Question

我需要将我的日期和时间转换为UTC /通用时间戳，而且我不确定如何转换它（我在美国东部时间工作）。我需要这种格式：YYYY-MM-DD HH：mm：我已经使用这段代码构建的ss：

var now = new Date();
var year = "" + now.getFullYear();
var month = "" + (now.getMonth() + 1); 

if (month.length == 1) {
    month = "0" + month; 
}
day = "" + now.getDate(); 
if (day.length == 1) { 
    day = "0" + day; 
}
hour = "" + now.getHours(); 
if (hour.length == 1) { 
    hour = "0" + hour; 
}
minute = "" + now.getMinutes();
if (minute.length == 1) { 
    minute = "0" + minute; 
}
second = "" + now.getSeconds(); 
if (second.length == 1) { 
    second = "0" + second; 
}
var timeStamp = year + "-" + month + "-" + day + " " + hour + ":" + minute + ":" + second;

返回类似＆＃34; 2017-05-19 16：23：19＆＃34;如果可能的话，我们如何将其转换为UTC？谢谢你的帮助。

Answer 1

在代码中首先创建一个javascript日期对象，这里是调用

new Date(year, month[, date[, hours[, minutes[, seconds[, milliseconds]]]]]);

然后

var isoDate = new Date('yourdatehere').toISOString();

所以对你来说就是

var date = new Date(year, month, day, hour, minute, second, 0);
var isoDate = date.toISOString();

小提琴我试图这样做。也许这就是你想要的方式

https://jsfiddle.net/pvu6ctsd/

Answer 2

这是一种方法：

var timestamp = "2017-05-19 16:23:19"; //substitute by your timestamp variable
var date = new Date(timestamp.replace(' ', 'T') + 'Z');
var strUDate = date.toISOString();
console.log(strUDate);

Answer 3

在Javascript new Date()中创建日期时，您的对象会存储创建UTC之前或之后的分钟数。您可以随时使用getTimezoneOffset()方法

查看此内容

如果您希望将UTC时间作为字符串，则只能使用一种方法。

const date = new Date();
date.toUTCString();
// Fri, 19 May 2017 21:07:27 GMT

如果您希望以首选字符串格式使用它，则必须以与您相同的方式手动构建字符串。只需用UTC方法替换你的方法。

const date = new Date();

const year = "" + date.getUTCDate();
let month = "" + (date.getUTCMonth() + 1); // we add a 1 because month is 0 based
if (month.length == 1) {
  month = "0" + month; 
}
let day = "" + date.getUTCDate(); 
if (day.length == 1) { 
  day = "0" + day; 
}
let hour = "" + date.getUTCHours(); 
if (hour.length == 1) { 
  hour = "0" + hour; 
}
let minute = "" + date.getUTCMinutes();
if (minute.length == 1) { 
  minute = "0" + minute; 
}
let second = "" + date.getUTCSeconds(); 
if (second.length == 1) { 
  second = "0" + second; 

const timeStamp = year + "-" + month + "-" + day + " " + hour + ":" +  minute + ":" + second;

如果你想要短手

const d = new Date();
const dateString = `${d.getUTCFullYear()}-${('0' + d.getUTCMonth()).slice(-2)}-${('0' + d.getUTCDate()).slice(-2)} ${('0' + d.getUTCHours()).slice(-2)}:${('0' + d.getUTCMinutes()).slice(-2)}:${('0' + d.getUTCSeconds()).slice(-2)}`;
// 2017-04-19 23:39:28

将格式化的Javascript时间/日期转换为通用时间戳

3 个答案: