title: Get the time zone with React Native
body: <p>I'd like to get the timezone of the phone user so I can add or substract it to the UTC times I get from my API, and then make operations on them (for notifications, for example).</p>
  
  <p>I only found how to add an offset with DatePickerIOS, but nothing else... Is it possible to get it from the front?</p>