$(document).ready(function () {
    if($('.xdget-lessonSchedule').length) {
        clearLessonSchedule();
    }
});

function clearLessonSchedule() {
    $('.xdget-lessonSchedule .schedule-block .day').each(function () {
        $(this).find('.record .event').each(function () {
            let eventHtml = $(this).html();
            
            eventHtml = eventHtml.replace(/\[!время=[^\]]+\]/g, '').replace(/\[!закрыт\]/g, '');
            
            $(this).html(eventHtml);
        });
    });
}