Add Date to Primary Navigation Bar

gistfile1.txt

//* Add Date to Primary Navigation
add_filter( 'wp_nav_menu_items', 'theme_menu_extras', 10, 2 );

function theme_menu_extras( $menu, $args ) {
	//* Change 'primary' to 'secondary' to add extras to the secondary navigation menu
	if ( 'primary' !== $args->theme_location )
		return $menu;
	$menu .= '<li class="right date">' . date_i18n( get_option( 'date_format' ) ) . '</li>';
	
	return $menu;
}