You can find the opening and closing of an auction as shown in the image below:
If you click on "More information about this auction" -> Consumer goods, electronics and laptops -BVA Top Lots you will find the information about the auction. You will find this page on every lot with the name of the auction.
On this page, you will find lot information from a delivery auction. You can see the closing and starting date and times. You will also find information on whether or not you can withdraw.