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Costco Holiday Hours 2020

*UPDATE* 7/5/20. Here are the holiday hours and closures for Costco. Need to know what time Costco opens or closes during a normal day? Regular warehouse hours are also listed. When in doubt, call your local Costco before you make the trip. Costco Holiday Closures: (United States) New Year’s Day: Wednesday, January 1, 2020. CLOSED Easter: Sunday, April 12, 2020. CLOSED Memorial Day: Monday, May 25, 2020. CLOSED…