Install

npm i @mariefay/dst

import { getDSTSundays } from "@mariefay/dst"

Usage

getDSTSundays

Daylight savings time starts on the last sunday of March and ends on the last sunday of October.

getDSTSundays returns the dates of those sundays.

The function takes an optional number parameter which represents the year that you would like the DST start and end dates for. If no date is passed in, it will take the current year. The function returns an array containing 2 elements : date of the first and last sundays of the daylight savings time, as strings

import { getDSTSundays } from "@mariefay/dst"

getDSTSundays(2020) // ["2020-03-29", "2020-10-25"]

isITDST

isItDST takes a date as an optional parameter and outputs a boolean that states weather the date provided is within the daylight savings time.

The date is optional and can be passed a a string or a Date object.

import { isItDST } from "@mariefay/dst"

isItDST("2020-09-24T17:25:08+00:00") // true

Run tests

npm t

🤝 Contributing

Contributions, issues and feature requests are welcome!

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