Custom Proceed To Checkout Text

function woocommerce_button_proceed_to_checkout() {
       $checkout_url = WC()->cart->get_checkout_url();
       ?>
       <a href="<?php echo $checkout_url; ?>" class="checkout-button button alt wc-forward"><?php _e( 'Check On Out', 'woocommerce' ); ?></a>
       <?php
     }