the-events-calendar-addtocal-buttons.php

<?php
/*
	Plugin Name: The Events Calendar - Add to Calendar Buttons
	Description: Change the copy in the Add to Calendar export buttons in The Events Calendar plugin
	Version: 1.1.1
	Author: Tarfoot Consulting, Inc.
	Author URI: http://tarfoot.com
*/

// Changes the text labels for Google Calendar and iCal buttons on a single event page on The Events Calendar plugin for Wordpress
// From https://theeventscalendar.com/knowledgebase/change-the-text-for-ical-and-google-calendar-export-buttons/

add_action( 'init', 'tribe_really_remove_action_single_event_links' );
function tribe_really_remove_action_single_event_links() {
	remove_action( 'tribe_events_single_event_after_the_content', array( 'Tribe__Events__iCal', 'single_event_links' ) );	
}

add_action( 'tribe_events_single_event_after_the_content', 'customized_tribe_single_event_links' );
 
function customized_tribe_single_event_links()	{
	if (is_single() && post_password_required()) {
		return;
	}
 
	echo '<div class="tribe-events-cal-links">';
	echo '<a class="tribe-events-gcal tribe-events-button" href="' . tribe_get_gcal_link() . '" title="' . __( 'Add to Google Calendar', 'tribe-events-calendar-pro' ) . '">+ Add to Google Calendar</a>';
	echo '<a class="tribe-events-ical tribe-events-button" href="' . tribe_get_single_ical_link() . '">+ Add to Outlook / iCal</a>';
	echo '</div><!-- .tribe-events-cal-links -->';
}