Here's a millennium clock from the Electronic Millennium Project (EMP). By now the clock has popped up in its own window. If it hasn't, I'm sorry. It requires a JavaScript-compatible browser. The main EMP site explains how access to the worldwide web site is available to all browsers.
By now, I hope their graphic has downloaded too. Here are their logos, showing levels of participation. They are links to the EMP site. The main page downloads a JavaScript movie, so be sure you support that. You could go directly to the US mirror.