How To Display Anything (Your Name Or Any Message) In The Taskbar Clock

 Open Control Panel -> Region and Language. 

     

Click Additional Settings.

     

Navigate to the Time tab.

     

Change the Time formats according to your liking:

    

Type anything that you want to display in the AM symbol & PM symbol textboxes.

      

(Anything) (Hour):(Minute):

      Type tt h:mm in the Long time textbox.        

      Type anything that you want to display in the AM symbol & PM symbol textboxes.