it will just be there when you buy the computer
CNET offer free software such as desktop clocks and alarm clocks for your PC/Mac. The best, free clock software is (according to numerous of websites) "Free Desktop Clock". It offers a vizualised clock software with great configuration for free.
Go to Windows Desktop and open context menu (right click on desktop), select "Gadgets" from the list. New window will be opened with available gadgets on the system. Just take "Calendar" or "Clock" gadget and drag it anywhere on the desktop. After you done, close this gadgets selection window.
You can purchase an application with a world time clock for your desktop through many different sources. Apps are available through Windows and Apple sites and general software will also sell them.
Gadget
Itts called the task bar.
A desktop gadget is a tool, sometimes useful, like a clock or something that tells the local weather. Or another option is a sliding puzzle or something useless. -Dave! Yognaut.
It powers the BIOS memory, keeping your bios settings active, and it powers the clock.
There are lots of clocks that can downloaded and added to your desktop. CNET has some, as do other websites. They also list download instructions.
Many websites offer free desktop clocks. There are many different variations including traditional clocks, digital clocks, and even some that feature the ability to use your own background photos. One of the most popular desktop clocks is made available by Cnet.
At the computer terminal set up for clocking in, or at your desktop for your personal usage, the window for clocking in should be brought up. Click on your username or type it in if necessary, and type in your password. You should then be clocked in for work.
This is not possible with a standard install of Windows. The clock on the task bar shows up in a digital format only. There may be some third party software that would change this but I'm not aware of any.