Here is very easy trick to write your name in place of AM/PM in the clock section. Try this  trick to add up your name in place of AM and PM beside time. 

Its simple just follow the steps…
  • Navigate to -> Start -> Control Pannel -> Regional and Language Option 
  • Click on Customize

  • Go to TIME Tab -> Change AM symbol and PM symbol from AM and PM tour name -> Apply -> Ok 
if the changes are not ocurred then do this….
  • Now go to time in taskbar and Double Click it to open “Date and time property” …
  • Look place where time changes in digital form i.e. 00:00:00 AM , click to
arrow to change the AM or PM by selecting and press arrow.
It will Show your name or name that was entered by u, Apply -> OK .