DrunkenF00l (Tony Paloma, who works for valve now) posted this, about the "full moon" restriction for halloween items:
Quote:
Just to reconfirm, yes, we mean real life full moons. The phase of the Moon is the same no matter where you are on Earth, but of course, not everyone can see the Moon at the same time much like not everyone can see the Sun at the same time. Thus, we've built in a fudge factor of ±1 day to ensure that everybody gets an opportunity to play for the full moon event.
Just FYI
Source: http://forums.steampowered.com/forums/s ... st26131646