Node.js错误地确定了夏令时 [英] Daylight Savings Time wrongly identified by Node.js

问题描述

我在时区，DST和Node.js方面遇到问题。它不能正确识别DST效果。我的操作系统是Windows 8.1，并已正确设置了时区值和DST。我尝试了这两种方法：

I'm having an issue with timezones, DST and Node.js. It doesn't identify correctly DST effects. My OS is Windows 8.1 and have the timezone value and DST well set. I tried these two methods:

1）节点的日期对象

我键入了节点提示中的以下代码并收到斜体字的答案：

I typed the following code in Node Prompt and received the answer in italic:

new Date()

2014年9月9日星期二18:42:36 GMT-0200（Horáriobrasileiro deverão（巴西夏令时））

但是，巴西DST将于10月19日开始，我们现在不在DST中。因此，小时将从现在开始偏移1小时。

However, the brazilian DST starts just in Oct 19th, we are not in DST right now. Therefore, the hour is shifted 1 hour from now.

2）节点时间

我从npm获得了节点时间包，以便能够更改时区。在代码中：

I got node-time package from npm, to be able to change Timezone. In the code:

time = require('time');
dateFormat = require('dateformat');

now = time.Date();
console.log(dateFormat(now.setTimezone('America/Sao_Paulo').getTime(), "yyyy-mm-dd HH:MM:ss Z"))

结果是

2014-09-09 18 ：42：36 GMT-0200

巴西正常时区为GMT-0300。小时也是1小时的班次。

Brazilian normal timezone is GMT-0300. Hour is also 1 hour shifted.

我做错了吗？有解决方法吗？

推荐答案

节点时间包在Windows上不起作用。我什至无法安装它，所以我不确定你是怎么做到的。您应该卸载它。

The node-time package does not work on Windows. I couldn't even get it installed, so I'm not sure how you did. You should uninstall it.

如果需要在Node（或浏览器）中支持非本地时区，我建议 moment-timezone 的momentjs.com/ rel = nofollow noreferrer> moment.js >插件。

If you need support for non-local time zones in Node (or in the browser), I recommend moment.js with the moment-timezone plugin.

在设置了巴西时区的Windows上运行 new Date（），我得到正确的输出。

Running new Date() on Windows with the time zone set for Brazil, I get the correct output.

唯一的东西这将解释您的结果是：是否修改了时区注册表设置-但是您还会在任务栏上的系统时钟中看到错误的时间。因此，很抱歉，但是我无法复制其中的一部分。

The only thing that would explain your results is if the time zone registry settings were modified - but then you'd also see the wrong time in your system clock on your taskbar. So I'm sorry, but I cannot reproduce that part of it.

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