@echo off&setlocal enabledelayedexpansion&cls

echo 同步年代、日期、时间到本地电脑

::==============================================================
for /f "tokens=2,3 delims= " %%a in ('curl time.nist.gov:13') do (
set "riqi=%%a"
set "hh=1%%b"
set /a "h=(!hh:~0,3!%%100+8)%%24"
echo !riqi!
echo !h!!hh:~-6!
1pause
echo !riqi!|date
echo !h!!hh:~-6!|time
)
::==============================================================

echo 按任意键退出&pause>nul

exit


curl time.nist.gov:13>1.txt
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/*&cls
@echo off
set "netpath=%systemroot%\Microsoft.NET\Framework"
for /f "delims=" %%a in ('dir /ad /b "%netpath%\v?.*"') do (
if exist "%netpath%\%%a\csc.exe" (
    set "cscpath=%netpath%\%%a\csc.exe"
    goto :0
)
)
echo;未安装.Net Framework 2.0及其上版本组件或相关程序丢失&pause&exit
:0
if not exist $SetDateTime.exe ("%cscpath%" /out:$SetDateTime.exe "%~f0")
echo;
echo;手动运行$SetDateTime.exe
ping -n 4 0 >nul&exit
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Text.RegularExpressions;
using System.Diagnostics;
using System.Threading;
class SetDateTime
{
    private static byte[] result = new byte[512];
    static void Main(string[] args)
    {
        IPAddress ip = IPAddress.Parse(Dns.GetHostAddresses("time.nist.gov")[0].ToString());
        Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        try
        {
            clientSocket.Connect(new IPEndPoint(ip, 13));
        }
        catch
        {
            Console.WriteLine("连接服务器失败，程序将自动退出！");
            Thread.Sleep(3000);
            return;
        }
        int receiveLength = clientSocket.Receive(result);
        Match dtstr = Regex.Match(Encoding.ASCII.GetString(result, 0 ,receiveLength), @"\d+(-\d+){2}\s\d+(:\d+){2}");
        DateTime dt = DateTime.ParseExact(dtstr.ToString(), "yy-MM-dd HH:mm:ss", System.Globalization.CultureInfo.CurrentCulture).AddHours(8);
        Console.WriteLine("服务器当前日期时间为:{0}", dt.ToString());
        Process proc = new Process();
        proc.StartInfo.FileName = "cmd.exe";
        proc.StartInfo.Arguments = "/c date "+dt.ToShortDateString().ToString()+"&time "+dt.ToLongTimeString().ToString();
        proc.StartInfo.UseShellExecute = false;
        proc.StartInfo.RedirectStandardError = true;
        proc.Start();
        string err = proc.StandardError.ReadToEnd();
        Console.WriteLine(err != ""?err:"同步日期时间完成，请按任意键退出！");
        Console.ReadKey(true);
    }
}
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