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filter is not described

password_reset_expiration filter-hook . WP 4.3.0

Filters the expiration time of password reset keys.

Usage

add_filter( 'password_reset_expiration', 'filter_function_name_5409' );
function filter_function_name_5409( $expiration ){
	// filter...

	return $expiration;
}
$expiration(int)
The expiration time in seconds.

Where the hook is called

check_password_reset_key()
password_reset_expiration
wp-includes/user.php 2256
$expiration_duration = apply_filters( 'password_reset_expiration', DAY_IN_SECONDS );

Where the hook is used (in WP core)

Does not used.