2012 Schedule:

Event	Date	Start Time	Time Limit	Location
4Z	Sat 2/18/2012	Noon	4 hours	Glen Park BART Station
8Z	Sat 3/17/2012	Noon	8 hours	El Cerrito Plaza BART Station
12Z	Sat 4/14/2012	Noon	12 hours	Daly City BART Station
24Z	Sat 5/19/2012	4PM	24 hours	San Francisco City Hall