Commerce Day is every first Monday of August — this year, it falls on August 1. Icelanders love this holiday and look forward to it with great enthusiasm. Though it started as a public holiday for blue-collar workers, it quickly caught on with other workers in the country and other European nations. Commerce Day is a day to celebrate workers’ daily services and sacrifices. It’s also a day off for everybody. The national stock exchange shuts down its normal operations on Commerce Day, as do most large and small businesses.