Costco Logo*UPDATE* 9/3/17.
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.

Costco Holiday Hours: (United States)
New Year’s Day: Sunday, January 1, 2017. CLOSED
Easter: Sunday, April 16, 2017. CLOSED
Memorial Day: Monday, May 29, 2017. CLOSED
Independence Day: Tuesday, July 4, 2017. CLOSED
Labor Day: Monday, September 4, 2017. CLOSED
Thanksgiving Day: Thursday, November 23, 2017. CLOSED
Black Friday: November 24, 2017.  9:00 AM – 8:30 PM
Christmas Eve: Sunday, December 24, 2017. Special Hours.
Christmas Day: Monday, December 25, 2017. CLOSED
New Year’s Eve: Sunday, December 31, 2017. Special Hours.
New Year’s Day: Monday, January 1, 2018. CLOSED

Monday – Friday:  10:00 AM – 8:30 PM
Saturday:  9:30 AM – 6:00 PM
Sunday:  10:00 AM – 6:00 PM

Some Costco warehouses may offer extended hours during the Christmas holiday season.
Costco Business Center has different warehouse hours. Some regular Costco warehouses may have different hours.
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