javascript 从日期字符串中获取时间
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Get the time from a date string
提问by vishnu
How do I get the time from the date string using JavaScript.
如何使用 JavaScript 从日期字符串中获取时间。
My datestring is in the following way: 2013-04-08T10:28:43Z
我的日期字符串如下：2013-04-08T10:28:43Z
How to split the time in hours and minutes format. I want to show the activity stream in the following way:
如何以小时和分钟格式分割时间。我想通过以下方式显示活动流：
xxx has updated 2hrs ago
yyy has updated 3min ago
xxx 2 小时前
更新 yyy 3 分钟前更新
回答by Stasel
Just create new Date object:
只需创建新的 Date 对象：
var myDate = new Date("2013-04-08T10:28:43Z");
var minutes = myDate.getMinutes();
var hours = myDate.getHours();
回答by lib3d
Extract a date from your dateString
从 dateString 中提取日期
First extract the numbers with
首先提取数字
var sp = dateString.match(/\d+/g)
Then you can build a Date object or skip this step
然后你可以构建一个Date对象或者跳过这一步
var dateObject = new Date(+sp[0], +sp[1]-1, +sp[2], +sp[3], +sp[4], +sp[5])
And call getHoursand getMinuteson this Date object.
并在此 Date 对象上调用getHoursand getMinutes。
If you skip this then directly get +sp[3]for hours and +sp[4]for minutes.
Compute the difference
如果您跳过此步骤，则直接获取+sp[3]数小时和+sp[4]数分钟。
计算差异
Since you seem to have to compare with now, you will get time difference this way:
由于您似乎必须与现在进行比较，因此您会以这种方式获得时差：
var timeDifference = new Date(new Date - dateObject);
And then call getHoursand getMinuteson timeDifference.
然后调用getHours并getMinutes继续timeDifference。
回答by mvladk
Simple Javascript is more than enough: Date.parse will convert your string to timestamp:
简单的 Javascript 就足够了：Date.parse 会将您的字符串转换为时间戳：
var date_string = '2013-04-08T10:28:43Z';
var your_date_object = new Date();
your_date_object.setTime(Date.parse( date_string ));
var min = your_date_object.getUTCMinutes();
var hour = your_date_object.getUTCHours();
回答by hbhakhra
This is whats known as an ISO string. There are utilities to parse ISO strings as regular JavaScript dates out there such as Dojo.
这就是所谓的 ISO 字符串。有一些实用程序可以将 ISO 字符串解析为常规 JavaScript 日期，例如 Dojo。
var date = dojo.date.stamp.fromISOString("2013-04-08T10:28:43Z");
http://dojotoolkit.org/reference-guide/1.8/dojo/date/stamp.html
http://dojotoolkit.org/reference-guide/1.8/dojo/date/stamp.html
回答by Bogdan Haidu
var curr_date = new Date();
var test_date = new Date("2016-01-08 10:55:43");
hours_diff=Math.abs(test_date.getHours()-curr_date.getHours());
minutes_diff=Math.abs(test_date.getHours()*60+test_date.getMinutes()-curr_date.getHours()*60-curr_date.getMinutes());
console.log("xxx has updated "+hours_diff+" hours ago");
console.log("xxx has updated "+minutes_diff+" minutes ago"); //not so beautiful
///STILL IF THE date is a string and !!NOT CREATED with DATE
/// "Get the time from a date string" might have this solution
var date = "2016-01-08 10:55:43";
var hours = date.slice(-8);
console.log("hours and minutes string is "+hours);
