DateTime BehaviourSubject

// in dateService.dart

import 'dart:async';
import 'package:rxdart/rxdart.dart';

class DateService { 
  static DateTime now = DateTime.now();
  static DateTime today = DateTime(now.year, now.month, now.day, 0, 0, 0, 0).toUtc();
  BehaviorSubject<DateTime> dateSubject = BehaviorSubject<DateTime>.seeded(today);

  Stream<DateTime> get currentDate => dateSubject;

  void broadcastDate(DateTime date) {
    dateSubject.add(date);
  }
}
class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);
  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}
// in main.dart
var dateService = locator.get<DateService>();
class _MyHomePageState extends State<MyHomePage> {
  DateTime currentDate = dateService.dateSubject.value;
  
  @override
  void dispose() {
    dateService.dateSubject.close();
    super.dispose();
  }
  
  @override
  Widget build(BuildContext context) {
    return FutureBuilder<Word>(
      future: getTodayWord(),
      builder: (context, snapshot) {
        if(!snapshot.hasData) {
          return LoadingComponent();
        } else if (snapshot.hasError) {
          return new Text("${snapshot.error}");
        } else {
          return Scaffold(
          )
      });
    )
  }
}