System.Globalization.PersianCalendar.CheckTicksRange C# (CSharp) Method

        internal void CheckTicksRange(long ticks) {
            if (ticks < minDate.Ticks || ticks > maxDate.Ticks) {
                throw new ArgumentOutOfRangeException(
                            "time",
                            String.Format(
                                CultureInfo.InvariantCulture,
                                Environment.GetResourceString("ArgumentOutOfRange_CalendarRange"),
                                minDate,
                                maxDate));
            }
        }

        // Token: 0x06002F7C RID: 12156 RVA: 0x000B5B8C File Offset: 0x000B3D8C
        internal int GetDatePart(long ticks, int part)
        {
            PersianCalendar.CheckTicksRange(ticks);
            long num  = ticks / 864000000000L + 1L;
            long num2 = CalendricalCalculationsHelper.PersianNewYearOnOrBefore(num);
            int  num3 = (int)Math.Floor((double)(num2 - PersianCalendar.PersianEpoch) / 365.242189 + 0.5) + 1;

            if (part == 0)
            {
                return(num3);
            }
            int num4 = (int)(num - CalendricalCalculationsHelper.GetNumberOfDays(this.ToDateTime(num3, 1, 1, 0, 0, 0, 0, 1)));

            if (part == 1)
            {
                return(num4);
            }
            int num5 = PersianCalendar.MonthFromOrdinalDay(num4);

            if (part == 2)
            {
                return(num5);
            }
            int result = num4 - PersianCalendar.DaysInPreviousMonths(num5);

            if (part == 3)
            {
                return(result);
            }
            throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_DateTimeParsing"));
        }