Research
Security News
Malicious npm Package Targets Solana Developers and Hijacks Funds
A malicious npm package targets Solana developers, rerouting funds in 2% of transactions to a hardcoded address.
@js-joda/timezone
Advanced tools
@js-joda/timezone is an npm package that extends the js-joda library to handle time zones. It provides functionality for working with dates and times in different time zones, making it easier to perform operations like converting between time zones, getting the current time in a specific time zone, and more.
Convert between time zones
This feature allows you to convert a date and time from one time zone to another. The code sample demonstrates converting the current time in 'America/New_York' to 'Europe/London'.
const { ZonedDateTime, ZoneId } = require('@js-joda/core');
const { ZoneRulesProvider } = require('@js-joda/timezone');
const zonedDateTime = ZonedDateTime.now(ZoneId.of('America/New_York'));
const convertedDateTime = zonedDateTime.withZoneSameInstant(ZoneId.of('Europe/London'));
console.log(convertedDateTime.toString());
Get current time in a specific time zone
This feature allows you to get the current time in a specific time zone. The code sample demonstrates getting the current time in 'Asia/Tokyo'.
const { ZonedDateTime, ZoneId } = require('@js-joda/core');
const { ZoneRulesProvider } = require('@js-joda/timezone');
const currentTimeInTokyo = ZonedDateTime.now(ZoneId.of('Asia/Tokyo'));
console.log(currentTimeInTokyo.toString());
List available time zones
This feature allows you to list all available time zones. The code sample demonstrates how to retrieve and print all available time zone IDs.
const { ZoneId } = require('@js-joda/core');
const { ZoneRulesProvider } = require('@js-joda/timezone');
const availableZoneIds = ZoneRulesProvider.getAvailableZoneIds();
console.log(availableZoneIds);
moment-timezone is an extension for moment.js that adds support for time zones. It allows you to parse, manipulate, and display dates and times in different time zones. Compared to @js-joda/timezone, moment-timezone is built on top of the moment.js library, which is more widely used but also larger in size and less modern in its API design.
Luxon is a modern JavaScript library for working with dates and times, created by one of the Moment.js developers. It includes built-in support for time zones and offers a more modern and immutable API compared to moment-timezone. Luxon is similar to @js-joda/timezone in its approach to immutability and modern API design.
date-fns-tz is a time zone extension for the date-fns library. It provides functions for working with dates and times in different time zones, similar to @js-joda/timezone. date-fns-tz is known for its modular approach, allowing you to include only the functions you need, which can result in smaller bundle sizes.
Implementation of the js-joda ZoneRulesProvider, providing the bindings to the iana tzdb, using latest zone file generated by moment-timezone
Install joda using npm
npm install @js-joda
npm install @js-joda/timezone
var jsJoda = require('@js-joda/core')
require('@js-joda/timezone')
var { LocalDateTime, ZoneId, ZonedDateTime } = jsJoda;
LocalDateTime
.parse('2016-06-30T11:30')
.atZone(ZoneId.of('Europe/Berlin'))
.toString() // 2016-06-30T11:30+02:00[Europe/Berlin]
ZonedDateTime
.parse('2016-06-30T11:30+02:00[Europe/Berlin]')
.withZoneSameInstant(ZoneId.of('America/New_York'))
.toString() // 2016-06-30T05:30-04:00[America/New_York]
ZonedDateTime
.parse('2016-06-30T11:30+02:00[Europe/Berlin]')
.withZoneSameLocal(ZoneId.of('America/New_York'))
.toString() // 2016-06-30T11:30-04:00[America/New_York]
import { ZonedDateTime, ZoneId } from '@js-joda/core'
import '@js-joda/timezone'
const zdt = ZonedDateTime.now(ZoneId.of('America/New_York'))
<script src="./packages/core/dist/js-joda.js"></script>
<script src="./packages/timezone/dist/js-joda-timezone.js"></script>
<script>
// copy all js-joda classes to the global scope
for(let key in JSJoda) { this[key] = JSJoda[key]; }
LocalDateTime
.parse('2016-06-30T11:30')
.atZone(ZoneId.of('Europe/Berlin'))
.toString() // 2016-06-30T11:30+02:00[Europe/Berlin]
ZonedDateTime
.parse('2016-06-30T11:30+02:00[Europe/Berlin]')
.withZoneSameInstant(ZoneId.of('America/New_York'))
.toString() // 2016-06-30T05:30-04:00[America/New_York]
ZonedDateTime
.parse('2016-06-30T11:30+02:00[Europe/Berlin]')
.withZoneSameLocal(ZoneId.of('America/New_York'))
.toString() // 2016-06-30T11:30-04:00[America/New_York]
</script>
If you don't need all the historical data that @js-joda/timezone provides, you can instead use one of the reduced files ize builds:
js-joda-timezone-10-year-range.js
covers +- five years from the current version's releasejs-joda-timezone-1970-2030.js
covers from 1970 to 2030js-joda-timezone-2012-2022.js
covers from 2012 to 2022 // deprecated, will be removed in future releasesjs-joda-timezone-2017-2027.js
covers from 2017 to 2027To use one of these, just change your import path to the following format:
import '@js-joda/timezone/dist/js-joda-timezone-1970-2030'
@js-joda/timezone is released under the BSD 3-clause license:
The author of joda time and the lead architect of the JSR-310 is Stephen Colebourne.
The json versions of the iana tzdb are imported from and generated with moment-timezone.
FAQs
iana tzdb timezone bindings for js-joda
The npm package @js-joda/timezone receives a total of 125,349 weekly downloads. As such, @js-joda/timezone popularity was classified as popular.
We found that @js-joda/timezone demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Research
Security News
A malicious npm package targets Solana developers, rerouting funds in 2% of transactions to a hardcoded address.
Security News
Research
Socket researchers have discovered malicious npm packages targeting crypto developers, stealing credentials and wallet data using spyware delivered through typosquats of popular cryptographic libraries.
Security News
Socket's package search now displays weekly downloads for npm packages, helping developers quickly assess popularity and make more informed decisions.