BATS Improv riffs on the global, national, or local holidays observing odd subjects during The Day Of … performances at Fort Mason Center For Arts & Culture. Every day is a “National Day” commemorating something — from hangovers to whipped cream or static electricity.

Audience members select one of the days from a list supplied by the BATS team. The intrepid Main Stage crew improvises an entire movie from the chosen day, no matter what subjects it commemorates.