getting time zone name from offset in moment.tz

user_17269061 0
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I have a api which needs to store a utc+timestamp in mongodb. I am trying to save the value in mongodb which is saving in UTC time. While retreiving i am trying to send the current time using the below code

return moment.tz("2022-02-04T08:19:38Z","Asia/Seoul").format()

The above code is working fine. Now i have a use case as the input format will be

2022-02-04T08:19:38Z+09:00

I need to get the timeZone from the offset above likeif i pass +0900 i need output as "Asia/Seoul",Any idea as how can I proceed forward? Kindly help

moment-timezone node.js mongodb utc javascript
1 Answers

String 2022-02-04T08:19:38Z+09:00 is not valid. Z indicates UTC time while +09:00 indicates UTC offest, i.e. you provide a timestamp with two (different) time zones.

As it is ambiguous I cannot propose a solution. Is 2022-02-04T08:19:38 intended to be UTC or Seoul time?

This one would work:

moment("2022-02-04T08:19:38+09:00").format()

MongoDB stores date values as UTC time - always and only! If you need to preserver the input time zone, then you have to store it separately in an extra field.

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