The answer to this question largely depends on the region in which you live. In some places, such as the northeastern United States and parts of Europe, it is not generally considered appropriate to put up decorations until late November or early December. On the other hand, in other parts of the world, like Canada and many parts of Latin America, decorations may be seen all year round. Ultimately, it is best to consult with your local community and festive traditions to gain a better understanding of when it is socially acceptable to start putting up holiday decorations in your area.