Date-bengali-revised NPM

date-bengali-revised

Revised Bengali Calendar

Revised Bengali Calendar calculations with conversion from/ to Gregorian Date.
The revised version of the Bengali calendar was officially adopted in Bangladesh in 1987.

The module supports:

conversion from Gregorian Date to Bengali Date and vice versa
conversion from javascript Date object to Bengali Date and vice versa
formatting

Credits to Nuhil Mehdy for his project bangla-calendar. The inital algorithm and the bengali names were taken from there. Thanks.

Usage

Construct a new Bengali Date

Parameters

year: {Number|String}, bengali year in bengal or latin digits
month: {Number|String}, bengali month
day: {Number|String}, bengali day

// ES5
import Calendar from 'date-bengali-revised'
// CommonJs
const Calendar = require('date-bengali-revised').default

let cal = new Calendar(1425, 1, 1)
//> { year: 1425, month: 1, day: 1}

// with bengali digits
cal = new Calendar('১৪২৫', '১', '১')
//> { year: 1425, month: 1, day: 1}

// with bengali month name
cal = new Calendar('১৪২৫', 'বৈশাখ', '১')
//> { year: 1425, month: 1, day: 1}

from Gregorian Date

Parameters

year: {Number}, gregorian year
month: {Number}, gregorian month
day: {Number}, gregorian day

Returns: this for chaining

import Calendar from 'date-bengali-revised'
let cal = new Calendar()
cal.fromGregorian(2018, 4, 14)
//> { year: 1425, month: 1, day: 1}

to Gregorian Date

Convert Bengali Date back to Gregorian Date

Returns: {Object} {year, month, day} as gregorian date

let cal = new Calendar(1425, 1, 1)
let gdate = cal.toGregorian()
//> { year: 2018, month: 4, day: 14 }

from Date

Calculate bengali calendar date from javascript Date object

Parameters

date: {Date} - javascript Date object

Returns: this for chaining

let cal = new Calendar()
let date = new Date('2018-04-14T06:00:00Z')
cal.fromDate(date)
//> { year: 1425, month: 1, day: 1}

to Date

Returns: {Date} - javascript Date object

let cal = new Calendar(1425, 1, 1)
let date = cal.toDate(date).toISOString()
//> '2018-04-14T06:00:00Z'

formatting

Parameters

formatStr: {String} - formatting string

Input	Description
Y	Year with any number of digits and sign
Q	Season Name
M	Month number
MMMM	Month name
D	Day of month
dddd	Day name

Returns: {String} formatted date

let cal = new Calendar(1425, 1, 1)
cal.format()
//> '১ ১, ১৪২৫'
cal.format('dddd D MMMM, Y [Q]')
//> 'শনিবার ১ বৈশাখ, ১৪২৫ [গ্রীষ্ম]'

Contribution and License Agreement

If you contribute code to this project, you are implicitly allowing your code to be distributed under the MIT license. You are also implicitly verifying that all code is your original work or correctly attributed with the source of its origin and License.