finalTime method
Implementation
@override
DateTime finalTime() {
int hour = _currentLeftIndex + 12 * _currentRightIndex;
return currentTime.isUtc
? DateTime.utc(currentTime.year, currentTime.month, currentTime.day,
hour, _currentMiddleIndex, 0)
: DateTime(currentTime.year, currentTime.month, currentTime.day, hour,
_currentMiddleIndex, 0);
}