How late does costco stay open

Costco Warehouse: Warehouse Hours : Monday - Friday 10:00 AM - 8:30 PM Saturday 9:30 AM - 6:00 PM Sunday 10:00 AM - 6:00 PM
Answered by kgb agent Mark J on Thursday, June 07 2012 at 09:35PM EDT
Source: shop.costco.com/...