University of Denver issued the following announcement on Sept. 4.
On Monday (9/7), the University of Denver will be closed in observance of Labor Day. This national holiday celebrates American workers for their contributions to the development and achievements of the United States.
Every day, but especially this #LaborDay weekend, we honor the contributions of essential workers by wearing a mask, washing our hands, keeping physical distance, and following public health and safety orders.
Original source can be found here.