如果您更喜欢解析时间戳和日期从UTC和本地时间到UTC和本地时间的转换，而不需要像moment.js这样的库，请查看下面的选项。

对于使用UTC时间戳的应用程序，您可能需要在浏览器中显示日期，考虑到当地时区和夏令时(如果适用)。编辑不同夏令时的日期(即使是在同一时区)可能会很棘手。

下面的Number和Date扩展允许您在时间戳的时区中显示和获取日期。例如，假设你在温哥华，如果你在7月或12月编辑一个日期，这可能意味着你在PST或PDT编辑一个日期。

我建议您检查下面的代码片段来测试这个解决方案。

毫秒换算

Number.prototype.toLocalDate = function () {
    var value = new Date(this);

    value.setHours(value.getHours() + (value.getTimezoneOffset() / 60));

    return value;
};

Number.prototype.toUTCDate = function () {
    var value = new Date(this);

    value.setHours(value.getHours() - (value.getTimezoneOffset() / 60));

    return value;
};

日期转换

Date.prototype.getUTCTime = function () {
    return this.getTime() - (this.getTimezoneOffset() * 60000);
};

使用

// Adds the timezone and daylight savings if applicable
(1499670000000).toLocalDate();

// Eliminates the timezone and daylight savings if applicable
new Date(2017, 6, 10).getUTCTime();

你自己看吧

// Extending Number Number.prototype.toLocalDate = function () { var value = new Date(this); value.setHours(value.getHours() + (value.getTimezoneOffset() / 60)); return value; }; Number.prototype.toUTCDate = function () { var value = new Date(this); value.setHours(value.getHours() - (value.getTimezoneOffset() / 60)); return value; }; // Extending Date Date.prototype.getUTCTime = function () { return this.getTime() - (this.getTimezoneOffset() * 60000); }; // Getting the demo to work document.getElementById('m-to-local-button').addEventListener('click', function () { var displayElement = document.getElementById('m-to-local-display'), value = document.getElementById('m-to-local').value, milliseconds = parseInt(value); if (typeof milliseconds === 'number') displayElement.innerText = (milliseconds).toLocalDate().toISOString(); else displayElement.innerText = 'Set a value'; }, false); document.getElementById('m-to-utc-button').addEventListener('click', function () { var displayElement = document.getElementById('m-to-utc-display'), value = document.getElementById('m-to-utc').value, milliseconds = parseInt(value); if (typeof milliseconds === 'number') displayElement.innerText = (milliseconds).toUTCDate().toISOString(); else displayElement.innerText = 'Set a value'; }, false); document.getElementById('date-to-utc-button').addEventListener('click', function () { var displayElement = document.getElementById('date-to-utc-display'), yearValue = document.getElementById('date-to-utc-year').value || '1970', monthValue = document.getElementById('date-to-utc-month').value || '0', dayValue = document.getElementById('date-to-utc-day').value || '1', hourValue = document.getElementById('date-to-utc-hour').value || '0', minuteValue = document.getElementById('date-to-utc-minute').value || '0', secondValue = document.getElementById('date-to-utc-second').value || '0', year = parseInt(yearValue), month = parseInt(monthValue), day = parseInt(dayValue), hour = parseInt(hourValue), minute = parseInt(minuteValue), second = parseInt(secondValue); displayElement.innerText = new Date(year, month, day, hour, minute, second).getUTCTime(); }, false); <link href="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.11/semantic.css" rel="stylesheet"/> <div class="ui container"> <p></p> <h3>Milliseconds to local date</h3> <input id="m-to-local" placeholder="Timestamp" value="0" /> <button id="m-to-local-button">Convert</button> <em id="m-to-local-display">Set a value</em> <h3>Milliseconds to UTC date</h3> <input id="m-to-utc" placeholder="Timestamp" value="0" /> <button id="m-to-utc-button">Convert</button> <em id="m-to-utc-display">Set a value</em> <h3>Date to milliseconds in UTC</h3> <input id="date-to-utc-year" placeholder="Year" style="width: 4em;" /> <input id="date-to-utc-month" placeholder="Month" style="width: 4em;" /> <input id="date-to-utc-day" placeholder="Day" style="width: 4em;" /> <input id="date-to-utc-hour" placeholder="Hour" style="width: 4em;" /> <input id="date-to-utc-minute" placeholder="Minute" style="width: 4em;" /> <input id="date-to-utc-second" placeholder="Second" style="width: 4em;" /> <button id="date-to-utc-button">Convert</button> <em id="date-to-utc-display">Set the values</em> </div>

考虑到您有epoch_time可用，

// 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

 function ToLocalDate (inDate) {
    var date = new Date();
    date.setTime(inDate.valueOf() - 60000 * inDate.getTimezoneOffset());
    return date;
}

EDIT

var utcDate = new Date(incomingUTCepoch);
var date = new Date();
date.setUTCDate(utcDate.getDate());
date.setUTCHours(utcDate.getHours());
date.setUTCMonth(utcDate.getMonth());
date.setUTCMinutes(utcDate.getMinutes());
date.setUTCSeconds(utcDate.getSeconds());
date.setUTCMilliseconds(utcDate.getMilliseconds());

编辑固定

纪元时间是从1970年1月1日开始的，单位为秒。date.getTime()返回1970年1月1日的毫秒数，因此..如果你有一个epoch时间戳，通过乘以1000将其转换为javascript时间戳。

   function epochToJsDate(ts){
        // ts = epoch timestamp
        // returns date obj
        return new Date(ts*1000);
   }

   function jsDateToEpoch(d){
        // d = javascript date obj
        // returns epoch timestamp
        return (d.getTime()-d.getMilliseconds())/1000;
   }

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:

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);