MediaWiki:Mw-widgets-dateinput-placeholder-day/qqq

Placeholder displayed in a date input field when it's empty, representing a date format with 4 digits for year, 2 digits for month, and 2 digits for day, separated with hyphens. This should be uppercase, if possible, and must not include any additional explanations. If there is no good way to translate it, make this message blank.