Javascript Javascript将秒转换为日期对象

Javascript convert seconds to a date object

提问by jhanifen

How can I convert seconds into a datetime object in javascript.

如何在 javascript 中将秒转换为日期时间对象。

Examples:

例子：

1.3308313703571

1.3308313703571

1.6324722385401

1.6324722385401

This is from a series of points and when they occurred. I understand 1.23323 more then seconds, but I can not change the value, being pulled from an api.

这是从一系列的观点和它们发生的时间来看的。我理解 1.23323 多于几秒，但我无法更改该值，因为它是从 api 中提取的。

回答by UVM

You can try like this:

你可以这样试试：

function toDateTime(secs) {
    var t = new Date(1970, 0, 1); // Epoch
    t.setSeconds(secs);
    return t;
}

Info on epoch date.

有关纪元日期的信息。

回答by Klesun

You can pass unix timestamp milliseconds as an argument to the Dateconstructor:

您可以将 unix 时间戳毫秒作为参数传递给Date构造函数：

var secs = 30;
new Date(secs * 1000);

Outputs:

输出：

Date 1970-01-01T00:00:30.000Z

回答by run.revelations

The question seems to have already been answered but this may be helpful for those attempting to do something similar to ruby's Time.at() method.

这个问题似乎已经得到了回答，但这可能对那些试图做类似于 ruby​​ 的 Time.at() 方法的人有所帮助。

function formatDateTime(input){
       var epoch = new Date(0);
       epoch.setSeconds(parseInt(input));
       var date = epoch.toISOString();
       date = date.replace('T', ' ');
       return date.split('.')[0].split(' ')[0] + ' ' + epoch.toLocaleTimeString().split(' ')[0];
};

回答by Harish

your example values have a decimal.. looking like you are trying to convert 1.something seconds into a date..

您的示例值有一个小数.. 看起来您正在尝试将 1.something 秒转换为日期..

Meanwhile check this example hereon the correct seconds to date conversion.. you could view their js sources.

同时在此处查看此示例以了解正确的秒数到日期转换。您可以查看他们的 js 源代码。

回答by Imagine Breaker

/**
    DateTime 
    -------
    Author:     Jamal BOUIZEM
    Date:       20/02/2015
    Version:    1.0.0
*/

var DateTime = (function(){
    return {
        instance: function(spec){
            var that = {
                h: spec.h || 0,
                m: spec.m || 0,
                s: spec.s || 0
            };

            var d = new Date();
            var str = "";

            function __init__(h, m, s)
            {
                that.h = h;
                that.m = m;
                that.s = s;

                d.setHours(that.h);
                d.setMinutes(that.m);
                d.setSeconds(that.s);
            };

            that.get = function(){ 
                d.setHours(that.h);
                d.setMinutes(that.m);
                d.setSeconds(that.s);
                return d; 
            };

            that.set = function(h, m, s){
                __init__(h, m, s);
            };

            that.convertSecs = function(){
                return (that.h * 3600) + (that.m * 60) + that.s;
            };

            that.secsToDate = function(seconds){
                var ts = seconds % 60;
                var tm = (seconds / 60) % 60;
                var th = (seconds / 3600) % 60;
                return DateTime.instance({ h: parseInt(th), m: parseInt(tm), s: parseInt(ts) });
            };

            that.add = function(d){
                return that.secsToDate(that.convertSecs() + d.convertSecs());
            };

            that.subtract = function(d){
                return that.secsToDate(that.convertSecs() - d.convertSecs());
            };

            __init__(that.h, that.m, that.s);
            return that;
        }
    }
})();