WordPress at a glance
filter is not described

the_date filter-hook . WP 0.71

Filters the date a post was published for display.

Usage

add_filter( 'the_date', 'filter_function_name_3781', 10, 4 );
function filter_function_name_3781( $the_date, $d, $before, $after ){
	// filter...

	return $the_date;
}
$the_date(string)
The formatted date string.
$d(string)
PHP date format. option if not specified.
Default: 'date_format'
$before(string)
HTML output before the date.
$after(string)
HTML output after the date.

Where the hook is called

the_date()
wp-includes/general-template.php 2232
$the_date = apply_filters( 'the_date', $the_date, $d, $before, $after );

Where the hook is used (in WP core)

Does not used.