iTextSharp.text.pdf.PdfDate.Decode C# (CSharp) Метод

        public static DateTime Decode(string date)
        {
            if (date.StartsWith("D:"))
                date = date.Substring(2);
            int year, month = 1, day = 1, hour = 0, minute = 0, second = 0;
            int offsetHour = 0, offsetMinute = 0;
            char variation = '\0';
            year = int.Parse(date.Substring(0, 4));
            if (date.Length >= 6) {
                month = int.Parse(date.Substring(4, 2));
                if (date.Length >= 8) {
                    day = int.Parse(date.Substring(6, 2));
                    if (date.Length >= 10) {
                        hour = int.Parse(date.Substring(8, 2));
                        if (date.Length >= 12) {
                            minute = int.Parse(date.Substring(10, 2));
                            if (date.Length >= 14) {
                                second = int.Parse(date.Substring(12, 2));
                            }
                        }
                    }
                }
            }
            DateTime d = new DateTime(year, month, day, hour, minute, second);
            if (date.Length <= 14)
                return d;
            variation = date[14];
            if (variation == 'Z')
                return d.ToLocalTime();
            if (date.Length >= 17) {
                offsetHour = int.Parse(date.Substring(15, 2));
                if (date.Length >= 20) {
                    offsetMinute = int.Parse(date.Substring(18, 2));
                }
            }
            TimeSpan span = new TimeSpan(offsetHour, offsetMinute, 0);
            if (variation == '-')
                d += span;
            else
                d -= span;
            return d.ToLocalTime();
        }