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date_i18n filter-hook . WP 2.8.0

Filters the date formatted based on the locale.


add_filter( 'date_i18n', 'filter_function_name_1917', 10, 4 );
function filter_function_name_1917( $j, $req_format, $i, $gmt ){
	// filter...

	return $j;
Formatted date string.
Format to display the date.
A sum of Unix timestamp and timezone offset in seconds.
Whether to use GMT timezone. Only applies if timestamp was not provided.
Default: false


Since 2.8.0 Introduced.

Where the hook is called

wp-includes/functions.php 193
$j = apply_filters( 'date_i18n', $j, $req_format, $i, $gmt );

Where the hook is used (in WP core)

wp-includes/default-filters.php 212
add_filter( 'date_i18n', 'wp_maybe_decline_date' );