--- title: How to add a date popup calendar onto a custom form excerpt: How to use a date popup calendar within your custom module. tags: - forms - form-api - date - calendar - drupal-7 - drupal-planet - drupal --- How to use a date popup calendar within your custom module. First, I need to download the [Date](http://drupal.org/project/date "Date module on Drupal.org") module, and make my module dependent on date_popup by adding the following line into my module's .info file. ```language-ini dependencies[] = date_popup ``` Within my form builder function: ```language-php $form['date'] = array( '#title' => t('Arrival date'), // Provided by the date_popup module '#type' => 'date_popup', // Uses the PHP date() format - http://php.net/manual/en/function.date.php '#date_format' => 'j F Y', // Limits the year range to the next two upcoming years '#date_year_range' => '0:+2', // Default value must be in 'Y-m-d' format. '#default_value' => date('Y-m-d', time()), ); ```