Best of all, Simple Time and Date Live Wallpaper is aLiveWallpaper that is free.
How to use:
1. Press and hold on the Home screen.
2. Select "Set wallpaper".
3. Choose whether you would like to set Home, Lock, or both.
4. Select "Live wallpapers".
5. Select "Simple Time and Date Live Wallpaper.
6. Select "Set wallpaper".