title: how to implement and use NITZ?
body: <p>After searching internet and asking in here. I found out that the solution to get exact time from simcard is using a service called NITZ(Network Identity and Time Zone) which by the way android uses to set time when user specifies "automatic time syncing" in settings. <br />
  I'm curious to know how I can implement such a thing and use it in my app to get accurate time. <br />
  It appears android use a method called 'revertToNitz()' to sync time. <br />
  I want to use it too. I appreciate any help.</p>