C# 내 로컬 PC시간 NAVER 서버 시간으로 변경

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using System; using System.Globalization; using System.Net; using System.Runtime.InteropServices;   namespace timechange {     internal class Program     {         [StructLayout(LayoutKind.Sequential)]         public struct SYSTEMTIME         {             public short wYear;             public short wMonth;             public short wDayOfWeek;             public short wDay;             public short wHour;             public short wMinute;             public short wSecond;             public short wMilliseconds;         }           [DllImport("kernel32.dll", SetLastError = true)]         public static extern bool SetSystemTime(ref SYSTEMTIME st);           [DllImport("kernel32.dll", SetLastError = true)]         public static extern bool SetLocalTime(ref SYSTEMTIME st);           static void Main(string[] args)         {             DateTime dateTime = DateTime.MinValue;             try             {                 // 네이버 사이트 시간하고 맞춰서 시간 설정                 using (var response = WebRequest.Create("https://www.naver.com").GetResponse())                     dateTime = DateTime.ParseExact(response.Headers["date"],                         "ddd, dd MMM yyyy HH:mm:ss 'GMT'",                         CultureInfo.InvariantCulture.DateTimeFormat,                         DateTimeStyles.AssumeUniversal);             }             catch (Exception)             {                 dateTime = DateTime.Now;             }             Console.WriteLine(dateTime);                            SYSTEMTIME st = new SYSTEMTIME();             st.wYear = (short)dateTime.Year;             st.wMonth = (short)dateTime.Month;             st.wDay = (short)dateTime.Day;             st.wHour = (short)dateTime.Hour;             st.wMinute = (short)dateTime.Minute;             st.wSecond = (short)dateTime.Second;             st.wMilliseconds = (short)dateTime.Millisecond;               SetSystemTime(ref st);             SetLocalTime(ref st);             Console.ReadKey();         }     } }