System.Globalization.EastAsianLunisolarCalendar.LunarToGregorian C# (CSharp) Method

        internal bool LunarToGregorian(int nLYear, int nLMonth, int nLDate, ref int nSolarYear, ref int nSolarMonth, ref int nSolarDay) {
            int numLunarDays;

            if (nLDate < 1 || nLDate > 30)
                return false;

            numLunarDays = nLDate-1;

            //Add previous months days to form the total num of days from the first of the month.
            for (int i = 1; i < nLMonth; i++) {
                numLunarDays += InternalGetDaysInMonth(nLYear, i);
            }

            //Get Gregorian First of year
            int nJan1Month = GetYearInfo(nLYear, Jan1Month);
            int nJan1Date = GetYearInfo(nLYear, Jan1Date);

            // calc the solar day of year of 1 Lunar day
            int fLeap = GergIsleap(nLYear);
            int[] days = (fLeap==1)? DaysToMonth366: DaysToMonth365;

            nSolarDay  = nJan1Date;

            if (nJan1Month > 1)
                nSolarDay += days [nJan1Month-1];

            // Add the actual lunar day to get the solar day we want
            nSolarDay = nSolarDay + numLunarDays;// - 1;

            if ( nSolarDay > (fLeap + 365)) {
                nSolarYear = nLYear + 1;
                nSolarDay -= (fLeap + 365);
            } else {
                nSolarYear = nLYear;
            }

            for (nSolarMonth = 1; nSolarMonth < 12; nSolarMonth++) {
                if (days[nSolarMonth] >= nSolarDay)
                    break;
            }

            nSolarDay -= days[nSolarMonth-1];
            return true;
        }