怎么获取time.nist.gov服务器的系统啊

Question

怎么获取time.nist.gov服务器的系统啊

Answer 1

怎么获取time.nist.gov服务器的系统时间啊

Answer 2

参考：http://www.21tx.com/dev/2001/05/16/10120.html

Answer 3

以下代码已测试通过添加命名空间：
using System.Net;
using System.IO;
using System.Text.RegularExpressions; 然后送给你两个函数，一个获得直接nist时间和日期，一个获得对应的中国时间和日期
'获得nist时间和日期
private void GetNistTimeUS( out string time, out string Data )
{
string strNistUrl = "http://nist.time.gov/timezone.cgi?UTC/s/0"; System.Net.WebRequest myHttpWebRequest = System.Net.HttpWebRequest.Create( strNistUrl );
System.Net.WebResponse myHttpWebResponse = myHttpWebRequest.GetResponse(); Stream sr = myHttpWebResponse.GetResponseStream();
StreamReader reader = new StreamReader(sr, System.Text.Encoding.ASCII);
String srdata = reader.ReadToEnd();

srdata = srdata.Replace( "\"","\'"); string strOut = Regex.Split( srdata, "color='white'><b>" , RegexOptions.IgnoreCase)[1];
string strTime = Regex.Split( strOut , "<br>", RegexOptions.IgnoreCase )[0];
time = DateTime.Parse( strTime ).ToLongTimeString(); string strOut1 = Regex.Split( srdata, "'5' color='white'>" , RegexOptions.IgnoreCase)[1];
string strData = Regex.Split( strOut1 , "<br>", RegexOptions.IgnoreCase )[0];
Data = DateTime.Parse( strData ).ToShortDateString();
}'获得中国时间和日期
private void GetNistTimeCN( out string time, out string Data )
{
string strNistUrl = "http://nist.time.gov/timezone.cgi?UTC/s/0"; System.Net.WebRequest myHttpWebRequest = System.Net.HttpWebRequest.Create( strNistUrl );
System.Net.WebResponse myHttpWebResponse = myHttpWebRequest.GetResponse(); Stream sr = myHttpWebResponse.GetResponseStream();
StreamReader reader = new StreamReader(sr, System.Text.Encoding.ASCII);
String srdata = reader.ReadToEnd();

srdata = srdata.Replace( "\"","\'"); string strOut = Regex.Split( srdata, "color='white'><b>" , RegexOptions.IgnoreCase)[1];
string strTime = Regex.Split( strOut , "<br>", RegexOptions.IgnoreCase )[0];
time = DateTime.Parse( strTime ).AddHours( 8 ).ToLongTimeString(); string strOut1 = Regex.Split( srdata, "'5' color='white'>" , RegexOptions.IgnoreCase)[1];
string strData = Regex.Split( strOut1 , "<br>", RegexOptions.IgnoreCase )[0];

int intHourCn = int.Parse( time.Split( ':' )[0] );
int intHourUS = int.Parse( DateTime.Parse( strTime ).ToLongTimeString().Split( ':' )[0] ); if ( intHourCn < intHourUS )
{
Data = DateTime.Parse( strData ).AddDays(1).ToShortDateString();
}
else
{
Data = DateTime.Parse( strData ).ToShortDateString();
}
}

Answer 4

[DllImport("Kernel32.dll")]
        public static extern bool SetSystemTime(ref SystemTime sysTime);        [StructLayout(LayoutKind.Sequential)]
        public struct SystemTime
        {
            public ushort wYear;
            public ushort wMonth;
            public ushort wDayOfWeek;
            public ushort wDay;
            public ushort wHour;
            public ushort wMinute;
            public ushort wSecond;
            public ushort wMiliseconds;
        }  /// <summary>
        /// 设置系统时间
        /// </summary>
        /// <param name="sDate">2006-5-20</param>
        /// <param name="sTime">20:32:20</param>
        public static void setSystemTime(string sDate, string sTime)
        {
            int iTmpTimeVal = 0;            string sYYYY = string.Empty;
            string sMM = string.Empty;
            string sDD = string.Empty;
            string sHH = string.Empty;
            string sMinute = string.Empty;
            string sSecond = string.Empty;            sYYYY = sDate.Substring(0, sDate.IndexOf("-"));
            sDate = sDate.Substring(sDate.IndexOf("-") + 1);            sMM = sDate.Substring(0, sDate.IndexOf("-"));
            sDate = sDate.Substring(sDate.IndexOf("-") + 1);            sDD = sDate;            sHH = sTime.Substring(0, sTime.IndexOf(":"));
            sTime = sTime.Substring(sTime.IndexOf(":") + 1);            sMinute = sTime.Substring(0, sTime.IndexOf(":"));
            sTime = sTime.Substring(sTime.IndexOf(":") + 1);            sSecond = sTime;                                  SystemTime systemTime = new SystemTime();
            systemTime.wYear = Convert.ToUInt16(sYYYY);
            systemTime.wMonth = Convert.ToUInt16(sMM);
            systemTime.wDay = Convert.ToUInt16(sDD);
            systemTime.wHour = Convert.ToUInt16(sHH);
            systemTime.wMinute = Convert.ToUInt16(sMinute);
            systemTime.wSecond = Convert.ToUInt16(sSecond);            if (SetSystemTime(ref systemTime))
            { }
        }

Answer 5

/// <summary>
        /// 获得nist时间和日期
        /// </summary>
        /// <param name="time"></param>
        /// <param name="Data"></param>
        public static DateTime? GetNistTimeUS()
        {
            DateTime? dt=null;
            try
            {
                string strNistUrl = "http://nist.time.gov/timezone.cgi?UTC/s/0";                System.Net.WebRequest myHttpWebRequest = System.Net.HttpWebRequest.Create(strNistUrl);
                System.Net.WebResponse myHttpWebResponse = myHttpWebRequest.GetResponse();                Stream sr = myHttpWebResponse.GetResponseStream();
                StreamReader reader = new StreamReader(sr, System.Text.Encoding.ASCII);
                String srdata = reader.ReadToEnd();                srdata = srdata.Replace("\"", "\'");                string strOut = Regex.Split(srdata, "color='white'><b>", RegexOptions.IgnoreCase)[1];
                string strTime = Regex.Split(strOut, "<br>", RegexOptions.IgnoreCase)[0];
                
                string strOut1 = Regex.Split(srdata, "'5' color='white'>", RegexOptions.IgnoreCase)[1];
                string strData = Regex.Split(strOut1, "<br>", RegexOptions.IgnoreCase)[0];                dt = DateTime.Parse(strData + " " + strTime);
            }
            catch
            {
            }
            return dt;
        }