javascript .toISOString() 函数的问题
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/16084313/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Issue with .toISOString() function
提问by Amol M Kulkarni
Consider the following code HTML + JavaScript:
考虑以下代码 HTML + JavaScript：
<!DOCTYPE html>
<html>
<body>
<p id="demo">Click the button to display a date after changing the hours, minutes, and seconds.</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction()
{
var d = new Date();
d.setHours(0,0,0,0);
document.write(d + '<br/>');
document.write('ISO Date '+ d.toISOString() + '<br/>');
//I want it to be 2013-04-17T00:00:00.000Z
}
</script>
</body>
</html>
Output:
输出：
Thu Apr 18 2013 00:00:00 GMT+0530 (India Standard Time)
ISO Date 2013-04-17T18:30:00.000Z
Could anyone help on understanding this difference in Date & Time
任何人都可以帮助理解日期和时间的这种差异
回答by Artyom Neustroev
var d = new Date();
d.setHours(-12, d.getTimezoneOffset(), 0, 0); //removing the timezone offset and 12 hours
console.log(d.toISOString()); //2013-04-17T00:00:00.000Z
I don't know, why would you need a ISO date a day earlier, but in case it is a typo:
我不知道，为什么你需要提前一天的 ISO 日期，但如果它是一个错字：
var d = new Date();
d.setHours(0, -d.getTimezoneOffset(), 0, 0); //removing the timezone offset.
console.log(d.toISOString()); //2013-04-18T00:00:00.000Z
回答by John Kugelman
2013-18-04 00:00:00 GMT+0530
2013-17-04 18:30:00 GMT+0000
These are the two timestamps. The first one has a time zone, the second one is GMT (no time zone adjustment). If you take the second timestamp and add 05:30:00to 18:30:00you get midnight of the following day. That matches the first timestamp.
这是两个时间戳。第一个有时区，第二个是 GMT（无时区调整）。如果您使用第二个时间戳并添加05:30:00到18:30:00您将获得第二天的午夜。这匹配第一个时间戳。
回答by Taras Shevchenko
Also you can remove timezone like this:
您也可以像这样删除时区：
let birthday = new Date(this.profile.birthday + ' UTC').toISOString();
