How can I get an hour ago on dart with flutter?

Question

here was wrong.

final anHourAgo = (new DateTime.now()) - Duration(minutes: Duration.minutesPerHour);

Answer 1

It is resolved.

final anHourAgo = (new DateTime.now()).subtract(new Duration(minutes: Duration.minutesPerHour));

Answer 2

This should Work :

Text(TimeOfDay.fromDateTime(DateTime.now().subtract(Duration(hours: 1))).format(context)),