我想在我的应用程序中获得有效的时间戳，所以我写了:
public static String GetTimestamp(DateTime value)
{
return value.ToString("yyyyMMddHHmmssffff");
}
// ...later on in the code
String timeStamp = GetTimestamp(new DateTime());
Console.WriteLine(timeStamp);
输出:
000101010000000000
我想要的是:
20140112180244
我做错了什么?
您的错误在于使用了new DateTime()，它返回1月1日0001的00:00:00.000，而不是当前的日期和时间。获取当前日期和时间的正确语法是DateTime。现在，改变这个:
String timeStamp = GetTimestamp(new DateTime());
:
String timeStamp = GetTimestamp(DateTime.Now);
var timestamp = DateTime.Now.ToFileTime();
//output: 132260149842749745
这是对不同事务进行个性化的另一种方法。不是unix时间，而是windows文件时间。
从文档中可以看出:
A Windows file time is a 64-bit value that represents the number of 100-
nanosecond intervals that have elapsed since 12:00 midnight, January 1, 1601
A.D. (C.E.) Coordinated Universal Time (UTC).
Int32 unixTimestamp = (Int32)(TIME.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
"TIME"是你想获取unix时间戳的DateTime对象。
UTC的:
string unixTimestamp = Convert.ToString((int)DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1)).TotalSeconds);
本地系统:
string unixTimestamp = Convert.ToString((int)DateTime.Now.Subtract(new DateTime(1970, 1, 1)).TotalSeconds);
internal static string UnixToDate(int Timestamp, string ConvertFormat)
{
DateTime ConvertedUnixTime = DateTimeOffset.FromUnixTimeSeconds(Timestamp).DateTime;
return ConvertedUnixTime.ToString(ConvertFormat);
}
int Timestamp = (int)DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1)).TotalSeconds;
用法:
UnixToDate(1607013172, "HH:mm:ss"); // Output 16:32:52
Timestamp; // Output 1607013172
