Dexclock is a free, but ad-supported desktop wallpaper application that's straightforward and well-designed.
Here are some screenshots to illustrate the features and user interface of this application:
Compact and wallpaper client for Windows, that embeds a clock into the wallpaper of choice, in order to enhance the desktop. Screenshot of Dexclock - 400px · 300pxBeautiful desktop wallpapers with clock functionality. Screenshot of Dexclock - 400px · 300pxDexclock: Wallpaper Clocks. Screenshot of Dexclock - 400px · 300pxBeautiful set of clock designs for Windows desktop. Screenshot of Dexclock - 400px · 300pxDexclock: User interface. Screenshot of Dexclock - 527px · 403px
EarthTime
CalendarTask (formerly DesktopCal)
OnlyStopWatch
TheAeroClock
Free Alarm Clock