change line 540
//return ec3_get_schedule() . $post_content;
return $post_content . ec3_get_schedule();
This of course didn't solve my problem re: excerpts. I didn't want schedules in my excerpts at all, so I removed the filter hooks around line 595:
// remove_filter('get_the_excerpt', 'wp_trim_excerpt');
// add_filter('get_the_excerpt', 'ec3_get_the_excerpt');
I am sure this si all evil, but it would be NICE to have:
1.) "schedule block at beginning  or end  of post?" options on the admin panel
2.) "include schedule in excerpts  ?" option on the admin panel.
and then check those settings and adjust accordingly.