firefly-iii/resources/lang/pl_PL/config.php

<?php

/**
 * config.php
 * Copyright (c) 2018 thegrumpydictator@gmail.com
 *
 * This file is part of Firefly III.
 *
 * Firefly III is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Firefly III is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

return [
    'html_language'         => 'pl',
    'locale'                => 'pl, Polish, polski, pl_PL.utf8, pl_PL.UTF-8',
    'month'                 => '%B %Y',
    'month_and_day'         => '%e %B %Y',
    'month_and_date_day'    => '%A %B %e, %Y',
    'month_and_day_no_year' => '%B %e',
    'date_time'             => '%e %B %Y o %T',
    'specific_day'          => '%e %B %Y',
    'week_in_year'          => 'Tydzień %W, %Y',
    'year'                  => '%Y',
    'half_year'             => '%B %Y',
    'month_js'              => 'MMMM YYYY',
    'month_and_day_js'      => 'D MMMM YYYY',
    'date_time_js'          => 'D MMMM YYYY [o] HH:mm:ss',
    'specific_day_js'       => 'D MMMM YYYY',
    'week_in_year_js'       => '[Tydzień] w. YYYY',
    'year_js'               => 'YYYY',
    'half_year_js'          => 'Q YYYY',
    'dow_1'                 => 'Poniedziałek',
    'dow_2'                 => 'Wtorek',
    'dow_3'                 => 'Środa',
    'dow_4'                 => 'Czwartek',
    'dow_5'                 => 'Piątek',
    'dow_6'                 => 'Sobota',
    'dow_7'                 => 'Niedziela',
];