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dayjs-business-time

A Day.js plugin that allows you to work with Business Time.

  • Business Days
  • Business Hours
  • Business Minutes
  • Customize business days and hours
  • Customize Holidays to prevent them to be counted as Business Days

Getting Started

Table of Contents

Instalation

With NPM

npm i dayjs-business-time

With Yarn

yarn add dayjs-business-time

Usage

NodeJS

// First of all, include dayjs
const dayjs = require('dayjs');

// Then, include dayjs-business-time
const dayjsBusinessTime = require('dayjs-business-time');

// Attach dayjs plugin
dayjs.extend(dayjsBusinessTime);

// Now you have all Business Time methods in dayjs

Typescript

// First of all, include dayjs
import dayjs from 'dayjs';

// Then, include dayjs-business-time
import dayjsBusinessTime from 'dayjs-business-time';

// Attach dayjs plugin
dayjs.extend(dayjsBusinessTime);

// Now you have all Business Time methods in dayjs

Setup

Setting Holidays

By default, holidays are empty!

// Create your holidays array as string array
const holidays: string[] = [
    '2021-01-01',
    '2021-01-25',
    '2021-06-03',
];

// Add holidays to dayjs
dayjs.setHolidays(holidays);

Getting Holidays

const holidays: string[] = dayjs.setHolidays(holidays);

console.log(holidays);
// Output: ['2021-01-01', '2021-01-25', '2021-06-03']

Setting Business Times

By default, Business Times are Monday-Friday, 9am - 5pm, but you can setup as many Business Segments you want in a day

// Create your Business Week definition
const businessTimes: BusinessHoursMap = {
  sunday: null,
  monday: [
    { start: '09:00:00', end: '17:00:00' }
  ],
  tuesday: [
    { start: '09:00:00', end: '12:00:00' },
    { start: '13:00:00', end: '18:00:00' }
  ],
  wednesday: [
    { start: '09:00:00', end: '12:00:00' },
    { start: '13:00:00', end: '16:00:00' },
    { start: '13:00:00', end: '17:00:00' }
  ],
  thursday: [
    { start: '09:00:00', end: '17:00:00' }
  ],
  friday: [
    { start: '09:00:00', end: '17:00:00' }
  ],
  saturday: null,
}

// Set Business Times in dayjs
dayjs.setBusinessTime(businessTimes);

Checking

Check if a date is a Holiday

According to holidays setup

const isHoliday = dayjs('2021-02-01').isHoliday();

console.log(isHoliday); // false

Check if a date is a Business Day

Bussiness Days are days with Business Hours settled, excluding Holidays.

const isBusinessDay = dayjs('2021-02-01').isBusinessDay();

console.log(isBusinessDay); // true

Check if a Time is Business Time

Bussiness Times are all minutes between Start and End of a Business Time Segment.

const isBusinessTime = dayjs('2021-02-01 10:00:00').isBusinessTime();

console.log(isBusinessTime); // true

Next and Last

Get Next Business Day

const nextBusinessDay = dayjs('2021-02-01').nextBusinessDay();

console.log(nextBusinessDay); // 2021-02-02

Get Last Business Day

const lastBusinessDay = dayjs('2021-02-01').lastBusinessDay();

console.log(nextBusinessDay); // 2021-01-29

Get Next Business Time

const nextBusinessTime = dayjs('2021-02-01 18:00:00').nextBusinessTime();

console.log(nextBusinessTime); // 2021-02-02 09:00:00

Get Last Business Time

const lastBusinessTime = dayjs('2021-02-01 08:00:00').lastBusinessTime();

console.log(lastBusinessTime); // 2021-01-29 17:00:00

Adding Business Time

Add Business Time

const day = dayjs('2021-02-01 10:00:00');
const timeToAdd: number = 2;

// Possible BusinessTimeUnit is 'day', 'days', 'hour', 'hours', 'minute', 'minutes'
const unit: BusinessTimeUnit = 'days';

const newBusinessTime: Dayjs = day.addBusinessTime(timeToAdd, unit);

console.log(newBusinessTime); // 2021-02-02 10:00:00

Add Business Days

This method is just an alias for .addBusinessTime(timeToAdd, 'days')

const day = dayjs('2021-02-01 10:00:00');
const timeToAdd: number = 2;

const newBusinessTime: Dayjs = day.addBusinessDays(timeToAdd);

console.log(newBusinessTime); // 2021-02-02 10:00:00

Add Business Hours

This method is just an alias for .addBusinessTime(timeToAdd, 'hours')

const day = dayjs('2021-02-01 10:00:00');
const timeToAdd: number = 2;

const newBusinessTime: Dayjs = day.addBusinessHours(timeToAdd);

console.log(newBusinessTime); // 2021-02-01 12:00:00

Add Business Minutes

This method is just an alias for .addBusinessTime(timeToAdd, 'minutes')

const day = dayjs('2021-02-01 10:00:00');
const timeToAdd: number = 30;

const newBusinessTime: Dayjs = day.addBusinessMinutes(timeToAdd);

console.log(newBusinessTime); // 2021-02-01 10:30:00

Subtracting Business Time

Subtract Business Time

const day = dayjs('2021-02-01 10:00:00');
const timeToSubtract: number = 2;

// Possible BusinessTimeUnit is 'day', 'days', 'hour', 'hours', 'minute', 'minutes'
const unit: BusinessTimeUnit = 'days';

const newBusinessTime: Dayjs = day.subtractBusinessTime(timeToSubtract, unit);

console.log(newBusinessTime); // 2021-01-28 10:00:00

Subtract Business Days

This method is just an alias for .subtractBusinessTime(timeToSubtract, 'days')

const day = dayjs('2021-02-01 10:00:00');
const timeToSubtract: number = 2;

const newBusinessTime: Dayjs = day.subtractBusinessDays(timeToSubtract);

console.log(newBusinessTime); // 2021-01-28 10:00:00

Subtract Business Hours

This method is just an alias for .subtractBusinessTime(timeToSubtract, 'hours')

const day = dayjs('2021-02-01 12:00:00');
const timeToSubtract: number = 2;

const newBusinessTime: Dayjs = day.subtractBusinessHours(timeToSubtract);

console.log(newBusinessTime); // 2021-02-01 10:00:00

Subtract Business Minutes

This method is just an alias for .subtractBusinessTime(timeToSubtract, 'minutes')

const day = dayjs('2021-02-01 10:00:00');
const timeToSubtract: number = 30;

const newBusinessTime: Dayjs = day.subtractBusinessMinutes(timeToSubtract);

console.log(newBusinessTime); // 2021-02-01 09:30:00

Diff

Business Time Diff

const start: Dayjs = dayjs('2021-02-01 10:00:00');
const end: Dayjs = dayjs('2021-02-04 10:00:00');

// Possible BusinessTimeUnit is 'day', 'days', 'hour', 'hours', 'minute', 'minutes'
const unit: BusinessTimeUnit = 'days';

const difference: number = start.businessTimeDiff(end, unit);

console.log(difference); // 3

Business Days Diff

This method is just an alias for .businessTimeDiff(dateToCompare, 'days')

const start: Dayjs = dayjs('2021-02-01 10:00:00');
const end: Dayjs = dayjs('2021-02-04 10:00:00');

const difference: number = start.businessDaysDiff(end);

console.log(difference); // 3

Business Hours Diff

This method is just an alias for .businessTimeDiff(dateToCompare, 'hours')

const start: Dayjs = dayjs('2021-02-01 10:00:00');
const end: Dayjs = dayjs('2021-02-01 15:00:00');

const difference: number = start.businessHoursDiff(end);

console.log(difference); // 5

Business Minutes Diff

This method is just an alias for .businessTimeDiff(dateToCompare, 'minutes')

const start: Dayjs = dayjs('2021-02-01 10:00:00');
const end: Dayjs = dayjs('2021-02-01 10:45:00');

const difference: number = start.businessMinutesDiff(end);

console.log(difference); // 25