localized-dst
v1.1.2
Published
Determine if a date is in daylight savings time by country/state/city
Downloads
89
Maintainers
Readme
localized DST
Determine if a date is in daylight savings time by country/state/city
Motivation
I wasn't able to find a correct library to do the simple task is my date during DST (Daylight Savings Time
. Every library was old or unconstistant because I learnt the hard way but not every Country/State/City have the same DST...
This is based on the information of https://www.timeanddate.com/time/dst/
Installation
npm install localized-dst
or
yarn add localized-dst
How to use it
import { isDst } from 'localized-dst';
// DST info for Canada, Québec, Montréal
console.log(
isDst(new Date('2019-08-14 21:00:00'), {
location: 'CAN.QUEBEC.MONTREAL'
})
);
// return true
// DST info for France (Paris)
console.log(
isDst(new Date('2019-11-28 21:00:00'), {
location: 'FRA'
})
);
// return false
Implemented DST data
| Country | State | City | Key | Years |
| --------- | --------- | --------- | -------------------------- | --------- |
| Australia | Victoria | Melbourne | AUS.VICTORIA.MELBOURNE
| 2000-2030 |
| Canada | Quebec | Montreal | CAN.QUEBEC.MONTREAL
| 1980-2030 |
| | Ontario | Toronto | CAN.ONTARIO.TORONTO
| 2000-2030 |
| France | Metropole | Paris | FRA.METROPOLE.PARIS
| 2000-2030 |
| USA | HAWAI | | USA.HAWAI
| all |
How to participate
If you think something is missing or corrupted, please submit a PR to this repo!
Some tools
- You have created your file and want to modify this README, use this tool (https://www.tablesgenerator.com/markdown_tables) to generate/modify the table.