 The annual event started at 10 a.m. PDT (1700 UTC ) in the Yerba Buena Center for the Arts in San Francisco, California.
<clarity>  The annual event started at 10 a.m. PDT (1700 UTC ) in the Yerba Buena Center for the Arts in San Francisco, California.
 The annual event started at 10 a.m. PDT (1700 ) in the Yerba Buena Center for the Arts in San Francisco, California.