blocks|key|1416207|text|这是C#中人们做的一件很常见的事情，但是还没有相应的库。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1416208|我创建这个迷你库https://gist.github.com/1095252是为了让我的生活(我希望你的也是)变得更容易。|offset|length|1416209|entityMap|0|LINK|mutability|MUTABLE|url|https://gist.github.com/1095252^0|0|8|V|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

This is a very common thing people in C# do, yet there is no library for that.

I created this mini library <a href="https://gist.github.com/1095252" rel="noreferrer">https://gist.github.com/1095252</a> to make my life (I hope yours too) easier.

blocks|key|1201009|text|//+This+is+an+example+of+a+UNIX+timestamp+for+the+date/time+11-04-2005+09:25.
double+timestamp+=+1113211532;

//+First+make+a+System.DateTime+equivalent+to+the+UNIX+Epoch.
System.DateTime+dateTime+=+new+System.DateTime(1970,+1,+1,+0,+0,+0,+0);

//+Add+the+number+of+seconds+in+UNIX+timestamp+to+be+converted.
dateTime+=+dateTime.AddSeconds(timestamp);

//+The+dateTime+now+contains+the+right+date/time+so+to+format+the+string,
//+use+the+standard+formatting+methods+of+the+DateTime+object.
string+printDate+=+dateTime.ToShortDateString()+%2B"+"%2B+dateTime.ToShortTimeString();

//+Print+the+date+and+time
System.Console.WriteLine(printDate);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1201010|来源：http://www.codeproject.com/KB/cs/timestamp.aspx|unstyled|offset|length|1201011|entityMap|0|LINK|mutability|MUTABLE|url|http://www.codeproject.com/KB/cs/timestamp.aspx^0|0|3|1B|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|R|8|@]|9|@$G|S|H|T|1|U]]|A|$]]|$1|I|3|-4|5|F|7|V|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]]]

<pre><code>// This is an example of a UNIX timestamp for the date/time 11-04-2005 09:25.
double timestamp = 1113211532;

// First make a System.DateTime equivalent to the UNIX Epoch.
System.DateTime dateTime = new System.DateTime(1970, 1, 1, 0, 0, 0, 0);

// Add the number of seconds in UNIX timestamp to be converted.
dateTime = dateTime.AddSeconds(timestamp);

// The dateTime now contains the right date/time so to format the string,
// use the standard formatting methods of the DateTime object.
string printDate = dateTime.ToShortDateString() +" "+ dateTime.ToShortTimeString();

// Print the date and time
System.Console.WriteLine(printDate);
</code></pre>

Surce: <a href="http://www.codeproject.com/KB/cs/timestamp.aspx" rel="noreferrer">http://www.codeproject.com/KB/cs/timestamp.aspx</a>

blocks|key|1416169|text|var+date+=+(new+DateTime(1970,+1,+1,+0,+0,+0,+DateTimeKind.Utc))
+++++++++++++++.AddSeconds(
+++++++++++++++double.Parse(yourString,+CultureInfo.InvariantCulture));|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1416170|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>var date = (new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc))
 .AddSeconds(
 double.Parse(yourString, CultureInfo.InvariantCulture));
</code></pre>

blocks|key|1416260|text|我意识到这是一个相当古老的问题，但我想我应该发布我的解决方案，它使用了哪个has+a+method+specifically+for+this的Nodatime's+Instant类。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1416261|Instant.FromSecondsSinceUnixEpoch(longSecondsSinceEpoch).ToDateTimeUtc();|code-block|syntax|javascript|1416262|我完全明白，对某些人来说，引入Nodatime可能会很沉重。对于我的项目来说，依赖关系膨胀并不是一个主要的问题，我宁愿依赖于维护的库解决方案，而不是不得不维护自己的库解决方案。|1416263|entityMap|0|LINK|mutability|MUTABLE|url|http://nodatime.org/1.1.x/api/html/M_NodaTime_Instant_FromSecondsSinceUnixEpoch.htm|1|http://nodatime.org/^0|11|Y|0|20|A|1|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]|$A|Y|B|Z|1|10]]|C|$]]|$1|D|3|E|5|F|7|11|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|12|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]|S|$5|N|O|P|C|$Q|T]]]]

I realize this is a fairly old question but I figured I'd post my solution which used <a href="http://nodatime.org" rel="nofollow">Nodatime's</a> Instant class which <a href="http://nodatime.org/1.1.x/api/html/M_NodaTime_Instant_FromSecondsSinceUnixEpoch.htm" rel="nofollow">has a method specifically for this</a>.

<pre><code>Instant.FromSecondsSinceUnixEpoch(longSecondsSinceEpoch).ToDateTimeUtc();
</code></pre>

I totally get that maybe pulling in Nodatime might be heavy for some folks. For my projects where dependency bloat isn't a major concern I'd rather rely on maintained library solutions rather than having to maintain my own.

blocks|key|1416283|text|从.NET+4.6开始，您可以使用DateTimeOffset.FromUnixTimeSeconds()和DateTimeOffset.FromUnixTimeMilliseconds()|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1416284|long+unixTime+=+1600000000;
DateTimeOffset+dto+=+DateTimeOffset.FromUnixTimeSeconds(unixTime);
DateTime+dt+=+dto.DateTime;|code-block|syntax|javascript|1416285|entityMap^0|H|10|1I|15|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

Since .NET 4.6, you can use <code>DateTimeOffset.FromUnixTimeSeconds()</code> and <code>DateTimeOffset.FromUnixTimeMilliseconds()</code>:
<pre class="lang-cs prettyprint-override"><code>long unixTime = 1600000000;
DateTimeOffset dto = DateTimeOffset.FromUnixTimeSeconds(unixTime);
DateTime dt = dto.DateTime;
</code></pre>

blocks|key|1416117|text|MSDN+DateTime+docs万岁！另请参阅TimeSpan。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1416118|//+First+make+a+System.DateTime+equivalent+to+the+UNIX+Epoch.
System.DateTime+dateTime+=+new+System.DateTime(1970,+1,+1,+0,+0,+0,+0);
//+Add+the+number+of+seconds+in+UNIX+timestamp+to+be+converted.
dateTime+=+dateTime.AddSeconds(numSeconds);
//+Then+add+the+number+of+milliseconds
dateTime+=+dateTime.Add(TimeSpan.FromMilliseconds(numMilliseconds));|code-block|syntax|javascript|1416119|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.datetime.aspx|1|http://msdn.microsoft.com/en-us/library/system.timespan.aspx^0|0|I|0|P|8|1|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]|$A|W|B|X|1|Y]]|C|$]]|$1|D|3|E|5|F|7|Z|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|10|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]|Q|$5|L|M|N|C|$O|R]]]]

Hooray for <a href="http://msdn.microsoft.com/en-us/library/system.datetime.aspx" rel="nofollow noreferrer">MSDN DateTime docs</a>! Also see <a href="http://msdn.microsoft.com/en-us/library/system.timespan.aspx" rel="nofollow noreferrer">TimeSpan</a>.

<pre><code>// First make a System.DateTime equivalent to the UNIX Epoch.
System.DateTime dateTime = new System.DateTime(1970, 1, 1, 0, 0, 0, 0);
// Add the number of seconds in UNIX timestamp to be converted.
dateTime = dateTime.AddSeconds(numSeconds);
// Then add the number of milliseconds
dateTime = dateTime.Add(TimeSpan.FromMilliseconds(numMilliseconds));
</code></pre>

blocks|key|1201038|text|这是来自a+blog+posting+by+Stefan+Henke的|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1201039|private+string+conv_Timestamp2Date+(int+Timestamp)
{
++++++++++++//++calculate+from+Unix+epoch
++++++++++++System.DateTime+dateTime+=+new+System.DateTime(1970,+1,+1,+0,+0,+0,+0);
++++++++++++//+add+seconds+to+timestamp
++++++++++++dateTime+=+dateTime.AddSeconds(Timestamp);
++++++++++++string+Date+=+dateTime.ToShortDateString()+%2B",+"%2B+dateTime.ToShortTimeString();

++++++++++++return+Date;
}|code-block|syntax|javascript|1201040|entityMap|0|LINK|mutability|MUTABLE|url|http://dotnet-snippets.de/dns/c-unix-timestamp-in-datum-wandeln-SID164.aspx^0|4|U|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

This is from <a href="http://dotnet-snippets.de/dns/c-unix-timestamp-in-datum-wandeln-SID164.aspx" rel="nofollow noreferrer">a blog posting by Stefan Henke</a>:

<pre><code>private string conv_Timestamp2Date (int Timestamp)
{
 // calculate from Unix epoch
 System.DateTime dateTime = new System.DateTime(1970, 1, 1, 0, 0, 0, 0);
 // add seconds to timestamp
 dateTime = dateTime.AddSeconds(Timestamp);
 string Date = dateTime.ToShortDateString() +", "+ dateTime.ToShortTimeString();

 return Date;
}
</code></pre>

blocks|key|1416219|text|在这里，它是一个方便的扩展方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1416220|++public+static+DateTime+UnixTime(this+string+timestamp)
++++{
++++++++var+dateTime+=+new+DateTime(1970,+1,+1,+0,+0,+0,+0);
++++++++return+dateTime.AddSeconds(int.Parse(timestamp));
++++}|code-block|syntax|javascript|1416221|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here it is as a handy extension method

<pre><code> public static DateTime UnixTime(this string timestamp)
 {
 var dateTime = new DateTime(1970, 1, 1, 0, 0, 0, 0);
 return dateTime.AddSeconds(int.Parse(timestamp));
 }
</code></pre>

Is there a way to quickly / easily parse Unix time in C# ? I'm brand new at the language, so if this is a painfully obvious question, I apologize. IE I have a string in the format [seconds since Epoch].[milliseconds]. Is there an equivalent to Java's SimpleDateFormat in C# ?

Parsing unix time in C#

Java

Unix

有没有一种方法可以在C#中快速/轻松地解析Unix时间？我是一个全新的语言，所以如果这是一个令人痛苦的显而易见的问题，我道歉。即我有一个格式为秒的字符串，从Epoch.milliseconds开始。在C#中有没有与Java的SimpleDateFormat等价物？

问在C#中解析unix时间
EN

回答 8

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问在C#中解析unix时间EN

回答 8

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问在C#中解析unix时间
EN