Costco has posted its 2015 Holiday Hours in the store.
Starting Saturday, November 7th 2015, and through Saturday, December 19th 2015, their hours are:
Monday to Friday: 10.00 am to 8.30 pm
Saturday: 9.30 am to 7.00 pm
Sunday: 10.00 am to 6.00 pm
Costco also has special hours for the following days:
Black Friday, which is on November 27th, 2015: 9.00 am to 8.30 pm
Christmas Eve, Wednesday, December 24th, 2015: 9.00 am to 5.00 pm
New Year’s Eve, Wednesday, December 31st, 2015: 9.00 am to 6.00 pm
Costco is CLOSED on Thanksgiving (November 26th), Christmas and New Year’s Day.