newsupernova/app/code/Magefan/Blog/Helper/Data.php

<?php
/**
 * Copyright © 2017 Ihor Vansach (ihor@magefan.com). All rights reserved.
 * See LICENSE.txt for license details (http://opensource.org/licenses/osl-3.0.php).
 *
 * Glory to Ukraine! Glory to the heroes!
 */

namespace Magefan\Blog\Helper;

use Magento\Framework\App\Action\Action;

/**
 * Magefan Blog Helper
 */
class Data extends \Magento\Framework\App\Helper\AbstractHelper
{
    /**
     * Retrieve translated & formated date
     * @param  string $format
     * @param  string $dateOrTime
     * @return string
     */
    public static function getTranslatedDate($format, $dateOrTime)
    {
    	$time = is_numeric($dateOrTime) ? $dateOrTime : strtotime($dateOrTime);
        $month = ['F' => '%1', 'M' => '%2'];

        foreach ($month as $from => $to) {
            $format = str_replace($from, $to, $format);
        }

        $date = date($format, $time);

        foreach ($month as $to => $from) {
            $date = str_replace($from, __(date($to, $time)), $date);
        }

        return $date;
    }
}