In December each year, Radio Amateurs of Canada sponsors the RAC Canada Winter Contest.
Amateurs all over the world are invited to participate.
Contest Period: 0000 UTC to 2359 UTC December 19, 2020
RAC Contest Info: https://www.rac.ca/rac-canada-winter-contest-2020/
Rules PDF Form: https://www.rac.ca/wp-content/uploads/2020/10/Canada_Winter_Contest_Rules-2020_e.pdf