You can hide your items before your auction starts by updating the "Item Status" in the Edit settings.
1) Click "Auctions" on the far left > Click on "Manage Auctions".
2) Click on the Name of your auction
3) Click "Edit Settings".
4) Click "Item Status" to show or hide your items before the start time arrives.
5) If you need to hide single items or hide multiple items at the same time, please see our article on Hiding Items from the auction page Here.