MediaWiki
Customization
//LocalSettings.php $wgDefaultUserOptions['date']='ISO 8601';
//defined in messagesEn.php $datePreferences = array( 'ISO 8601'); $defaultDateFormat = 'ISO 8601';
//LocalSettings.php $wgDefaultUserOptions['date']='ISO 8601';
//defined in messagesEn.php $datePreferences = array( 'ISO 8601'); $defaultDateFormat = 'ISO 8601';