mirror of
https://github.com/proxysu/ProxySU.git
synced 2024-11-23 05:36:08 +03:00
87 lines
2.7 KiB
C#
87 lines
2.7 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Net;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace ProxySuper.Core.Helpers
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{
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public static class DateTimeUtils
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{
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/// <summary>
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/// 从国家授时中心获取标准GMT时间,读取https://www.tsa.cn
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/// GMT时间与UTC时间没有差别,可以UTC=GMT
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/// </summary>
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/// <returns>返回网络时间</returns>
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public static DateTime GetUTCTime()
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{
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DateTime time;
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try
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{
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.tsa.cn");
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request.Method = "HEAD";
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request.AllowAutoRedirect = false;
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HttpWebResponse reponse = (HttpWebResponse)request.GetResponse();
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string cc = reponse.GetResponseHeader("date");
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reponse.Close();
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bool s = GMTStrParse(cc, out time);
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return time;
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}
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catch
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{
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return new DateTime(1970, 1, 1, 0, 0, 0, 0);
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}
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}
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public static bool GMTStrParse(string gmtStr, out DateTime gmtTime) //抓取的date是GMT格式的字符串,这里转成datetime
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{
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CultureInfo enUS = new CultureInfo("en-US");
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bool s = DateTime.TryParseExact(gmtStr, "r", enUS, DateTimeStyles.None, out gmtTime);
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return s;
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}
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//设置系统时间的API函数
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[DllImport("kernel32.dll")]
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private static extern bool SetLocalTime(ref SYSTEMTIME time);
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[StructLayout(LayoutKind.Sequential)]
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private struct SYSTEMTIME
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{
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public short year;
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public short month;
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public short dayOfWeek;
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public short day;
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public short hour;
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public short minute;
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public short second;
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public short milliseconds;
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}
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/// <summary>
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/// 设置系统时间
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/// </summary>
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/// <param name="dt">需要设置的时间</param>
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/// <returns>返回系统时间设置状态,true为成功,false为失败</returns>
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public static bool SetDate(DateTime dt)
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{
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SYSTEMTIME st;
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st.year = (short)dt.Year;
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st.month = (short)dt.Month;
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st.dayOfWeek = (short)dt.DayOfWeek;
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st.day = (short)dt.Day;
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st.hour = (short)dt.Hour;
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st.minute = (short)dt.Minute;
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st.second = (short)dt.Second;
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st.milliseconds = (short)dt.Millisecond;
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bool rt = SetLocalTime(ref st);
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return rt;
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}
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}
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}
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