subtractYears method

DateTime subtractYears(
  1. int years
)

Implementation

DateTime subtractYears(int years) {
  int newYear = year - years;
  int newMonth = month;
  int newDay = day;
  while (newDay > daysInMonth(newYear, newMonth)) {
    newDay--;
  }
  return DateTime(newYear, newMonth, newDay, hour, minute, second,
      millisecond, microsecond);
}