earthBranchDay method

PWBEarthBranchModel earthBranchDay()

Implementation

PWBEarthBranchModel earthBranchDay() {
  String start = "1921-01-01 00:00:00"; // 甲子日起算
  DateTime dateStart = DateTime.parse(start).toLocal();
  Duration duration = theDate.difference(dateStart);
  int index = duration.inDays % 12;
  index = index >= 0 ? index : index + 12;
  return PWBEarthBranchModel(PWBEarchBranchEnum.values[index]);
}