The description of World Clock - Play With New Friends
Add Multiple World Clocks to Your Browser ToolbarWith the world clock add-on, you can easily add multiple world clocks to your browser toolbar. These clocks will display the current time in every place, depending on the location and time zone. All you have to do is to add as many clocks as you like from the drop-down menu in the popup. In other words, there is no need to add the add-on itself; just visit the link, download the add-on, and you're ready to go.The feature is extremely easy to use and doesn't require any special knowledge. With the drag-and-drop option, you can easily move the clocks from the menu into the desired position on the toolbar. It is also possible to remove them from the toolbar by clicking on the cross-sign next to each item (remove button at the top-right corner). By default, there are nine items added to the toolbar; but you can remove them at any time by clicking on the cross-sign next to each item.