1: public class LocalDateTime

   2: {

   3:     [StructLayout(LayoutKind.Sequential)]

   4:     private struct SYSTEMTIME

   5:     {

   6:         public short wYear;

   7:         public short wMonth;

   8:         public short wDayOfWeek;

   9:         public short wDay;

  10:         public short wHour;

  11:         public short wMinute;

  12:         public short wSecond;

  13:         public short wMilliseconds;

  14:     }

  15:  

  16:     [DllImport("kernel32.dll", EntryPoint = "SetSystemTime", SetLastError = true)]

  17:     private static extern bool SetSystemTime(ref SYSTEMTIME st);

  18:  

  19:     [DllImport("kernel32.dll", EntryPoint = "GetSystemTime", SetLastError = true)]

  20:     private extern static void GetSystemTime(ref SYSTEMTIME sysTime);

  21:  

  22:     /// <summary>

  23:     /// Set the Local System DateTime

  24:     /// </summary>

  25:     /// <param name="date"></param>

  26:     public static void SetDateTime(DateTime date)

  27:     {

  28:         SYSTEMTIME st = new SYSTEMTIME();

  29:         st.wYear = (short)date.Year;

  30:         st.wMonth = (short)date.Month;

  31:         st.wDay = (short)date.Day;

  32:         st.wHour = (short)date.Hour;

  33:         st.wMinute = (short)date.Minute;

  34:         st.wSecond = (short)date.Second;

  35:         st.wMilliseconds = (short)date.Millisecond;

  36:  

  37:         SetSystemTime(ref st);

  38:     }

  39:  

  40:     /// <summary>

  41:     /// Get the Local System DateTime

  42:     /// </summary>

  43:     /// <returns></returns>

  44:     public static DateTime GetDateTime()

  45:     {

  46:         SYSTEMTIME st = new SYSTEMTIME();

  47:         GetSystemTime(ref st);

  48:  

  49:         return new DateTime(st.wYear, st.wMonth, st.wDay,

  50:             st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);

  51:     }

  52: }