The Union Square Greenmarket will stay open late on Friday for “Nightmarket”, an event featuring 12 restaurants offering dishes for $5 to $10 each, a temporary beer garden that will offer sprits from Brooklyn Brewery, KelSo’s Beer, hard ciders and wines. The restaurants participating in “Nightmarket”, will be Jimmy’s No. 43, The Pavilion, Back Forty/Back Forty West, Clarkson, Northern Spy Food Co., Rouge Tomate and more. Nightmarket will run from 4 to 8 p.m. June 6 in Union Square.