toUtc method Null safety

DateTime toUtc ()

Returns this DateTime value in the UTC time zone.

Returns this if it is already in UTC. Otherwise this method is equivalent to:

new DateTime.fromMicrosecondsSinceEpoch(microsecondsSinceEpoch,
                                        isUtc: true)

Implementation

DateTime toUtc() {
  if (isUtc) return this;
  return DateTime._withValue(_value, isUtc: true);
}