dateformat_test.dart

import 'package:http/http.dart' as http;
import 'dart:json' as JSON;
import 'package:intl/date_symbol_data_local.dart';
import 'package:intl/intl.dart';


DateTime getDate(String input) {
  var dateFormat = new DateFormat("yyyyMMddHm");
  return dateFormat.parse(input);
}


void printDayAgo(data){
  print(data);
  int dayAgo = (new DateTime.now()).difference(getDate(data["date"])).inDays;
  print("Dart SDK was updated ${dayAgo} days ago.");
}

void main() {
  String url = "http://dart-editor-archive-integration.commondatastorage.googleapis.com/latest/VERSION";
  http.read(url).then((content) => JSON.parse(content)).then((data) => printDayAgo(data));
}