H&M Canada Boxing Day Deals Starting at $5 + The First 100 People Could Get up to $300 off Their Purchase! H&M Canada has a great Boxing Day Deals available today. The Boxing Day deals from $5 + The First 100 people in line could get up to $300 off their purchase! The H&M Boxing Day Sale is valid today, December 26, 2017. Click here to view H&M offers.