From WoD Gotham
In the real world, some moon phases last only one or two nights while others can last almost two weeks. If we use the real world calendar, come Auspices would be at a much greater advantage than other Auspices because of this imbalance. It would also mean that the World of Darkness should be teeming with Galliards and Theurges while everyone else should be nearly extinct.
So we have made a lunar calendar for the game that equally distributes moon phases for the purposes of gaining Rage and for calculating Frenzy difficulties. For your convenience we have listed the difficulties below: