C# 日期转换

• 1、 // 获取时间戳

        public int GetTimeStamp(DateTime dt)
        {
            DateTime dateStart = new DateTime(1970, 1, 1, 8, 0, 0);
            int timeStamp = Convert.ToInt32((dt - dateStart).TotalSeconds);
            return timeStamp;

        }

• 2、 // 时间戳转为日期格式

        public DateTime StampToDateTime(string timeStamp)
        {
            DateTime dateTimeStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
            long lTime = long.Parse(timeStamp + "0000000");
            TimeSpan toNow = new TimeSpan(lTime);
            return dateTimeStart.Add(toNow);
        }

• 3、返回时间间隔

public static string DateDiff(DateTime DateTime1, DateTime DateTime2)
        {
            string dateDiff = null;
            try
            {
                TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);
                TimeSpan ts2 = new TimeSpan(DateTime2.Ticks);
                TimeSpan ts = ts1.Subtract(ts2).Duration();
                string day = ts.Days.ToString(), hours = ts.Hours.ToString(), minutes = ts.Minutes.ToString(), seconds = ts.Seconds.ToString();
                dateDiff = day + "天" + hours + "时" + minutes + "分" + seconds + "秒";
            }
            catch
            {

            }
            return dateDiff;
        }