flutter string to datetime format

import 'package:intl/intl.dart';

DateTime now = DateTime.now();
String formattedDate = DateFormat('yyyy-MM-dd – kk:mm').format(now);

DateTime tempDate = new DateFormat("yyyy-MM-dd hh:mm:ss").parse(savedDateString);

TimeOfDay _startTime = TimeOfDay(hour:int.parse(s.split(":")[0]),minute: int.parse(s.split(":")[1]));