GRU's Customer Service/Business Offices will be Closed on the Following Days: 2019 Holiday Observance Date(s) Labor Day Monday, Sept. 2, 2019 Veteran's Day Monday, Nov. 11, 2019 Thanksgiving Day Thursday, Nov. 28, 2019 Day after Thanksgiving Friday, Nov. 29, 2019 Additional Holiday Tuesday, Dec. 24, 2019 Christmas Day Wednesday, Dec. 25, 2019 2020 Holiday Observance Date(s) New Year's Day Wednesday, Jan. 1, 2020 Martin Luther King Jr. Day (Observance date) Monday, Jan. 20, 2020 Memorial Day Monday, May 25, 2020 Independence Day (Observance date) Friday, July 3, 2020 Labor Day Monday, Sept. 7, 2020