So, they wiped a whole entire day off the calendar, to supposedly move themselves Ahead - in some other time zone or something

You'll just have to watch the Video to try to understand it, Ol' Vic has lots of really nice cool South Pacific Travel Videos as he travels around the South Pacific, lucky guy !
[youtube]http://www.youtube.com/watch?v=MYPMzpVH9iw[/youtube]