react-dates-rtl/src/utils/toISODateString.js

Based on react-dates by airbnb [with RTL support]

import moment from 'moment';

import toMomentObject from './toMomentObject';

import { ISO_FORMAT } from '../../constants';

export default function toISODateString(date, currentFormat) {
  const dateObj = moment.isMoment(date) ? date : toMomentObject(date, currentFormat);
  if (!dateObj) return null;

  return dateObj.format(ISO_FORMAT);
}