Time.is - exact time in any location

Visualping - Visualping is the easiest to use website checker, webpage change monitoring, website change detector and website change alert software of the web. Read more about Visualping.

timeanddate.com - Free Clock for your website or blog!

Distill Web Monitor - Distill is a web monitoring tool. It can monitor RSS feeds, a webpage or a part of webpage. Alerts in the form of pop-up, audio or emails can be received.

Every Time Zone - Online tool for keeping up with times around the world.

Update Scanner - Update Scanner is a Firefox extension to monitor web pages for updates.