Changing WooCommerce's Add to Cart button text

Changing WooCommerce's "Add to Cart" button text to "BUY NOW"

// Changing Add to Cart button text on individual product pages function woo_custom_cart_button_text() { return __('BUY NOW', 'woocommerce'); } 

add_filter('woocommerce_product_single_add_to_cart_text', 'woo_custom_cart_button_text'); 

 // Changing Add to Cart button text on product archive/listing pages function woo_custom_product_add_to_cart_text() { return __( 'BUY NOW', 'woocommerce' ); } 

add_filter( 'woocommerce_product_add_to_cart_text', 'woo_custom_product_add_to_cart_text' );