Open Saturdays year-round on North and West sides of Union Square Park - the world-famous Union Square Greenmarket. Beer & Spirits of New York Pop-up March - December, every Saturday next to the Greenmarket Grainstand (upcoming schedule: [hidden]). Book Signings organized by Food Book Fair are scheduled on Saturdays from May through November 10am - 12pm (schedule: [hidden]). Market Hours: 8:00am - 6:00pm. More Info below.