The user midnyte007
on Volity's discussion forums has suggested that a weekly game of Werewolf really ought to happen Saturday nights, at 7pm Pacific time.
As Volity's principal founder, and a fan of Werewolf (whose Volity version was developed by our own Andrew Plotkin), I encourage readers to give it a whirl. (If you don't already have a copy of Gamut, the cross-platform desktop application you need to play Volity games, you can download it from volity.net's front page.)
Obligatory Gameshelf link: Werewolf on YouTube.