how to make datetime to update current time in flutter code example

Example 1: how to display current date time in flutter

DateTime now = new DateTime.now();
DateTime date = new DateTime(now.year, now.month, now.day);

Example 2: how to display current date time in flutter

main() {
    var now = new DateTime.now();
    var formatter = new DateFormat('yyyy-MM-dd');
    String formattedDate = formatter.format(now);
    print(formattedDate); // 2016-01-25
}