apply method

Implementation

@override
Document apply(Document doc) {
  doc.set(selector, DateTime.utc(
    DateTime.now().year,
    DateTime.now().month,
    DateTime.now().day,
    DateTime.now().hour - DateTime.now().timeZoneOffset.inHours,
    DateTime.now().minute,
    DateTime.now().second,
  ).toIso8601String());
  return doc;
}