dayjs-banking-days

This is a Day.js plugin that is meant to provide efficient ways for getting US banking days.

• Inspired by moment-holiday and moment-business-days intended for common US banking holidays

Installation

Install via Bun, Yarn or NPM

bun add dayjs-banking-days

yarn add dayjs-banking-days

npm install dayjs-banking-days

Usage

By default, this plugin considers the following holidays:

• New Year's Day
• Martin Luther King Jr. Day
• Presidents' Day
• Memorial Day
• Juneteenth
• Independence Day
• Labor Day
• Veterans Day
• Thanksgiving
• Christmas

The following functionality is provided:

• isBankingDay // Boolean
• isBankingHoliday // Boolean
• addBankingDays // dayjs.Dayjs
• subtractBankingDays // dayjs.Dayjs
• nextBankingDay // dayjs.Dayjs
• previousBankingDay // dayjs.Dayjs

You will need to import the plugin and activate it via the Day.js .extend() function

import dayjs from 'dayjs'
import dayjsBankingDays from 'dayjs-banking-days'

dayjs.extend(dayjsBankingDays)

You can include custom dates by passing in an object that contains the one or both of the following properties:

• fixedDateHolidays
• floatingDateHolidays

Fixed date holidays always occur on the same date each year and are represent as a string with the format MM-DD, e.g. May 4th (Star Wars Day) would be 05-04. Floating date holidays occur on a specific day of the month, represented with an object comprised of the key being the month, an array where the first element is the day, followed by the occurence count in the month, e.g. Columbus Day is the 2nd Monday in October and would be represented { 10: [1, 2]}.

import dayjs from 'dayjs'
import dayjsBankingDays from 'dayjs-banking-days'

dayjs.extend(dayjsBankingDays, {
	fixedDateHolidays: ['05-04'],
	floatingDateHolidays: {
		10: [1, 2],
	},
})

To determine if it's a holiday

const isBankingDay: boolean = dayjs().isBankingDay()

To determine if it's a banking holiday

const isBankingHoliday: boolean = dayjs().isBankingHoliday()

To add banking days

const newDay: dayjs.Dayjs = dayjs().addBankingDays(2) // Adds 2 days

To subtract banking days

const newDay: dayjs.Dayjs = dayjs().subtractBankingDays(7) // Subtracts 7 days