Extending DateTime

main.dart

void main() {
  var now = new DateTime.now();
  var later = now.add(const Duration(seconds: 5));
  print("now > later == ${now > later}");
  print("now >= later == ${now >= later}");
  print("now < later == ${now < later}");
  print("now <= later == ${now <= later}");
}

extension BetterDateTime on DateTime {
  bool operator <(dynamic other) {
    return other is DateTime && this.isBefore(other);
  }
  bool operator <=(dynamic other) {
    return other is DateTime && (this < other || this.isAtSameMomentAs(other));
  }
  bool operator >(dynamic other) {
    return other is DateTime && this.isAfter(other);
  }
  bool operator >=(dynamic other) {
    return other is DateTime && (this > other || this.isAtSameMomentAs(other));
  }
}