在反映你的时区时，你可以使用这个

新日期() 新日期( 时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制 ); var curr_time = dateString.toISOString()。代表(“T”，“”)。substr (0, 19); 游戏机。log (curr_time);

在反映你的时区时，你可以使用这个

新日期() 新日期( 时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制。时间限制 ); var curr_time = dateString.toISOString()。代表(“T”，“”)。substr (0, 19); 游戏机。log (curr_time);

我认为这实际上回答了你的问题。 在javascript中处理日期/时间是很烦人的。 在我长了几根白头发之后，我发现这其实很简单。

var date = new Date();
var year = date.getUTCFullYear();
var month = date.getUTCMonth();
var day = date.getUTCDate();
var hours = date.getUTCHours();
var min = date.getUTCMinutes();
var sec = date.getUTCSeconds();

var ampm = hours >= 12 ? 'pm' : 'am';
hours = ((hours + 11) % 12 + 1);//for 12 hour format

var str = month + "/" + day + "/" + year + " " + hours + ":" + min + ":" + sec + " " + ampm;
var now_utc =  Date.UTC(str);

这里有一把小提琴

这是我写的一个轻量级的简单日期格式库，可以在node.js和浏览器上运行

安装

使用NPM安装

npm install @riversun/simple-date-format

or

直接加载(浏览器)，

<script src="https://cdn.jsdelivr.net/npm/@riversun/simple-date-format/lib/simple-date-format.js"></script>

加载库

ES6

import SimpleDateFormat from "@riversun/simple-date-format";

CommonJS node.js)

const SimpleDateFormat = require('@riversun/simple-date-format');

Usage1

const date = new Date('2018/07/17 12:08:56');
const sdf = new SimpleDateFormat();
console.log(sdf.formatWith("yyyy-MM-dd'T'HH:mm:ssXXX", date));//to be "2018-07-17T12:08:56+09:00"

用钢笔跑

Usage2

const date = new Date('2018/07/17 12:08:56');
const sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");
console.log(sdf.format(date));//to be "2018-07-17T12:08:56+09:00"

格式化模式

https://github.com/riversun/simple-date-format#pattern-of-the-date

UPDATE 2021-10-06: Added Day.js and remove spurious edit by @ashleedawg UPDATE 2021-04-07: Luxon added by @Tampa. UPDATE 2021-02-28: It should now be noted that Moment.js is no longer being actively developed. It won't disappear in a hurry because it is embedded in so many other things. The website has some recommendations for alternatives and an explanation of why. UPDATE 2017-03-29: Added date-fns, some notes on Moment and Datejs UPDATE 2016-09-14: Added SugarJS which seems to have some excellent date/time functions.

好吧，既然还没有人给出真正的答案，那我的答案就是。

库当然是以标准方式处理日期和时间的最佳选择。在日期/时间计算中有许多边缘情况，因此能够将开发移交给库是非常有用的。

以下是主要Node兼容的时间格式化库列表:

Day.js [added 2021-10-06] "Fast 2kB alternative to Moment.js with the same modern API" Luxon [added 2017-03-29, thanks to Tampa] "A powerful, modern, and friendly wrapper for JavaScript dates and times." - MomentJS rebuilt from the ground up with immutable types, chaining and much more. Moment.js [thanks to Mustafa] "A lightweight (4.3k) javascript date library for parsing, manipulating, and formatting dates" - Includes internationalization, calculations and relative date formats - Update 2017-03-29: Not quite so light-weight any more but still the most comprehensive solution, especially if you need timezone support. - Update 2021-02-28: No longer in active development. date-fns [added 2017-03-29, thanks to Fractalf] Small, fast, works with standard JS date objects. Great alternative to Moment if you don't need timezone support. SugarJS - A general helper library adding much needed features to JavaScripts built-in object types. Includes some excellent looking date/time capabilities. strftime - Just what it says, nice and simple dateutil - This is the one I used to use before MomentJS node-formatdate TimeTraveller - "Time Traveller provides a set of utility methods to deal with dates. From adding and subtracting, to formatting. Time Traveller only extends date objects that it creates, without polluting the global namespace." Tempus [thanks to Dan D] - UPDATE: this can also be used with Node and deployed with npm, see the docs

还有一些非node库:

Datejs[感谢Peter Olson] -没有打包在npm或GitHub中，所以不太容易与Node一起使用-不太推荐，因为自2007年以来没有更新!

易于阅读和自定义的方式，以获得所需格式的时间戳，无需使用任何库:

function timestamp(){
  function pad(n) {return n<10 ? "0"+n : n}
  d=new Date()
  dash="-"
  colon=":"
  return d.getFullYear()+dash+
  pad(d.getMonth()+1)+dash+
  pad(d.getDate())+" "+
  pad(d.getHours())+colon+
  pad(d.getMinutes())+colon+
  pad(d.getSeconds())
}

(如果您需要UTC格式的时间，那么只需更改函数调用。例如"getMonth"变成"getUTCMonth")