WORLD TIME ZONE
EXPLANATION
1.  Your System Time: is the time that is in your
computer system, found bottom right...
2.  Greenwich Mean Time : means the place in
 England where the Atomic Clock is,
this is the clock that regulates world time...
3. Time Of Selected City: Is the time at the city
that you have selected...
4.  Select the name of the capital city
where you are at...
5. Select the name of the city whose
time and date you wish to display....