I am now running Ubuntu 11.04, but I remember that in previous versions of Ubuntu you had an interesting functionality in the clock indicator. You could see how late it was in some places in the world different from your current one. This was associated with a world map showing where it was day and where it was not.
How can I get this functionality back in the clock indicator ? Otherwise, do you advice me another solution to know easily how late it is in some special places ?