Chatwoot/app/javascript/shared/helpers/DateHelper.js

import fromUnixTime from 'date-fns/fromUnixTime';
import format from 'date-fns/format';
import isToday from 'date-fns/isToday';
import isYesterday from 'date-fns/isYesterday';

export const formatUnixDate = (date, dateFormat = 'MMM dd, yyyy') => {
  const unixDate = fromUnixTime(date);
  return format(unixDate, dateFormat);
};

export const formatDate = ({ date, todayText, yesterdayText }) => {
  const dateValue = new Date(date);
  if (isToday(dateValue)) return todayText;
  if (isYesterday(dateValue)) return yesterdayText;
  return date;
};