Вопрос по c#, .net – Получить точное время для удаленного сервера

В C #, как я могу запросить удаленный сервер для его текущего времени?

Подобная функциональность

net time \\servername

но возвращает дату, которая включает в себя секунды.




Error: User Rate Limit Exceeded

System.Net.Sockets.TcpClient t = new System.Net.Sockets.TcpClient ("yourmachineHOST", 13);
System.IO.StreamReader rd = new System.IO.StreamReader (t.GetStream ()); 
Console.WriteLine (rd.ReadToEnd ());

Error: User Rate Limit ExceededError: User Rate Limit ExceededError: User Rate Limit ExceededError: User Rate Limit ExceededError: User Rate Limit Exceeded


If you have access to the filesystem of the remote system with a UNC pathError: User Rate Limit Exceeded\\remotehost\foo\barError: User Rate Limit Exceededeven if it's not a Windows systemError: User Rate Limit Exceeded

public DateTime filesystemDateTime(string path)
    //create temp file
    string tempFilePath = Path.Combine(path, "lampo.tmp");
,    using (File.Create(tempFilePath)) { }
    //read creation time and use it as current source filesystem datetime
    DateTime dt = new FileInfo(tempFilePath).LastWriteTime;
    //delete temp file

    return dt;

class RemoteSystemTime 
        static void Main(string[] args)
                string machineName = "vista-pc";

                System.Diagnostics.Process proc = new System.Diagnostics.Process();
                proc.StartInfo.UseShellExecute = false;
                proc.StartInfo.RedirectStandardOutput = true;
                proc.StartInfo.FileName = "net";
                proc.StartInfo.Arguments = @"time \\" + machineName;

                List<string> results = new List<string>();
                while (!proc.StandardOutput.EndOfStream)
                    string currentline = proc.StandardOutput.ReadLine();
                    if (!string.IsNullOrEmpty(currentline))

                string currentTime = string.Empty;
                if (results.Count > 0 && results[0].ToLower().StartsWith(@"current time at \\" +                                               machineName.ToLower() + " is "))
                    currentTime = results[0].Substring((@"current time at \\" + machineName.ToLower() + " is                             ").Length);


            catch (Exception ex)

Error: User Rate Limit ExceededError: User Rate Limit ExceededError: User Rate Limit Exceeded

InternetTime.SNTPClient sntp = new InternetTime.SNTPClient("ntp1.ja.net");
sntp.Connect(false); // true to update local client clock
DateTime dt = sntp.DestinationTimestamp.AddMilliseconds(sntp.LocalClockOffset);
string timeStampNow = dt.ToString("dd/MM/yyyy HH:mm:ss.fff");

Error: User Rate Limit ExceededError: User Rate Limit ExceededError: User Rate Limit Exceeded

Error: User Rate Limit ExceededError: User Rate Limit Exceeded:

// The pointer.
IntPtr pintBuffer = IntPtr.Zero;

// Get the time of day.
int pintError = NetRemoteTOD(@"\\sony_laptop", ref pintBuffer);

// Get the structure.
Marshal.PtrToStructure(pintBuffer, typeof(TIME_OF_DAY_INFO));

// Free the buffer.

Error: User Rate Limit Exceeded

Error: User Rate Limit ExceededDateTime? now = RemoteTOD.GetNow(@"\\ServerName");

using System;
using System.ComponentModel;
using System.Runtime.InteropServices;

public static class RemoteTOD {

    // Important: CharSet must be Unicode otherwise error 2184 is returned
    [DllImport("netapi32.dll", SetLastError=true, CharSet=CharSet.Unicode)]
    private static extern int NetRemoteTOD(String UncServerName, ref IntPtr BufferPtr);

    private static extern void NetApiBufferFree(IntPtr bufptr);

    public static DateTime? GetNow(String serverName, bool throwException = false) {
        IntPtr ptrBuffer = IntPtr.Zero;
        int result = NetRemoteTOD(serverName, ref ptrBuffer);
        if (result != 0) {
            if (throwException)
                throw new Win32Exception(Marshal.GetLastWin32Error());
            return null;

        TIME_OF_DAY_INFO tod = (TIME_OF_DAY_INFO) Marshal.PtrToStructure(ptrBuffer, typeof(TIME_OF_DAY_INFO));
        NetApiBufferFree(ptrBuffer); // must be freed using NetApiBufferFree according to the documentation

        //DateTime d0 = new DateTime(1970,1,1);
        //d0 = d0.AddSeconds(tod.elapsedt);
        DateTime nowUtc = new DateTime(tod.year, tod.month, tod.day, tod.hour, tod.minute, tod.second, 10 * tod.hunds);
        DateTime now = nowUtc.ToLocalTime();
        return now;

public struct TIME_OF_DAY_INFO {

    ///<summary>The number of seconds since 00:00:00, January 1, 1970, GMT.</summary>
    public int elapsedt;

    ///<summary>The number of milliseconds from an arbitrary starting point (system reset). Typically, this member is read twice,
    ///once when the process begins and again at the end. To determine the elapsed time between the process's start and finish,
    ///you can subtract the first value from the second.</summary>
    public int msecs;

    ///<summary>The current hour. Valid values are 0 through 23.</summary>
    public int hour;

    ///<summary>The current minute. Valid values are 0 through 59.</summary>
    public int minute;

    ///<summary>The current second. Valid values are 0 through 59.</summary>
    public int second;

    ///<summary>The current hundredth second (0.01 second). Valid values are 0 through 99.</summary>
    public int hunds;

    ///<summary>The time zone of the server. This value is calculated, in minutes, from Greenwich Mean Time (GMT). For time zones
    ///west of Greenwich, the value is positive; for time zones east of Greenwich, the value is negative. A value of –1 indicates
    ///that the time zone is undefined.</summary>
    public int timezone;

    ///<summary>The time interval for each tick of the clock. Each integral integer represents one ten-thousandth second (0.0001 second).</summary>
    public int tinterval;

    ///<summary>The day of the month. Valid values are 1 through 31.</summary>
    public int day;

    ///<summary>The month of the year. Valid values are 1 through 12.</summary>
    public int month;

    ///<summary>The year.</summary>
    public int year;

    ///<summary>The day of the week. Valid values are 0 through 6, where 0 is Sunday, 1 is Monday, and so on.</summary>
    public int weekday;