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Convert dates between Ethiopian and European/Gregorian calendars




Ethio-European Date Converter

convert date-time values between Ethiopian and European/Gregorian calendar.

build and test Version License FOSSA Status

Ethiopian calendar is unique for having 13 months, 12 months each with 30 days and 1 more month with 5 or 6 days. It is also 7/8 years behind the European/Gregorian calendar. This library contains javascript code (node/browser) for conversion of the date formats back and forth.



yarn add ethiopian-calendar-date-converter


npm i -S ethiopian-calendar-date-converter




import { EthDateTime, limits } from 'ethiopian-calendar-date-converter'

// Create a date instance from current date-time
const ethDateTime =

// Convert to Ethiopian date
const ethDateTime = EthDateTime.fromEuropeanDate(dateInput)

// Convert from Ethiopian date
const ethDateTime = new EthDateTime(
  2012, // year (in Ethioian Calendar)
  2, // month of year (second month of year, in Ethioian Calendar)
  29, // day of month (in Ethioian Calendar)
  1, // hour (in Ethioian Time format)
  52, // minute (in Ethioian Time format)
  52, // second (in Ethioian Time format)
const date = ethDateTime.toEuropeanDate()

// get `limits` import to get minimum and maximum dat values that can be processed


A sample web application using this library can be accessed at


This project is licensed under the MIT license.