public ChronoPeriod Until(ChronoLocalDate endDate)
{
// TODO: untested
HijrahDate end = Chronology.Date(endDate);
long totalMonths = (end.ProlepticYear - this.ProlepticYear) * 12 + (end.MonthOfYear - this.MonthOfYear); // safe
int days = end.DayOfMonth - this.DayOfMonth;
if (totalMonths > 0 && days < 0)
{
totalMonths--;
HijrahDate calcDate = this.PlusMonths(totalMonths);
days = (int)(end.ToEpochDay() - calcDate.ToEpochDay()); // safe
}
else if (totalMonths < 0 && days > 0)
{
totalMonths++;
days -= end.LengthOfMonth();
}
long years = totalMonths / 12; // safe
int months = (int)(totalMonths % 12); // safe
return(Chronology.period(Math.ToIntExact(years), months, days));
}
public ChronoPeriod Until(ChronoLocalDate endDate)
{
Period period = IsoDate.Until(endDate);
return(Chronology.period(period.Years, period.Months, period.Days));
}