If you feel tired with the simple clock provided by Windows and are looking for a date/time display on your Windows desktop, you may take a look on a freeware called DS Clock.
DS Clock is a digital desktop clock that displays variable date and time information.
Simply adds the date/time to your desktop. You can choose your fonts and colors, the font size of the display and the format in which the date/time. You can move the clock anywhere.
It also has a lot of other features, like alarm, synchronize the clock from Internet time servers. You can also set a custom sound to play at the top/half of the hour.
This useful tool can be found here: