Costco warehouses will implement new hours beginning June 30 for its upper-level members. Here's what these changes will entail.

Costco's new hours start June 30 for executive members. Clubs also will stay open later on Saturdays for all members.

Starting on June 30, Costco’s hours are changing. But this change is only for select members, so you’ll need to confirm your membership status before you head to your local warehouse. As we previously reported earlier this month, Costco is going to open one hour earlier next week for Executive members.