[英]Moment.Js: Offsetting dates using UTC and Timezone offset
I am trying to adjust a time using a timezone offset and a UTC timestamp. 我正在尝试使用时区偏移和UTC时间戳来调整时间。
I am running the following code: 我正在运行以下代码:
var date = {
utc: '2013-10-16T21:31:51',
offset: -480
}
var returnDate = moment(date.utc).utc().zone(date.offset).format('MM/DD/YYYY h:mm A');
What I am expecting is: 10/16/2013 1:31 PM
but I am ending up with 10/17/2013 9:31 AM
我期待的是:
10/16/2013 1:31 PM
但我最终10/17/2013 9:31 AM
结束
Here is what worked for me: 这对我有用:
var date = {
utc: '2013-10-16T21:31:51',
offset: 480
}
var returnDate = moment.utc(date.utc).zone(date.offset).format('MM/DD/YYYY h:mm A');
If you noticed, I changed the offset to a positive number. 如果您注意到,我将偏移更改为正数。 This gave the desired result.
这给出了期望的结果。 If the offset was left at
-480
the output was 10/17/2013 5:31 AM
. 如果偏移量保持在
-480
则输出为10/17/2013 5:31 AM
。
There is a moment#UTC method that initializes the date as UTC vs. local time. 有一个时刻#UTC方法将日期初始化为UTC与本地时间。
I use the jsTimezoneDetect library to determine the timezone name instead of the offset. 我使用jsTimezoneDetect库来确定时区名称而不是偏移量。
Then use this on a UTC timestamp: 然后在UTC时间戳上使用它:
timestamp = moment.tz(timestamp, tz.name());
timestamp.format('MM/DD/YYYY h:mm A');
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