How long can a fondant covered cake filled with cream cheese filling stay at room temperature?

A fondant-covered cake filled with cream cheese filling should generally not be left at room temperature for more than 2 to 4 hours. Cream cheese is perishable and can spoil if left out too long, especially in warm conditions. To ensure safety and maintain quality, it's best to refrigerate the cake if it will be out for an extended period. Always check for any signs of spoilage before serving.