Unix时间戳转换

        /// <summary>
        /// 将Unix时间戳转换为DateTime类型时间
        /// </summary>
        /// <param name="d">double 型数字</param>
        /// <returns>DateTime</returns>
        public static System.DateTime ConvertIntDateTime(double d)
        {
            //SQL Server 转换:select DATEADD(s, 1516866377, '1970-01-01 00:00:00')
            //MySql 转换： FROM_UNIXTIME(1516866377)as servertime
//MySql 毫秒格式时间戳转换  要除以1000就变成秒格式  FROM_UNIXTIME(floor((1528681728997/1000)))as curtime


            System.DateTime time = System.DateTime.MinValue;
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
            time = startTime.AddSeconds(d);
            return time;
        }




        /// <summary>
        /// 将c# DateTime时间格式转换为Unix时间戳格式
        /// 直接用(DateTime.Now.ToUniversalTime().Ticks - 621355968000000000) / 10000000 可获得当前时间的Unix时间戳
        /// </summary>
        /// <param name="time">时间</param>
        /// <returns>double</returns>
        public static double ConvertDateTimeInt(System.DateTime time)
        {
            //SQL Server 转换:SELECT DATEDIFF(s, '1970-01-01 00:00:00', GETUTCDATE())

            double intResult = 0;
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
            intResult = (time - startTime).TotalSeconds;
            return intResult;
        }

Unix时间戳在线转换工具

http://tools.sharejs.com/unixtime.html

tool.chinaz.com/Tools/unixtime.aspx