moment-timezones.js，如何将特殊时区中的日期转换为utc，而不考虑我的本地时区？

问题描述：

我的系统使用时区UTC + 03：00

my system uses timezone UTC+03:00 ,

im尝试获取字符串格式的日期，以NY时区
表示并进行转换到utc中的Date对象

im trying to get a date in string format, represented by NY timezone, and convert it to a Date object in utc

const dateInNY = moment.tz(xlsxDate, "M/D/YYYY h:mm a",  "America/New_York")
  .tz("Z").toDate();

不能正常工作

我如何甚至假设要转换为UTC时间？

how am i even suppose to convert to utc time?

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我使用时区 Africa / Accra使它正常工作，其中UTC偏移为0，而没有夏令时：

i got it to work, using the timezone "Africa/Accra" , where UTC offset is 0, and ther is no daylight savings time:

moment.tz(xlsxDate, "M/D/YYYY h:mm a",  "America/New_York").tz("Africa/Accra")

但这是一个不好的解决方法，并且如果阿克拉政府决定更改时间法，将停止工作！

but this solution is a bad workaround, and if the government of Accra decide to change the time laws, will stop working!

有没有办法将utc时区的utc偏移设置为0？

is there a way to set the utc offset to 0 in momentjs-timezones?

答

我发现了一个可以完成我想做的功能，它属于momentjs库本身： utcOffset （n）将偏移量设置为n。

i found a function that does what i was trying to do, it belongs to the momentjs library itself: utcOffset(n) sets the offset to n.

（感谢VincenzoC，我还必须正确地正确写出日期字符串格式）

(i also had to explicitly write the date string format correctly, thanks VincenzoC)

这是我正在尝试的代码写道：

this is the code i was trying to write:

const dateInNY = moment.tz(xlsxDate, "M/D/YYYY h:mm a",  "America/New_York");
const dateUTC = dateInNY.utcOffset(0).toDate();

但是，toDate函数仍然将时区更改为我的本地时区，因此 .utcOffset（0）是多余的，我可以这样使用一下时刻：

however, the toDate function changes the timezone to my local timezone anyway, so .utcOffset(0) is redundat, and i can just use moment this way:

const dateInNY = moment.tz(xlsxDate, "M/D/YYYY h:mm a",  "America/New_York");
const dateUTC = dateInNY.toDate();

，然后将Date对象的日期更改为utc时间（在我的情况下，是JSON.stringify的东西，以后再使用对我有用）

and change the Date objects date to utc time later (in my case, the JSON.stringify stuff i use later does that for me)