New SMART Plugins project for jQuery & CSS is Smart Timer And Counter. This is powerful plugin to setup clocks and counters with support for skins (4 included), full CSS styling with many predefined styles for all skins, layouts control and fully responsive.
Plugin comes with 4 skins (Simple, Animated, Inline and Circular), it can work as a clock or as a counter. Has full control over date / time elements layouts, uses no images for styling and it comes with full documentation and many examples on how to use it. You can see this plugin in action on demo page.