toJson method
Returns a JSON serialization for this instance.
Implementation
String toJson() {
return json.encode({
"year": _fourDigits(year),
"month": _twoDigits(month),
"date": _twoDigits(day),
"hour": _twoDigits(hour),
"min": _twoDigits(minute),
"sec": _twoDigits(second),
"ms": _threeDigits(millisecond),
});
}