public LocalInstant Add(LocalInstant localInstant, long value)
{
int currentYear = calculator.GetYear(localInstant);
// Adjust argument range based on current year
Preconditions.CheckArgumentRange("value", value, calculator.MinYear - currentYear, calculator.MaxYear - currentYear);
// If we got this far, the conversion to int must be fine.
int intValue = (int)value;
return(calculator.SetYear(localInstant, intValue + currentYear));
}