C# 修改系統時間

 

/// <summary>
    /// 同步服務時間 /// </summary>
    public class SyncServerTime { //設置系統時間的API函數
        [DllImport("kernel32.dll")] private static extern bool SetLocalTime(ref SYSTEMTIME time); [StructLayout(LayoutKind.Sequential)] private struct SYSTEMTIME { public short year; public short month; public short dayOfWeek; public short day; public short hour; public short minute; public short second; public short milliseconds; } /// <summary>
        /// 設置系統時間 /// </summary>
        /// <param name="dt">需要設置的時間</param>
        /// <returns>返回系統時間設置狀態，true為成功，false為失敗</returns>
        public static bool SetDate(DateTime dt) { SYSTEMTIME st; st.year = (short)dt.Year; st.month = (short)dt.Month; st.dayOfWeek = (short)dt.DayOfWeek; st.day = (short)dt.Day; st.hour = (short)dt.Hour; st.minute = (short)dt.Minute; st.second = (short)dt.Second; st.milliseconds = (short)dt.Millisecond; bool rt = SetLocalTime(ref st); return rt; } }

運行中如果是返回false。 
經過研究發現原來時我的程序運行在win8系統上需要管理員權限，然后程序作如下配置即可：