newsupernova/vendor/magento/module-theme/view/frontend/templates/js/calendar.phtml

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
?>
<?php
/**
 * Calendar localization script. Should be put into page header.
 *
 * @see \Magento\Framework\View\Element\Html\Calendar
 */
?>

<script>
require([
    "jquery",
    "jquery/ui"
], function($){

//<![CDATA[
    $.extend(true, $, {
        calendarConfig: {
            dayNames: <?= /* @escapeNotVerified */ $days['wide'] ?>,
            dayNamesMin: <?= /* @escapeNotVerified */ $days['abbreviated'] ?>,
            monthNames: <?= /* @escapeNotVerified */ $months['wide'] ?>,
            monthNamesShort: <?= /* @escapeNotVerified */ $months['abbreviated'] ?>,
            infoTitle: "<?= /* @escapeNotVerified */ __('About the calendar') ?>",
            firstDay: <?= /* @escapeNotVerified */ $firstDay ?>,
            closeText: "<?= /* @escapeNotVerified */ __('Close') ?>",
            currentText: "<?= /* @escapeNotVerified */ __('Go Today') ?>",
            prevText: "<?= /* @escapeNotVerified */ __('Previous') ?>",
            nextText: "<?= /* @escapeNotVerified */ __('Next') ?>",
            weekHeader: "<?= /* @escapeNotVerified */ __('WK') ?>",
            timeText: "<?= /* @escapeNotVerified */ __('Time') ?>",
            hourText: "<?= /* @escapeNotVerified */ __('Hour') ?>",
            minuteText: "<?= /* @escapeNotVerified */ __('Minute') ?>",
            dateFormat: $.datepicker.RFC_2822,
            showOn: "button",
            showAnim: "",
            changeMonth: true,
            changeYear: true,
            buttonImageOnly: null,
            buttonImage: null,
            showButtonPanel: true,
            showWeek: true,
            timeFormat: '',
            showTime: false,
            showHour: false,
            showMinute: false
        }
    });

    enUS = <?= /* @escapeNotVerified */ $enUS ?>; // en_US locale reference
//]]>

});
</script>