National Dairy Challenge Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: April 15, 2021 – April 17, 2021 all-day 2021-04-15T00:00:00-04:00 2021-04-18T00:00:00-04:00 Where: Green Bay Wis Meetings and Expositions