1. Go to this page and download the library: Download ptplugins/filament-pikaday library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
PikadayDatePicker::make('published_at')
->displayFormat('DD/MM/YYYY') // user sees 15/06/2026
->locale('hr'); // calendar in Croatian
// → model / database always stores "2026-06-15"