Calculating time difference in Milliseconds

Question

I am making a call to a method by passing ipAddress and it will return back the location of ipAddress like Country, City, etc etc. So I was trying to see how much time it is

Answer 1

Since Java 1.5, you can get a more precise time value with System.nanoTime(), which obviously returns nanoseconds instead.

There is probably some caching going on in the instances when you get an immediate result.