Commerce Day is observed in Iceland on the first Monday of August. This holiday originated in 1894 when managers and unions of major shops in Reykjavik convened to discuss the idea of granting an extra day off to trade workers, inspired by a similar tradition from Denmark. Initially, Commerce Day was celebrated on various dates in August and September, but in 1931, it was officially designated as the first Monday in August. The holiday is now widely recognized across Europe, where manufacturers and stock exchange traders pause commerce on this day. Originally intended as a day off for trade workers, Commerce Day has evolved into a popular summer weekend filled with various festivals, allowing families to enjoy the warm weather. Celebrations take place throughout Iceland, making it a time for community gatherings and leisure activities.