date-fns-tz | Complementary library for date-fns v2 adding IANA time zone | Date Time Utils library
kandi X-RAY | date-fns-tz Summary
kandi X-RAY | date-fns-tz Summary
Working with UTC or ISO date strings is easy, and so is working with JS dates when all times are displayed in a user's local time in the browser. The difficulty comes when working with another time zone's local time, one other than the current system's, like on a Node server or when showing the time of an event in a specific time zone, like an event in LA at 8pm PST regardless of where a user resides.
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- Generate type list
- Parse a date string
- Set up config .
- Create benchmark reporter
- Parse a time string .
- Determines the date time format .
- Generates a doc for a docFn
- Generate a doc with options
- Convert dirty params to query params
- Returns a string representation of the given types .
date-fns-tz Key Features
date-fns-tz Examples and Code Snippets
Community Discussions
Trending Discussions on date-fns-tz
QUESTION
After updating Angular 12 to 13 some of my Jest tests started failing. It's always the same error:
/Users/undsoft/projects/work/webui/node_modules/date-fns/esm/format/index.js:1. ({"Object.":function(module,exports,require,__dirname,__filename,jest){import isValid from "../isValid/index.js";
SyntaxError: Cannot use import statement outside a moduleat Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1728:14)
at Object. (node_modules/date-fns-tz/format/index.js:8:38)
My versions are:
"date-fns": "~2.28.0",
"date-fns-tz": "~1.2.2",
"jest": "~27.4.5",
"jest-preset-angular": "~11.0.1",
Jest config is:
...ANSWER
Answered 2022-Jan-06 at 15:09Does adding
transformIgnorePatterns: ['/node_modules/(?!.*\\.mjs$)'],
work for you?
QUESTION
Okay so I am deving a new React site and and playing around with some time stuff and realised that when using the dev tools and running a
new Date()
I get back
Fri Dec 03 2021 03:55:44 GMT+0000 (Greenwich Mean Time)
However since I am in the Australian Timezone I expect that this should come back as
Fri Dec 03 2021 14:55:44 GMT+1100 (Australian Eastern Daylight Time)
So my first thought was that my system timezone was out of whack, however when I tried the same on any other website, (open dev tools and run new Date()) I get the correct time zoned Date.
My guess of what is going on is that the Date() primitive is being overwritten somewhere but I'm unsure of how to check what is overriding it. I am using the date-fns package but that's in terms of date libraries. Below is my package.json
ANSWER
Answered 2021-Dec-06 at 01:13I found the issue, it was actually because I had a chrome extension installed that would overwrite the Time zone for this specific site on localhost for some reason. The way that it works, was by overriding the Date class. I fixed the issue, by uninstalling/disabling the extension.
Thanks for your help everyone!
QUESTION
I know there is date-fns-tz and luxon, but I can't figure out how to do it using CDN only. So the task is the following:
there is a string as an input (can be different):
2021-11-26 21:47 and it should return a Date object with the 2021-11-26 21:47 Europe/Moscow (or the corresponding time in UTC, that doesn't matter.
All my attempts to use luxon for that failed. Will be glad to hear any advice
...ANSWER
Answered 2021-Nov-26 at 19:49Attach the timezone and create a date object (might be unreliable based on the implementation in the runtime environment)
QUESTION
I'm trying to create a date object from the string 01:03:55.065 GMT Tue Mar 16 2021 in NodeJS javascript with date-fns v2.21.3 but I wouldn't mind using regular javascript Date instead.
this is my code:
...ANSWER
Answered 2021-May-24 at 06:54Maybe this plain JavaScript solution will be helpful to you?
QUESTION
Hey I am receiving dates from a database which saves these dates as UTC. When I print one of the dates with console.log it looks like this 2021-04-07T07:00:00.000Z.
Now I want to convert it into Europe/Berlin time. But not as a String, I want it as Javascript Date.
What i tried to do
I installed date-fns and date-fns-tz and I tried to use multiple functions from these packages but nothing seems to work properly or returns the correct date but again as with 'Z' suffix.
Example where testDate is the Date mentioned before
...ANSWER
Answered 2021-Apr-07 at 17:41Now I want to convert it into Europe/Berlin time. But not as a String, I want it as Javascript Date.
That is not possible. The JavaScript Date object does not contain any time zone information whatsoever. The only thing it contains is a Unix timestamp with milliseconds precision. In other words, the Date object encapsulates the number of milliseconds since 1970-01-01 00:00:00.000 UTC (not counting leap seconds). You can see this value directly with .getTime(), .valueOf(), or by any mechanism that converts the Date object to a Number.
When one observes a Date object and sees a time zone or a value in a particular time zone, that behavior is occurring at runtime in the function itself. For example, the toString function of the Date object uses the local time zone of the computer when it converts the internal UTC-based timestamp to the computer's local time before returning a string that has formatted that result.
Most functions on the Date object work in either UTC or in the computer's local time zone (as described). The only ones that work with other time zones are the toLocaleString, toLocaleDateString, and toLocaleTimeString functions, which will accept an IANA time zone identifier in the timeZone option. Like the toString function, they only use this time zone when generating a string. They do not retain it.
In short, the Date object does not contain a time zone, so what you ask for is not possible.
A couple of other things:
Don't call
console.logdirectly on aDateobject. That behavior is undefined. Some implementations return the value oftoStringwhile others return the value oftoISOString.Don't ever try to add/subtract an offset on a date/time unless you really know what you are doing. In most cases, you aren't adjusting for time zone but are actually choosing a different point in time.
Yes,
Zat the end of an ISO 8601 timestamp means that the date and time presented are in terms of UTC.
QUESTION
I’m trying to work with date-fns-tz in my react-based webpage and couldn’t make the following use-case to work.
I have a date input in a form that should be submitted to the backend that stores the data in local timezone.
A user in GMT+2 timezone selects 14:00 on 1/Feb/2021 in the UI, which correlates to 1612180800 timestamp (as the UI was opened in GMT+2), but it should eventually get sent to the backend as 14:00 in GMT-8, which is actually 1612216800 timestamp.
What’s the right way to get this conversion (from 1612180800 --> 1612216800 ) to work?
I tried to work with various date-fns functions, but hadn’t found the right one.
...ANSWER
Answered 2021-Feb-03 at 15:45You can use 'moment' to convert timezone.
1.Create a moment with your date time, specifying that this is expressed as utc, with moment.utc()
2.convert it to your timezone with moment.tz()
For example
QUESTION
Users are able to submit only the date part of a date stamp e.g. 2020-12-01, assuming that the time will be 00:00:00
So, if I have the above value, I want to update the time to its UTC value. So if I am in the EST timezone, I want to convert 2020-12-01 to 2020-12-01 05:00:00 to account for the five hour offset.
Can I do this with date-fns-tz?
ANSWER
Answered 2020-Nov-17 at 03:53Given:
QUESTION
I'm getting an error when running npm test. I feel like I have tried every existing suggestion online, but I can not get it to work.
Here is my package.json. I thought the "transformIgnorePatterns": [ "/node_modules/(?!@total/*)", ], would solve the issue, but it didn't.
ANSWER
Answered 2020-Nov-13 at 16:08Looks like your situation is to be nested twice node_modules (node_modules/@opt-ui/icons/node_modules/@equinor/eds-icons), so you might have to set both @opt-ui and @equinor to re-transpile.
However, I have an idea which I'm not 100% the following way would work but it's worth trying though:
QUESTION
Earlier I asked about the concepts of storing birth dates and notifying users, after looking at some libraries I decided to go for date-fns and date-fns-tz, I figured I can store dates like this:
...ANSWER
Answered 2020-Aug-03 at 22:04We can make the PostgreSQL query like this
QUESTION
I am trying the ECMA-402 International API to get the timezone abbreviation in a timezone that is not the local timezone (server timezone is UTC). I know other ways to get this. I am trying to understand the limitations of and make best use of the International API. I can get the full timezone name and map it myself, but as the abbreviations are in the IANA tz database and the International API is supposed to be based on this, it seems it should be able to produce them, which makes me think I am doing something wrong.
I have the following code:
...ANSWER
Answered 2020-Apr-08 at 20:19Most implementations of the ECMAScript Internationalization API derive time zone abbreviation strings from Unicode CLDR, not from IANA. Abbreviations in IANA are English-only, and many have been removed in recent years, where it was found they had been invented.
Unfortunately, there are very few time zone abbreviations actually included in the CLDR data set.
In general, time zone abbreviations are difficult to get agreement on. In several cases, more than one abbreviation is used for the same time zone. Some cultures switch to English abbreviations, while others have their own in their own languages, and many cultures simply don't use them at all.
Given all this, I'd say you should still use the output given by the Intl API. Where abbreviations are available you'll have them, and where they aren't you'll have a numeric offset. Yes - that's the current state of the art.
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