There are utilities like rdate that allow you to set the timezone, and you can use other approaches that require a bunch of steps to get the timezone changed or complicated ones, but here’s what I use. This is the easiest method that I know works on both Redhat and Debian based systems.
There’s a folder you can create on your desktop that allows you to see every possible thing you can do to your system, all in a single window under one big tree.
If you see the Cant initalize UI, Running in headless mode, you’re probably using one of the non-sun javas like openjdk or icedtea. These are not compatible and will cause this error during installation.
Use wget to download google’s key and pipe it into apt-key. Add the repository to /etc/apt/sources.list. Browse the repositories with aptitude.
While you could just rename the base directory that contains the repository itself, your historical information would be broken. To rename the repository without breaking any of the history of that repo, simply dump it and reload it to the new repository.