When Mon, Sep 2 2019, 12am Mon, Sep 7 2020, 12am Mon, Sep 6 2021, 12am Mon, Sep 5 2022, 12am Mon, Sep 4 2023, 12am Mon, Sep 2 2024, 12am Mon, Sep 1 2025, 12am Mon, Sep 7 2026, 12am Mon, Sep 6 2027, 12am Mon, Sep 4 2028, 12am Where McMillan Memorial Library McMillan Library will be closed in observance of Labor Day. Image