and time clock. Have a look at the site and maybe you'll find something interesting for yourself.