[英]how do i use javascript change timezone of date without changing the time
I have users who's local timezone can be different from a facility they are setting up event start times for. 我的用户所在的本地时区可能不同于为其设置事件开始时间的设施。 I want to take the time (say 10 am) and change the javascript date object to be 10am in the facility timezone and not the local timezones.
我想花点时间(例如上午10点),并将javascript日期对象更改为设施时区而非本地时区的上午10点。 I do know the utc offset of both local and desired timezone.
我确实知道本地和所需时区的utc偏移量。 I have not been able to link it all together.
我无法将所有内容链接在一起。 Here is my example.
这是我的例子。
var localOffset = 420;
var desiredOffset = 360;
var eventStartDate = moment(localStartDate);
eventStartDate.subtract(localOffset - desiredOffset);
my original time is in MDT and my desired is CDT but the start time of 10am needs to remain the same. 我原来的时间是MDT,而我希望的是CDT,但是上午10点的开始时间必须保持不变。 If I can do this without using momentjs that is fine.
如果我可以不使用momentjs就可以做到这一点。
Take a look at the documentation for the subtract
method: 请看一下
subtract
方法的文档:
http://momentjs.com/docs/#/manipulating/subtract/ http://momentjs.com/docs/#/manipulating/subtract/
You're missing a unit in your call. 您在通话中错过了一个部门。 It appears that you're using minutes, so your call should be something like:
看来您正在使用分钟,所以您的通话应类似于:
eventStartDate.subtract(localOffset - desiredOffset, 'minutes');
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