Dairy Queen: FREE Cone Day — March 15 Shared on March 12, 2016 This post may contain affiliate links which means I make a small commission if you make a purchase at no additional cost to you. See the disclosure policy for more information. Make sure to stop by your local Dairy Queen Tuesday, March 15th for a FREE Soft Serve Ice Cream Cone! This post may contain affiliate links. See the disclosure policy for more information.