Coors Light is changing its name to "Mondays Light" for a limited time to commiserate with fans as the football season comes to an end. The temporary name change is a marketing gimmick to offer a "Case of the Mondays" 12-pack to help fans cope with the end of the football season. The company is tapping into the cultural reference of feeling down on Mondays after the excitement of football games. Despite the name change, the taste of the beer remains the same, and the promotion is aimed at engaging fans during the football season's conclusion.
Source: https://tasteofcountry.com/ixp/252/p/coors-light-name-change/