An easy way to syncTime using C#
/* * Created by SharpDevelop. * User: Administrator * Date: 2013/10/23 * Time: 8:57 * author zibet */ using System; using System.Net; using System.Windows.Forms; using System.Runtime.InteropServices; namespace SyncTime { /// <summary> /// Description of MainForm. /// </summary> public partial class MainForm : Form { [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; } public MainForm() { InitializeComponent(); } [DllImport("Kernel32.dll")] public static extern bool SetLocalTime(ref SystemTime sysTime); [DllImport("Kernel32.dll")] public static extern void GetLocalTime(ref SystemTime localTime); private DateTime getIntetime(){ return DateTime.Parse(WebRequest.Create("http://www.baidu.com/").GetResponse().Headers.Get("Date")); } void MainFormLoad(object sender, EventArgs e) { SystemTime st = new SystemTime(); DateTime BJTime = getIntetime(); st.wYear = Convert.ToUInt16(BJTime.Year); st.wMonth = Convert.ToUInt16(BJTime.Month); st.wDay = Convert.ToUInt16(BJTime.Day); st.wHour = Convert.ToUInt16(BJTime.Hour); st.wMinute = Convert.ToUInt16(BJTime.Minute); st.wSecond = Convert.ToUInt16(BJTime.Second); if (!SetLocalTime(ref st)) { MessageBox.Show("Sync failed T-T"); return; } MessageBox.Show("Sync done!"); } } }