blocks|key|1043918|text|我想我有一个更简单的解决方案--将初始日期设置为纪元，然后添加UTC单位。假设您有一个以秒为单位存储的UTC纪元变量。那1234567890呢？要将该日期转换为当地时区中的适当日期：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1043919|var+utcSeconds+=+1234567890;
var+d+=+new+Date(0);+//+The+0+there+is+the+key,+which+sets+the+date+to+the+epoch
d.setUTCSeconds(utcSeconds);|code-block|syntax|javascript|1043920|现在，d是设置为Fri+Feb+13+2009+18:31:30+GMT-0500+(EST)的日期(在我的时区内|1043921|entityMap^0|1O|A|0|0|3|1|8|13|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|N|$]]

I think I have a simpler solution -- set the initial date to the epoch and add UTC units. Say you have a UTC epoch var stored in seconds. How about <code>1234567890</code>. To convert that to a proper date in the local time zone:

<pre><code>var utcSeconds = 1234567890;
var d = new Date(0); // The 0 there is the key, which sets the date to the epoch
d.setUTCSeconds(utcSeconds);
</code></pre>

<code>d</code> is now a date (in my time zone) set to <code>Fri Feb 13 2009 18:31:30 GMT-0500 (EST)</code>

blocks|key|829102|text|这很简单，new+Date()只需要几毫秒，例如|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|829103|new+Date(1394104654000)
>+Thu+Mar+06+2014+06:17:34+GMT-0500+(EST)|code-block|syntax|javascript|829104|entityMap^0|5|A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

It's easy, <code>new Date()</code> just takes milliseconds, e.g. 

<pre><code>new Date(1394104654000)
&gt; Thu Mar 06 2014 06:17:34 GMT-0500 (EST)
</code></pre>

blocks|key|1043987|text|为了记录日志，我使用了Moment.js库，无论如何我都是用它来格式化的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1043988|moment.utc(1234567890000).local()
>Fri+Feb+13+2009+19:01:30+GMT-0430+(VET)|code-block|syntax|javascript|1043989|entityMap|0|LINK|mutability|MUTABLE|url|http://momentjs.com/docs/#/manipulating/local/^0|B|9|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]]]]

And just for the logs, I did this using <a href="http://momentjs.com/docs/#/manipulating/local/" rel="noreferrer">Moment.js</a> library, which I was using for formatting anyway.

<pre><code>moment.utc(1234567890000).local()
&gt;Fri Feb 13 2009 19:01:30 GMT-0430 (VET)
</code></pre>

blocks|key|1043950|text|+function+ToLocalDate+(inDate)+{
++++var+date+=+new+Date();
++++date.setTime(inDate.valueOf()+-+60000+*+inDate.getTimezoneOffset());
++++return+date;
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1043951|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> function ToLocalDate (inDate) {
 var date = new Date();
 date.setTime(inDate.valueOf() - 60000 * inDate.getTimezoneOffset());
 return date;
}
</code></pre>

blocks|key|1044115|text|@djechlin对上述答案的补充|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1044116|d+=+'1394104654000';
new+Date(parseInt(d));|code-block|syntax|javascript|1044117|将纪元时间转换为人类可读的日期。但不要忘记，纪元时间的类型必须是一个整数。|1044118|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Addition to the above answer by @djechlin

<pre><code>d = '1394104654000';
new Date(parseInt(d));
</code></pre>

converts EPOCH time to human readable date. Just don't forget that type of EPOCH time must be an Integer.

blocks|key|1044160|text|var+myDate+=+new+Date(+your+epoch+date+*1000);|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1044161|来源-+https://www.epochconverter.com/programming/#javascript|1044162|entityMap|0|LINK|mutability|MUTABLE|url|https://www.epochconverter.com/programming/#javascript^0|0|1A|0|4|1I|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@]|D|@$9|T|A|U|1|V]]|E|$]]|$1|H|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

<code>var myDate = new Date( your epoch date *1000);</code>

source - <a href="https://www.epochconverter.com/programming/#javascript" rel="nofollow noreferrer">https://www.epochconverter.com/programming/#javascript</a>

blocks|key|1043838|text|您只是要求将UTC字符串转换为“本地”字符串吗？你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1043839|var+utc_string+=+'2011-09-05+20:05:15';
var+local_string+=+(function(dtstr)+{
++++var+t0+=+new+Date(dtstr);
++++var+t1+=+Date.parse(t0.toUTCString().replace('GMT',+''));
++++var+t2+=+(2+*+t0)+-+t1;
++++return+new+Date(t2).toString();
})(utc_string);|code-block|syntax|javascript|1043840|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|$]]

Are you just asking to convert a UTC string to a "local" string? You could do:

<pre><code>var utc_string = '2011-09-05 20:05:15';
var local_string = (function(dtstr) {
 var t0 = new Date(dtstr);
 var t1 = Date.parse(t0.toUTCString().replace('GMT', ''));
 var t2 = (2 * t0) - t1;
 return new Date(t2).toString();
})(utc_string);
</code></pre>

blocks|key|829252|text|我找到的最简单的解决方案是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|829253|var+timestamp+=+Date.now(),+//+returns+milliseconds+since+epoch+time
++++normalisedTime+=+new+Date(timestamp);|code-block|syntax|javascript|829254|请注意，这条new+Date(timestamp)语句的末尾没有*+1000，如下所示(对我来说是这样的！)似乎总是给出错误的日期，即不是给出2019年，而是给出51015年，所以请记住这一点。|offset|length|style|CODE|829255|entityMap^0|0|0|6|J|W|6|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

The simplest solution I've found to this, is:

<pre><code>var timestamp = Date.now(), // returns milliseconds since epoch time
 normalisedTime = new Date(timestamp);
</code></pre>

Notice this doesn't have the <code>* 1000</code> at the end of <code>new Date(timestamp)</code> statement as this (for me anyway!) always seems to give out the wrong date, ie instead of giving the year 2019 it gives the year as 51015, so just bear that in mind.

blocks|key|829117|text|考虑到，您有可用的epoch_time，|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|829118|//+for+eg.+epoch_time+=+1487086694.213
var+date+=+new+Date(epoch_time+*+1000);+//+multiply+by+1000+for+milliseconds
var+date_string+=+date.toLocaleString('en-GB');++//+24+hour+format|code-block|syntax|javascript|829119|entityMap^0|9|A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Considering, you have <code>epoch_time</code> available, 

<pre><code>// for eg. epoch_time = 1487086694.213
var date = new Date(epoch_time * 1000); // multiply by 1000 for milliseconds
var date_string = date.toLocaleString('en-GB'); // 24 hour format
</code></pre>

blocks|key|828946|text|@Amjad，好主意，但更好的实现应该是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|828947|Date.prototype.setUTCTime+=+function(UTCTimestamp)+{
++++var+UTCDate+=+new+Date(UTCTimestamp);
++++this.setUTCFullYear(UTCDate.getFullYear(),+UTCDate.getMonth(),+UTCDate.getDate());
++++this.setUTCHours(UTCDate.getHours(),+UTCDate.getMinutes(),+UTCDate.getSeconds(),+UTCDate.getMilliseconds());
++++return+this.getTime();
}|code-block|syntax|javascript|828948|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|$]]

@Amjad, good idea, but a better implementation would be: 

<pre><code>Date.prototype.setUTCTime = function(UTCTimestamp) {
 var UTCDate = new Date(UTCTimestamp);
 this.setUTCFullYear(UTCDate.getFullYear(), UTCDate.getMonth(), UTCDate.getDate());
 this.setUTCHours(UTCDate.getHours(), UTCDate.getMinutes(), UTCDate.getSeconds(), UTCDate.getMilliseconds());
 return this.getTime();
}
</code></pre>

I have been fighting with this for a bit now. I’m trying to convert epoch to a date object. The epoch is sent to me in UTC. Whenever you pass <code>new Date()</code> an epoch, it assumes it’s local epoch. I tried creating a UTC object, then using <code>setTime()</code> to adjust it to the proper epoch, but the only method that seems useful is <code>toUTCString()</code> and strings don’t help me. If I pass that string into a new date, it should notice that it’s UTC, but it doesn’t.

<pre><code>new Date( new Date().toUTCString() ).toLocaleString()
</code></pre>

My next attempt was to try to get the difference between local current epoch and UTC current epoch, but I wasn’t able to get that either.

<pre><code>new Date( new Date().toUTCString() ).getTime() - new Date().getTime()
</code></pre>

It’s only giving me very small differences, under 1000, which is in milliseconds.

Any suggestions?

Convert UTC Epoch to local date

我已经为此斗争了一段时间了。我正在尝试将epoch转换为date对象。纪元是用UTC发送给我的。无论何时向new Date()传递一个纪元，它都假定它是本地纪元。我尝试创建一个UTC对象，然后使用setTime()将其调整为适当的纪元，但唯一有用的方法是toUTCString()，而字符串对我没有帮助。如果我将这个字符串传递到一个新的日期中，它应该注意到它是UTC，但它不是。new Date( n

问将UTC纪元转换为本地日期
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