'#type' => 'checkbox',
'#title' => t('Remind users at login if their time zone is not set'),
'#default_value' => $system_date->get('timezone.user.warn'),
'#type' => 'checkbox',
'#title' => t('Remind users at login if their time zone is not set'),
'#default_value' => $system_date->get('timezone.user.warn'),
DRUPAL_USER_TIMEZONE_EMPTY => t('Empty time zone'),
DRUPAL_USER_TIMEZONE_SELECT => t('Users may set their own time zone at registration'),
],
DRUPAL_USER_TIMEZONE_EMPTY => t('Empty time zone'),
DRUPAL_USER_TIMEZONE_SELECT => t('Users may set their own time zone at registration'),
],