Step 1 : Go to start
Step 2: Then go to Control panel
Step 3: select regional language option
Step 4: select regional option again
Step 5: Click on customize
Step 6: Click on time
Step 7: Click on am & pm and modify as you want!
thats it we have done it!
So if everything worked properly then you would see your name in place of am and pm in task bar!
Now dont forget to comment on it!

Maxxxxaaaaaaaaaaaa