You can schedule a wizard for a time in the future, which can be particularly useful for setting sale pricing to update when you are not able to use the system, for example wanting a sale price to work from Midnight before Black Friday.
To do this, go to Wizards in the Wizards & Imports section of the menu in the Back Office:

Go through the process of building up your wizard with products, then make the changes to the items as required. Once your changes have been made, choose your desired date and time from the Select Schedule Time box at the top of the wizard:

Clicking in this box will open a Calendar widget with options to choose a Date and a Time.

When you're happy, commit your wizard, and it will run at the appointed time on the date selected.
N.B.: Wizards are processed sequentially, so will be 'queued' and processed one after another.