Shouldn't that make you GMT - 11? After all, once you've passed half way, you're on the way back...
Close mate, but no cigar. That my son, would mean that today is really only yesterday and you guys would get to New Years eve before us! And we all know thats bollocks. I'll be over my hangover before you guys then as well.
Youre right, normally we are just +12, but now its glorious summer we have daylight saving thus making us GMT+13.