5pm: Lights Out at the XYZ Bar presented by Change SF and W Hotel. Enjoy handcrafted organic cocktails, micro brews, and biodynamic wines paired with organic bar bites by Executive Chef Paul Piscopo.
7pm: Market Bar Watch the lights go out at the Ferry Building, the Bay Bridge, and downtown SF, with live performances by bicycle-pedal powered band, Fossil Fool, and carnival-like exhibits by the Sustainable Living Roadshow.
8pm: Dolores Park -- Fun in the Darkness Bring battery- or solar-powered flashlights (no candles), and acoustic instruments are encouraged.
Additionally, there are all sorts of day-time events going on today.