blocks|key|3153683|text|您应该检查Date+object。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3153684|特别是，您可以查看Date对象的getHours()方法。|3153685|getHours()返回从0到23的时间，所以一定要进行相应的处理。我认为0-23更直观一些，因为军事时间是从0-+23，但这取决于你。|3153686|考虑到这一点，代码应该是这样的：|3153687|var+date+=+new+Date();
var+current_hour+=+date.getHours();|code-block|syntax|javascript|3153688|entityMap|0|LINK|mutability|MUTABLE|url|http://www.w3schools.com/jsref/jsref_obj_date.asp|1|http://www.w3schools.com/jsref/jsref_gethours.asp^0|5|B|0|0|G|A|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|D|3|E|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|F|3|G|5|6|7|16|8|@]|9|@]|C|$]]|$1|H|3|I|5|6|7|17|8|@]|9|@]|C|$]]|$1|J|3|K|5|L|7|18|8|@]|9|@]|C|$M|N]]|$1|O|3|-4|5|6|7|19|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]|W|$5|R|S|T|C|$U|X]]]]

You should checkout the <a href="http://www.w3schools.com/jsref/jsref_obj_date.asp">Date object</a>.

In particular, you can look at the <a href="http://www.w3schools.com/jsref/jsref_gethours.asp">getHours()</a> method for the Date object.

getHours() return the time from 0 - 23, so make sure to deal with it accordingly. I think 0-23 is a bit more intuitive since military time runs from 0 - 23, but it's up to you.

With that in mind, the code would be something along the lines of:

<pre><code>var date = new Date();
var current_hour = date.getHours();
</code></pre>

blocks|key|2939290|text|此函数将以以下格式返回日期和时间：YYYY:MM:DD:HH:MM:SS。它也可以在Node.js中工作。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2939291|function+getDateTime()+{

++++var+date+=+new+Date();

++++var+hour+=+date.getHours();
++++hour+=+(hour+<+10+?+"0"+:+"")+%2B+hour;

++++var+min++=+date.getMinutes();
++++min+=+(min+<+10+?+"0"+:+"")+%2B+min;

++++var+sec++=+date.getSeconds();
++++sec+=+(sec+<+10+?+"0"+:+"")+%2B+sec;

++++var+year+=+date.getFullYear();

++++var+month+=+date.getMonth()+%2B+1;
++++month+=+(month+<+10+?+"0"+:+"")+%2B+month;

++++var+day++=+date.getDate();
++++day+=+(day+<+10+?+"0"+:+"")+%2B+day;

++++return+year+%2B+":"+%2B+month+%2B+":"+%2B+day+%2B+":"+%2B+hour+%2B+":"+%2B+min+%2B+":"+%2B+sec;

}|code-block|syntax|javascript|2939292|entityMap^0|H|J|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|$]]

This function will return you the date and time in the following format: <code>YYYY:MM:DD:HH:MM:SS</code>. It also works in Node.js.

<pre><code>function getDateTime() {

 var date = new Date();

 var hour = date.getHours();
 hour = (hour &lt; 10 ? "0" : "") + hour;

 var min = date.getMinutes();
 min = (min &lt; 10 ? "0" : "") + min;

 var sec = date.getSeconds();
 sec = (sec &lt; 10 ? "0" : "") + sec;

 var year = date.getFullYear();

 var month = date.getMonth() + 1;
 month = (month &lt; 10 ? "0" : "") + month;

 var day = date.getDate();
 day = (day &lt; 10 ? "0" : "") + day;

 return year + ":" + month + ":" + day + ":" + hour + ":" + min + ":" + sec;

}
</code></pre>

blocks|key|254724|text|查看moment.js库。它既可以与浏览器一起使用，也可以与Node.JS一起使用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|254725|moment().hour();|code-block|syntax|javascript|254726|或|254727|moment().hours();|254728|而不需要事先编写任何函数。|254729|entityMap|0|LINK|mutability|MUTABLE|url|http://momentjs.com/^0|2|9|2|9|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|H|7|14|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|15|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|16|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|17|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

Check out the <a href="http://momentjs.com/" rel="noreferrer"><code>moment.js</code></a> library. It works with browsers as well as with Node.JS. Allows you to write

<pre><code>moment().hour();
</code></pre>

or

<pre><code>moment().hours();
</code></pre>

without prior writing of any functions.

blocks|key|3153768|text|之前的两个答案肯定都是很好的解决方案。如果你喜欢一个库，我喜欢moment.js+--它不仅仅是获取/格式化日期。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3153769|entityMap|0|LINK|mutability|MUTABLE|url|http://momentjs.com/^0|V|9|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Both prior answers are definitely good solutions. If you're amenable to a library, I like <a href="http://momentjs.com/" rel="noreferrer">moment.js</a> - it does a lot more than just getting/formatting the date.

blocks|key|3153841|text|有一些本机方法可以处理日期|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3153842|const+date+=+new+Date();
let+hours+=+date.getHours();|code-block|syntax|javascript|3153843|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|$]]

There's native method to work with date

<pre><code>const date = new Date();
let hours = date.getHours();
</code></pre>

blocks|key|2939469|text|如果你只需要时间字符串，你可以使用这个表达式(带有一个简单的RegEx)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2939470|new+Date().toISOString().match(/(\d{2}:){2}\d{2}/)[0]
//+"23:00:59"|code-block|syntax|javascript|2939471|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|$]]

If you only want the time string you can use this expression (with a simple RegEx):

<pre><code>new Date().toISOString().match(/(\d{2}:){2}\d{2}/)[0]
// "23:00:59"
</code></pre>

blocks|key|253106|text|var+date+=+new+Date();
var+year+=+date.getFullYear();
var+month+=+date.getMonth()+%2B+1;
month+=+(month+<+10+?+"0"+:+"")+%2B+month;
var+hour+=+date.getHours();
hour+=+(hour+<+10+?+"0"+:+"")+%2B+hour;
var+day++=+date.getDate();
day+=+(hour+>+12+?+""+:+"")+%2B+day+-+1;
day+=+(day+<+10+?+"0"+:+"")+%2B+day;
x+=+":"
console.log(+month+%2B+x+%2B+day+%2B+x+%2B+year+)|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|253107|它将以月、日和年的形式显示日期|unstyled|253108|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>var date = new Date();
var year = date.getFullYear();
var month = date.getMonth() + 1;
month = (month &lt; 10 ? "0" : "") + month;
var hour = date.getHours();
hour = (hour &lt; 10 ? "0" : "") + hour;
var day = date.getDate();
day = (hour &gt; 12 ? "" : "") + day - 1;
day = (day &lt; 10 ? "0" : "") + day;
x = ":"
console.log( month + x + day + x + year )
</code></pre>

It will display the date in the month, day, then the year

blocks|key|258114|text|对于我的实例，我使用它作为全局变量，然后调用它来检查操作时间。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|258115|以下内容来自我的index.js|258116|global.globalDay+=+new+Date().getDay();+

global.globalHours+=+new+Date().getHours();|code-block|syntax|javascript|258117|从另一个文件调用全局的值|258118|++++/*
+++++Days+of+the+Week.
+++++Sunday+=+0,+Monday+=+1,+Tuesday+=+2,+Wensday+=+3,+Thursday+=+4,+Friday+=+5,+Saturday+=+6

+++++Hours+of+the+Day.
+++++0+=+Midnight,+1+=+1am,+12+=+Noon,+18+=+6pm,+23+=+11pm
+++++*/

if+(global.globalDay+===+6+%7C%7C+global.globalDay+===+0)+{
+++++console.log('Its+the+weekend.');
}+else+if+(global.globalDay+>+0+&&+global.globalDay+<+6+&&+global.globalHours+>+8+&&+global.globalHours+<+18)+{
+++++console.log('During+Business+Hours!');
}+else+{
+++++console.log("Outside+of+Business+hours!");
}|258119|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

For my instance i used it as a global and then called its for a time check of when hours of operation.
Below is from my index.js
<pre><code>global.globalDay = new Date().getDay(); 

global.globalHours = new Date().getHours();
</code></pre>
To call the global's value from another file
<pre><code> /*
 Days of the Week.
 Sunday = 0, Monday = 1, Tuesday = 2, Wensday = 3, Thursday = 4, Friday = 5, Saturday = 6

 Hours of the Day.
 0 = Midnight, 1 = 1am, 12 = Noon, 18 = 6pm, 23 = 11pm
 */

if (global.globalDay === 6 || global.globalDay === 0) {
 console.log('Its the weekend.');
} else if (global.globalDay &gt; 0 &amp;&amp; global.globalDay &lt; 6 &amp;&amp; global.globalHours &gt; 8 &amp;&amp; global.globalHours &lt; 18) {
 console.log('During Business Hours!');
} else {
 console.log(&quot;Outside of Business hours!&quot;);
}
</code></pre>

blocks|key|257055|text|要以PST时区启动您的节点，请在ubuntu中使用以下命令。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|257056|TZ=\"/usr/share/zoneinfo/GMT%2B0\"+&&+export+TZ+&&+npm+start+&|code-block|syntax|javascript|257057|然后，您可以引用Date+Library获取节点中的自定义计算日期和时间函数。|offset|length|257058|要使用客户端，请参考this+link，下载index.js和assertHelper.js并将其包含在您的HTML中。|257059|<script+src="assertHelper.js"></script>
<script+type="text/javascript"+src="index.js"></script>
$(+document+).ready(function()+{
++++DateLibrary.getDayOfWeek(new+Date("2015-06-15"),{operationType:"Day_of_Week"});+//+Output+:+Monday
}|257060|您可以使用示例中给出的不同函数来获取自定义日期。|style|BOLD|257061|如果一周的第一天是星期日，那么2015年6月15日是哪一天。|257062|+DateLibrary.getDayOfWeek(new+Date("2015-06-15"),
++++{operationType:"Day_Number_of_Week",
++++++++startDayOfWeek:"Sunday"})+//+Output+:+1|257063|如果一周的第一天是星期二，则一年中的第几周将在2015年6月15日作为日期之一。|257064|+DateLibrary.getWeekNumber(new+Date("2015-06-15"),
++++{operationType:"Week_of_Year",
++++++++startDayOfWeek:"Tuesday"})+//+Output+:+24|257065|参考其他函数以满足您的自定义日期要求。|257066|entityMap|0|LINK|mutability|MUTABLE|url|https://www.npmjs.com/package/date-management|1|https://github.com/digicorp/date-management^0|0|0|8|C|0|0|A|9|1|0|0|0|O|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1D|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|1E|8|@]|9|@$I|1F|J|1G|1|1H]]|A|$]]|$1|K|3|L|5|6|7|1I|8|@]|9|@$I|1J|J|1K|1|1L]]|A|$]]|$1|M|3|N|5|D|7|1M|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|1N|8|@$I|1O|J|1P|Q|R]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|1R|8|@]|9|@]|A|$E|F]]|$1|W|3|X|5|6|7|1S|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|D|7|1T|8|@]|9|@]|A|$E|F]]|$1|10|3|11|5|6|7|1U|8|@]|9|@]|A|$]]|$1|12|3|-4|5|6|7|1V|8|@]|9|@]|A|$]]]|13|$14|$5|15|16|17|A|$18|19]]|1A|$5|15|16|17|A|$18|1B]]]]

To start your node in PST time zone , use following command in ubuntu.

<pre><code>TZ=\"/usr/share/zoneinfo/GMT+0\" &amp;&amp; export TZ &amp;&amp; npm start &amp;
</code></pre>

Then You can refer <a href="https://www.npmjs.com/package/date-management" rel="nofollow noreferrer">Date Library</a> to get the custom calculation date and time functions in node.

To use it client side refer <a href="https://github.com/digicorp/date-management" rel="nofollow noreferrer">this link</a>, download index.js and assertHelper.js and include that in your HTML.

<pre><code>&lt;script src="assertHelper.js"&gt;&lt;/script&gt;
&lt;script type="text/javascript" src="index.js"&gt;&lt;/script&gt;
$( document ).ready(function() {
 DateLibrary.getDayOfWeek(new Date("2015-06-15"),{operationType:"Day_of_Week"}); // Output : Monday
}
</code></pre>

You can use different functions as given in examples to get custom dates.

If first day of week is Sunday, what day will be on 15th June 2015.

<pre><code> DateLibrary.getDayOfWeek(new Date("2015-06-15"),
 {operationType:"Day_Number_of_Week",
 startDayOfWeek:"Sunday"}) // Output : 1
</code></pre>

If first day of week is Tuesday, what week number in year will be
 follow in 15th June 2015 as one of the date.

<pre><code> DateLibrary.getWeekNumber(new Date("2015-06-15"),
 {operationType:"Week_of_Year",
 startDayOfWeek:"Tuesday"}) // Output : 24
</code></pre>

Refer other functions to fulfill your custom date requirements.

I want to get 1 to 24, 1 being 1am Pacific Time.

How can I get that number in Node.JS?

I want to know what time it is in Pacific time right now.

How do I get the time of day in javascript/Node.js?

我想要1到24，1是太平洋时间凌晨1点。如何在Node.JS中获取该数字？我想知道太平洋时间现在是几点。

问如何获取javascript/Node.js中的时间？
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回答 9

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问如何获取javascript/Node.js中的时间？
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