nc-photos/app/lib/date_time_extension.dart

extension DateTimeExtension on DateTime {
  DateTime copyWith({
    int? year,
    int? month,
    int? day,
    int? hour,
    int? minute,
    int? second,
    int? millisecond,
    int? microsecond,
  }) {
    if (isUtc) {
      return DateTime.utc(
        year ?? this.year,
        month ?? this.month,
        day ?? this.day,
        hour ?? this.hour,
        minute ?? this.minute,
        second ?? this.second,
        millisecond ?? this.millisecond,
        microsecond ?? this.microsecond,
      );
    } else {
      return DateTime(
        year ?? this.year,
        month ?? this.month,
        day ?? this.day,
        hour ?? this.hour,
        minute ?? this.minute,
        second ?? this.second,
        millisecond ?? this.millisecond,
        microsecond ?? this.microsecond,
      );
    }
  }

  /// Return a new object representing the midnight of the same day
  DateTime toMidnight() =>
      copyWith(hour: 0, minute: 0, second: 0, millisecond: 0, microsecond: 0);
}