Utilizing Moment.js for accurate timezone conversions

I'm having trouble converting my date to the correct time zone using moment.js. Every time I try, I end up with the entire thing without a time specification.

Here is the snippet of code from my program:

 console.log(von);
console.log(bis);

var nVon = moment.tz(von, "Europe/Berlin");
var nBis = moment.tz(bis, "Europe/Berlin");

console.log(nVon.format());
console.log(nBis.format());

When I check the console, this is what I see:

2022-10-31T00:00:00+01:00

And here is the original German format that I aim to store in MongoDb with the correct time zone:

https://i.sstatic.net/mg3pN.jpg

The issue arises when it gets saved in MongoDB with an hour loss like this, lacking UTC information: 2022-10-31T19:44:39.000+00:00

javascriptmongodbmomentjsmoment-timezone

Answer №1

MongoDB strictly stores date values as UTC times - without exception!

To retain the client's input time zone, it should be saved in a separate field. Typically, it is the responsibility of the client to convert and display MongoDB UTC times into local times.

Remember, it is advised to avoid storing date values as strings, as this can lead to design issues. Always store them as proper Date objects. For example:

moment.tz(von, "Europe/Berlin").toDate()

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