Authur Guinness Day is the 24th,just so you know.
From wikipedia:
To mark 250th anniversary of the signing of the 9,000 year lease at St. James's Gate brewery Guinness is holding a year-long global celebration, focused on the 24 September 2009, to be known as Arthur’s Day (the actual starting date on the lease was 31 December 1759). Arthur’s Day will be a global celebration, which will see a series of events take place around the world, including Dublin, Lagos, Yaoundé, New York, Kuala Lumpur and at Murphy's Law in Mannheim, Germany. Live music and entertainment will come from some of the world’s biggest names in music including the Black Eyed Peas and renowned DJ and producer David Holmes with rising stars such as Estelle, Kasabian, The Wombats and The Enemy and legendary acts such as Soul II Soul and The Undertones.
The highlight of this once in a lifetime celebration will see the raising of a glass to Arthur Guinness at 17.59 local time, to start a truly remarkable global toast.