title: How to get current timezone region (tz database name) in Flutter
body: <p>I am new to flutter and my rest api takes current timezone as Europe/london. I don't know to get current timezone in flutter. There is a question in stackoverflow about this topic but no user gave the answer. </p>
  
  <p><a href="https://stackoverflow.com/questions/51361843/flutter-timezone-as-zoneid">Flutter Timezone (as ZoneId)</a></p>
  
  <p>Can anyone guide me, how can i get the current timezone in flutter using dart.</p>